what is the gram formula mass of NazC03

Answers

Answer 1

Answer:

84,007 g/mol

Explanation:

Molar mass of NazCO3 which is Sodium Bicarbonate (NaHCO₃) is 84,007 g/mol


Related Questions

please help! qqqqqqqq

Answers

Answer:

sorry Hindi ko po alam ang sagot

how many moles of o2 are needed to react with 2.60 moles c2h2

Answers

Answer:  6.50 moles of O

Explanation:

To determine the moles of O₂ needed, we have to know in what ratio the two reactants react and then use the moles of C₂H₂  in reaction to determine the moles of O₂  needed. We can find this out based on their coefficient in a balanced equation:

Write a Balance Equation

2C₂H₂  +   5O₂   →     4CO₂   +   2H₂O

Compare the Mole Ratio (Equation Coefficient of C₂H₂  to  O₂)

Based on the equation, the mole ratio of C₂H₂  to  O₂  is 2 to 5. Therefore for every molecule of C₂H₂, ⁵/₂ C₂H₂ molecules are needed to react.

Find the moles of O₂

Since the number of moles of  C₂H₂   =    2.60 moles

                                then moles of O₂ = 2.60 moles × ⁵/₂

                                                     =  6.5 moles∴ 6.5 moles of O₂ is needed to completely react with 2.60 moles of C₂H₂.

8. Calculate density and record it in Table 1for each of the minerals. (Make sure to use the correct significant figures)

Answers

Answer:

.....

Explanation:

BECAUSE ....

Name the form of carbon used for absorbing poisonous gases and purification of noble gases​

Answers

Activated carbon, also called activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.

True or False. Weather describes the atmospheric events that occur each day & climate is the average weather pattern in an area over many years.

Answers

Answer:

true

Explanation:

Answer:

» True

Explanation:

Weather refers to short-term changes in the atmosphere of each day ,

Climate describes what the weather is like over a long period of time in a specific area. Different regions can have different climates

Warm fronts are shown on weather maps as a line with blue triangles. *
A. True
B. False

Answers

Answer:

False

Explanation:

Refer to the picture for better understanding

Hope this helps :)

pls make brainliest :p

And have an amazing day <3

The prefix 'sub' means 'below'. Why are particles smaller than an atom called subatomic particles.

Answers

Answer:

Because they are smaller than an atom

Explanation:

please help! will give brainliest!!! match each of the terms on the right with the letters on the right.

Answers

28 is a
27 is f
26 is e

Provide a particle-level explanation for the relationship between pressure and temperature
when the alcohol is in the gas phase.

Answers

The conservation of energy allows finding the relationship between pressure and temperature is:

Pressure is directly proportional to the temperature of the alcohol in the gaseous state.

Pressure is defined by the relationship between force and area of ​​application.

         P =[tex]\frac{F}{A}[/tex]

Where P is the pressure, F is the force and A is the area.

In the case of alcohol in the gaseous state, the mechanical energy of the molecules is only kinetic energy, it is related to temperature by the Boltzmann equation.

             Em = K = [tex]\frac{3}{2}[/tex] kT

            ½ m v² = 3/2 k T

              v² = [tex]\frac{3 k T}{m}[/tex]  

Where m is the mass, v the velocity of the particles, k the Boltzmann constant and T the absolute temperature.

From this equation we see that as the temperature increases, the speed of the alcohol molecules also increases.

Using the relationship between the impulse and the change of momentum we can find the mean force.

               I = F t = Δp

Where I impulse, F is the force, t is the time, Δp is the change of momentum.

if we assume elastic collisions the amount of initial and final moment are equal.

               [tex]F = \frac{2p}{t} \\F = \frac{2m}{t} v[/tex]

If we assume that the molecules go at a constant speed.

              v = d / t

              t = d / v

Let's substitute.

               [tex]F = \frac{2m}{d} v^2[/tex]

               

We substitute in the pressure equation.

               P = 2m / Ad v²

                [tex]P = \frac{6k}{ A d} \ T[/tex]

