The complete statement is "CH3CHOHCH3 is not an electrolyte in solution." This is further explained below.
What is electrolyte ?Generally,a liquid or gel containing ions that may be broken down by electrolysis, such as the kind used in batteries.
In conclusion, "CH3CHOHCH3 is not an electrolyte in solution," is the whole sentence.
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7. What is the mole ratio of NH3 to N₂ in the balanced chemical equation below?
4NH3(g) + 6NO (g) → 5N2 (g) + 6H₂O (l)
A. 3:2
B. 4:5
C. 10:11
D. 1:1
8. What mass of glucose (C6H12O6) can be produced from a photosynthesis reaction that occurs using 10
moles of CO₂?
6CO₂ (g) + 6H₂O (1)→ C6H12O6 (aq) + 602 (g)
A 10 grams
B. 180 grams
C. 300 grams
D. 1,080 grams
9. During photosynthesis, how many moles of water (H₂O) are needed to produce 150 grams of glucose
(C6H12O6)?
A. 2 moles
B. 3 moles
C. 4 moles
D. 5 moles
10. During photosynthesis, how many grams of oxygen gas (0₂) are produced from 55 grams of carbon
dioxide gas (CO₂)?
A. 32 grams 0₂
B. 40 grams 0₂
C. 44 grams 0₂
D. 55 grams O₂
7) From the coefficients of the equation, the answer is 4:5.
8) From the coefficients of the equation, for every 6 moles of carbon dioxide consumed, 1 moleof glucose is consumed. This means that 1.66 moles of glucose is produced. Glucose has a formula mass of 180.16 g/.mol, so the answer is (1.66)(180.16), which is about 300 grams.
9) From the coefficients of the equation, we know that for every 6 moles of water consumed, 1 mole of glucose is consumed. Since we want 150 grams of glucose, and glucose has a formula mass of 180.16 g/mol, we want 150/180.16 = 0.83 mol of glucose. Thus, we need 0.83(6) moles of water, which is 5 moles to 1 sf.
10) From the coefficients of the equation, we know that for every 6 moles of carbon dioxide produced, 6 molds of oxygen are produced. Since carbon dioxide has a formula mass of 44.009 g/mol, 55 grams is about 1.25 moles. Thus, since oxygen has a formula mass of about 32 g/mol, the answer is 32(1.25), which is about 55 grams.
Iron is found in Earth's crust as several iron compounds. Calculate the mass in kilograms of the amount of each of the following iron compounds that contains 8.0×10^3kg of iron
Fe2O3 (hematite)
Express your answer using two significant figures.
The mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.
What are iron ores?Iron ores refers to minerals in which iron occur in combined form found in the earth's crust.
Some ores of iron include:
hematite,magnetite,limonite, and siderite.Molar mass of hematite, Fe₂O₃ = 160 g/mol
Molar mass iron = 56 g/mol
Percent mass of iron in hematite = 56/160 = 35%
The mass of hematite that contains 8.0×10³ kg of iron = 8.0 × 10³kg/0.35 = 2.29 × 10⁴ kg.
Therefore, the mass of hematite that contains 8.0×10³ kg of iron is 2.29 × 10⁴ kg.
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The balanced net ionic equation for the reaction, if any, that occurs when aqueous solutions of Na2CO3 and CaCl2 are mixed is __________.
The balanced net ionic equation for the reaction, that occurs when aqueous solutions of Na₂CO₃ and CaCl₂ are mixed is Na₂CO₃ (aq) + CaCl₂ (aq) → CaCO₃ (s) + 2NaCl (aq).
What is Balanced Chemical Equation ?The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.
The balanced equation for Na₂CO₃ and CaCl₂ is as follows
Na₂CO₃ (aq) + CaCl₂ (aq) → CaCO₃ (s) + 2NaCl (aq)
When two aqueous solutions are mixed then a white insoluble solid CaCO₃ will precipitate out of solution. The above reaction is double displacement reaction.
Thus from the above conclusion we can say that The balanced net ionic equation for the reaction, that occurs when aqueous solutions of Na₂CO₃ and CaCl₂ are mixed is Na₂CO₃ (aq) + CaCl₂ (aq) → CaCO₃ (s) + 2NaCl (aq).
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America is the world’s number one producer of natural gas derived from shale oil. true false
Correct option:
The statement "America is the world’s number one producer of natural gas derived from shale oil" is True.
Shale gas:
Shale, a form of sedimentary rock, is used to make shale gas, which is natural gas.Over the past ten years, shale gas has gained importance as a natural gas source in the United States. Interest has also grown in possible shale gas reserves in Canada, Europe, Asia, and Australia. With large production in the US and Canada, North America is the region that produces the most shale gas globally. Only Argentina and China have so far produced shale gas on a commercial basis outside of the US and Canada.The environmental dangers associated with shale gas production like, Induced seismicity from hydraulic fracturing has been known to cause earthquakes in three different places across the world and leaks of extraction waste and chemicals into water systems, the release of greenhouse gases during extraction, and the pollution brought on by the poor processing of natural gas have led to its suspension in numerous nations.Learn more about shale gas here:
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Sodium chloride is composed of molecules that are stable when dry. In water, the atoms of the molecules separate from each other. What type of chemical bond holds the dry substance together
The molecules of Sodium chloride holds a chemical bond to become stable when dry is an ionic bond.
What are chemical bonds?The chemical bonds are those which holds the atoms of molecules together and creates a temporary connection between them.
The three major types of chemical bonds are:
Ionic bondsCovalent bondsMetallic bondsWhat are ionic bonds?The ionic bonds generally occurs in between a metal and a nonmetal ions.
The atoms share electrons in between them to become stable, forms ions. Due to electric attraction between these ions forms a bond between them. That bond is called as Ionic bond.
The type of chemical bond in Sodium chloride:Sodium chloride - NaCl
Where Na(sodium) forms Na⁺ ion(metal) by sharing electrons with the chlorine atom and Cl(chlorine) forms Cl⁻ ion(non-metal).
So, due to the attraction between the anion and the cation, a bond is established between them. So, it is called Ionic bond.
Therefore, the chemical bond in Sodium chloride is an Ionic bond.
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was Velcro a mistake or purpose
Answer:
Velcro was an accident.
Explanation:
hope it helps
sry if im wrong
Answer:
it was a accident
Explanation:
At 25 °C, what is the hydroxide ion concentration, [OH−] , in an aqueous solution with a hydrogen ion concentration of [H+]=4.8×10−4 M?
(oh-) =
[OH⁻]= 1 x 10⁻¹⁴ : 4.8 x 10⁻⁴ = 2.083 x 10⁻¹¹
You carefully place lettered candy with the letters facing up in water. Without disturbing the water, you notice the letters float above the candy as the solution process takes place. Discuss why this would happen in terms of soluble, insoluble, miscible, immiscible, and water as the universal solvent. Describe the general conditions under which solids are most soluble in liquids.
Oil-based food coloring used to make the letters, won't dissolve in water. According to some sources, oil-based food coloring is either insoluble or immiscible in water. Because it is present in more solutions, water serves as the universal solvent.
Universal solvent:-A substance that displaces most compounds is known as a universal solvent. Because it dissolves more chemicals than any other solvent, water is known as the universal solvent.
What chemicals lack solvability?Sand, plastic, wood, metal, glass, and cloth are examples of insoluble materials. At standard conditions of pressure and temperature, these compounds never dissolve in water or any other solvent. Other examples of insoluble materials are sugars and inorganic salts.
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Question 6 of 10
Which of the following molecules contains a polar covalent bond?
OA. 0₂
OB. H₂
OC. N₂
OD. CO
SUBMIT?
Explanation:
Correct option is C)
HCl is most polar due to the high electronegativity of Cl.
Answer:
the answer D
Explanation:
I hope it's helps you
Please provide thorough explanation
Possible products in this reaction are the products 2 and 3.
What is the Friedel Crafts reaction?The Friedel Crafts reaction is one in which the electrophile is created by a Lewis acid reaction between the AlCl3 and the alkylhalide reactant .
Now we know that there is the possibility of two products in this reaction due to a resonance shift as such possible products in this reaction are the products 2 and 3.
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What is the total mass of the protons in a`typical ammonia (NH3) molecule? The mass of a proton is 1.673 × 10^-24 g. of a neutron 1.675 × 10^-24 g, and of an electron
9.109 × 10^-28 g.
Answer:
1.673*10^-23 grams
Explanation:
This is a bit of an odd question, and can be done a few different ways.
In a "typical" NH3 molecule, N has 7 protons, and 7 neutrons, while H has 1 proton and 0 neutrons. In total in a NH3 molecule, there are 7+3*1 = 10 protons. We know how much a proton weighs, so we can directly multiple 10 by 1.673*10^-24 grams, getting 1.673*10^-23 grams
A more complicated way, in the case that a proton's mass isn't already given
If we don't know the mass of a proton, we can still do this problem. Most of the mass of a molecule resides in the protons and neutrons. a mole of ammonia that is made of N-14 and H-1 (numbers signifying atomic mass) weighs 14+3*1 = 17 grams. there are 6.022*10^23 molecules in a mol of any molecule, 17 grams of the specific ammonia that we have equals to 6.022*10^23 molecules.
6.022*10^23 molecules / mol = 17 grams / mol
6.022*10^23 molecules = 17 grams
1 molecule = 2.823*10^-23 grams
There are 10 protons and 7 neutrons in one molecule NH3, so if we subtract the mass of the neutrons in one molecule of NH3, we get the mass of the protons in one molecule of NH3
(mass of 10 protons + mass of 7 neutrons) - (mass of 7 neutrons) = mass of 10 protons
(mass of one NH3) - (mass of 7 neutrons) = mass of 10 protons
7 neutrons weigh 1.1725*10^-23 grams and 1 molecule of NH3 is 2.823*10^-23 grams so substitute everything
2.823*10^-23 - 1.1725*10^-23 = 1.6505e-23 grams, which is a fairly close value to what we got using the first method.
The total mass of the protons in a typical ammonia (NH₃) molecule is 1.673 x 10⁻²³ g. The correct option is 4.
What are protons?Protons are charged particles that are present in the atom. Protons are positively charged, and they are present inside the nucleus of the atom.
Ammonia is a gas that is made up of nitrogen and hydrogen. Nitrogen = 7 protons and Hydrogen has only 1 proton.
In a "typical" NH₃ molecule, N has 7 protons, and 7 neutrons, while H has 1 proton and 0 neutrons. In total, in an NH₃ molecule, there are 7+ 3 x 1 = 10 protons.
1.673 x 10⁻²³ grams
Most of the mass of a molecule resides in the protons and neutrons.
A mole of ammonia that is made of N-14 and H-1 (numbers signifying atomic mass) weighs 14 + 3 x 1 = 17 grams.
Thus, the correct option is 4. 1.673 x 10⁻²³ g.
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The question is incomplete. Your most probably complete question is given below:
1. None of these
2. 1.675 x 1023 g
3. 1.1711 x 1023 g
4.1.673 x 10-23 g
5. 9.109 x 10-27 g
6. 1.172 x 102 g
7. 6.3763 x 10-27 g
what is matter made of?
Calculate the average atomic weight of Fe if abundance of isotopes 54Fe, 56Fe and 57Fe are 5%, 90%, 5% respectively.
Answer:
here is the answer
tell me is it helpful
Pls help ill mark you brainlist asap pls
Answer:
Add Copper(II) oxide, CuO, to an aqueous solution of hydrochloric acid, HCl, to produce the salt copper chloride, CuCl2. To obtain a pure, dry sample of the salt, remove excess, undissolved CuO through filtration. Then heat the system to evaporate water, leaving behind pure Copper(II) Oxide.
The enzyme carbonic anhydrase has zinc in a tetrahedral complex at its active site. Suggest a structural reason why car- bonic anhydrase synthesized with Ni2, Fe2, or Mn2 in place of Zn2 gives an enzyme with less catalytic efficiency
Answer:
Suggest a structural reason why carbonic anhydrase synthesized with Ni2+, Fe2+, or Mn2+ in place of Zn2+ gives an enzyme with less catalytic efficiency.
The detonation of some amount of TNT causes the volume of nearby gas to increase from 10.0 L to 90.0 L (the pressure remains constant at 1.00 atm). Additionally, 90.0 kJ of energy is released as heat during the detonation. What is of the TNT in kilojoules for this process
Internal combustion energy for TNT(Trinitro toluene) is found to be -170 kJ.
Internal energy= (- heat evolved by the system) + Work done by the system
ΔU = -Q+W
W = - PΔV
P= pressure
ΔV =difference in volume
Given,
V1 = 10 L
V2 = 90 L
∴ΔV = V2-V1 = 90-10 = 80 L
P = 1 atm
∴W = - ( 1× 80)
= -80 kJ
Heat evolved by the system = 90 kJ
∴Δ U= - 90 kJ - 80 kJ
= - 170 kJ
Thus, Internal combustion energy for TNT(Trinitro toluene) is found to be -170 kJ.
NOTE : here work done by the system is considered negative and also heat evolved by the system is taken -Ve.
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How many grams of nitrogen are contained in a sample of C4H9N302 that also
contains 9.42 x 1024 hydrogen atoms?
Empirical formula = mol ratio
mol H = 9.42 x 10²⁴ : 6.02 x 10²³ = 15.648
mol N = 3/9 x 15.648 = 5.216
mass N = 5.216 x 14 g/mol =73.024 g
What is the density, in g/L, of methanol vapor at 400 K and 1.15 atm. The molar mass of methanol is 32.0 g/mol.
Taking into account the ideal gas law, the density of methanol vapor is 1.1219 [tex]\frac{g}{L}[/tex].
Ideal gas lawIdeal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law:
P×V = n×R×T
where
P is the gas pressure.V is the volume that occupies.T is its temperature.R is the ideal gas constant. The universal constant of ideal gases R has the same value for all gaseous substances.n is the number of moles of the gas.Density of methanolNow, taking into account this law, you get:
[tex]\frac{n}{V} =\frac{P}{RXT}[/tex]
The units are moles/L. So, in order to calculate the density, it is necessary to take into account the molar mass, in order to calculate the density as follows:
[tex]density =\frac{P}{RXT}xmolar mass[/tex]
Then, in this case, you know:
P= 1.15 atmT= 400 KR= 0.082 [tex]\frac{atmL}{molK}[/tex]molar mass= 32[tex]\frac{g}{mol}[/tex]Replacing in the previous expression:
[tex]density =\frac{1.15 atm}{0.082\frac{atmL}{molK} X400 K}x32 \frac{g}{mol}[/tex]
Solving:
density= 1.1219 [tex]\frac{g}{L}[/tex]
Finally, the density of methanol vapor is 1.1219 [tex]\frac{g}{L}[/tex].
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When aqueous solutions of sodium phosphate and lead(II) nitrate are combined, solid lead(II) phosphate and a solution of sodium nitrate are formed. The net ionic equation for this reaction is:
2 Na3PO4 (aq) + 3 Pb(NO3)2 (aq) --> 2 Pb3(PO4)2 (s) + 6 NaNO3 (aq)
The total ionic equation is
Spectator ions should not be removed here. Spectator ions are part of total ionic equation 6 Na+ (aq) + 2 PO43-(aq) + 3 Pb2+ (aq) + 6 NO3- (aq) --> 2 Pb3(PO4)2 (s) + 6 Na+ (aq) + 6 NO3- (aq)
Spectator ions should be removed now. Spectator ions are not part of total ionic equation
After removing Spectator ions, net ionic equation is:
3 Pb2+ (aq) + 2 PO43- (aq) -> 2 Pb3(PO4)2 (s)
Answer:
2+ 3 3 Pb (aq) + 2 PO4 (aq) -> 2 Pb3(PO4)2 (5)
Lead(II) nitrate,
Pb
(
NO
3
)
2
, and sodium bromide,
NaBr
, are soluble in an aqueous solution, which means that they dissociate completely to form cations and anions when dissolved in water.
Please check the attached file for brief answer.
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10.5 mL of an unknown solution are diluted to 80.0 mL. The concentration of the
new solution was determined to be 0.172 M. What was the molarity of the
unknown solution? (Report your answer to two places past the decimal point.
Moodle is looking for a number only, no units.)
The molarity of the unknown solution prior to dilution is calculated to be 1.31M.
How to calculate molarity?The molarity of a solution can be calculated using the following formula:
C1V1 = C2V2
Where;
C1 = initial molarityC2 = final molarityV1 = initial volumeV2 = final volume10.5 × C1 = 80 × 0.172
10.5C1 = 13.76
C1 = 13.76/10.5
C1 = 1.31M
Therefore, the molarity of the unknown solution prior to dilution is calculated to be 1.31M.
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What is the formula for Water?
The formula of water is H2O
Explanation:
The water molecule consists of two hydrogen atoms and one oxygen atom. So the chemical molecula formula of water is H2O where H is the symbol of hydrogen and O is the symbol of oxygen and 2 indicates that there are two atoms of hydrogen.
Hope this helps you!
What is the Volume of 1.1 moles of an ideal gas at a Temperature of 21 °C and a Pressure of 760 torr?
Answer:
26.5 L
Explanation:
To find the volume of the gas, you need to use the Ideal Gas Law. The equation looks like this:
PV = nRT
In this formula
-----> P = pressure (torr)
-----> V = volume (L)
-----> n = number of moles
-----> R = constant (62.36 L*torr/mol*K)
-----> T = temperature (K)
Before you can plug the given values into the equation, you need to convert Celsius (°C) to Kelvin (K). Then, you can solve for volume through simplification.
P = 760 torr R = 62.36 L*torr/mol*K
V = ? L T = 21 °C + 273.15 = 294.15 K
n = 1.1 moles
PV = nRT
(760 torr)V = (1.1 moles)(62.36 L*torr/mol*K)(294.15 K)
(760 torr)V = 20177.5134
V = 26.5 L
3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
In the above equation how many moles of water can be made when 9 moles of HNO3 are consumed?
Answer:
5 moles
Explanation:
From the coefficients of the equation, we know that for every 8 moles of nitric acid consumed, 4 moles of water are produced.
So, the answer is 9(4/8), which is 5 moles to 1 sf.
which of the following are examples of chemical changes? Select all that apply.
a. paper tearing
b. milk spoiling
c. firecrackers exploding
d. water evaporating
Answer:
b. milk spoiling and c. firecrackers exploding
Explanation:
These are both chemical changes, the composition of them change when this happens and it cannot be reversed
X, Y & Z represents 2, 12 & 17 relatively a. Write the electronic configuration of x, y, and z b. Place the elements in the appropriate group and period of the periodic table. c. X, Y & Z represents 2, 12 & 17 relatively
The electronic configuration of x, y, and z.
[tex]x=1s^2[/tex]
[tex]Y= 1s^22s^22p^63s^2[/tex]
[tex]Z= 1s^22s^22p^63s^23p^5[/tex]
What is an electronic configuration?Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.
a.
[tex]x=1s^2[/tex]
[tex]Y= 1s^22s^22p^63s^2[/tex]
[tex]Z= 1s^22s^22p^63s^23p^5[/tex]
b.
x= Period 1 and group18
Y=Element is in period 3 and Group 2
Z=Element is in period 3 and group 17.
c.
X, Y & Z represents Helium, magnesium, and chlorine.
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How many grams of oxygen are needed to react with 56.8 grams of ammonia?
The amount of oxygen needed would be 80.19 grams
Stoichiometric problemsFrom the equation of the reaction:
[tex]4NH_3 +3 O_2 --- > 2N_2 + 6H_2O[/tex]
The mole ratio of oxygen and ammonia is 3:4
Mole of 56.8g ammonia = 56.8/17 = 3.34 moles
Equivalent mole of oxygen = 3/4 x 3.34 = 2.5059 moles
Mass of 2.5059 moles oxygen = 2.5059 x 32 = 80.19 grams
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A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to –10.0°C as it releases 543 J of energy. What is the mass of the sample? Round your answer to three significant figures.
The mass of a sample of tin whose temperature decreases from 15.0°C to –10.0°C as it releases 543 J of energy is 478.4g.
How to calculate mass?The mass of a substance that underwent release of energy can be calculated using the following formula:
Q = mc∆T
Where;
Q = quantity of heat absorbed or releasedm = massc = specific heat capacity∆T = change in temperature543 = m × 0.227 × 5
543 = 1.135m
m = 543/1.135
m = 478.4g
Therefore, the mass of a sample of tin whose temperature decreases from 15.0°C to –10.0°C as it releases 543 J of energy is 478.4g.
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which natural method removes CO2 from the atmosphere
Answer:
carbon dioxide
Explanation:
it is used in photosynthesis
Q:- Calculate the number of ions of the following compound:- 16g of H₂CO3
Answer:
= 1.553 x 10²³ ions
Explanation:
One mole of a compound or a substance consists of 6.02 x 10²³ ions. 6.02 x 10²³ is also referred to as Avogadro's number/constant.
From the above question, we have been asked to determine the number of ions in 16g of H₂CO3.
The relative formula mass (RFM) of H₂CO3 is 62.026 u:
Derived as;
H₂CO3 = (2 x 1.008) + (12.01 x 1) + (3 x 16.00) u
= 62.026 u.
Number of moles = Mass/RFM
[tex]moles \: = \frac{16}{62.026} \\ = 0.2579563 \\ = 0.2580 \: moles[/tex]
1 mole = 6.02 x 10²³ ions
0.2580 moles = ?
=
[tex] = \frac{0.2580 \times 6.02 \times 10 ^{23} }{1} \\ = 1.553 \times {10}^{23} \: ions[/tex]
Hence the number of ions in 16g H2CO3 = 1.553 x 10²³
Determine the number of grams of carbon dioxide that can be formed from 0.500 grams of iron oxide and an excess of carbon.
Taking into account the reaction stoichiometry, 0.2066 grams of CO₂ are formed from 0.500 grams of iron oxide and an excess of carbon.
Reaction stoichiometryIn first place, the balanced reaction is:
2 Fe₂O₃ + 3 C → 4 Fe + 3 CO₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Fe₂O₃: 2 moles C: 3 molesFe:4 moles CO₂: 3 molesThe molar mass of the compounds is:
Fe₂O₃: 159.7 g/moleC: 12 g/moleFe: 55.85 g/moleCO₂: 44 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
Fe₂O₃: 2 moles ×159.7 g/mole= 319.4 gramsC: 3 moles ×12 g/mole= 36 gramsFe: 4 moles ×55.85 g/mole= 223.4 gramsCO₂: 3 moles ×44 g/mole= 132 gramsMass of CO₂ formedThe following rule of three can be applied: if by reaction stoichiometry 319.4 grams of Fe₂O₃ form 132 grams of CO₂, 0.500 grams of Fe₂O₃ form how much mass of CO₂?
[tex]mass of CO_{2} =\frac{0.500 grams of Fe_{2}O_{3}x132 grams of CO_{2} }{319.4 grams of Fe_{2}O_{3}}[/tex]
mass of CO₂= 0.2066 grams
Then, 0.2066 grams of CO₂ are formed from 0.500 grams of iron oxide and an excess of carbon.
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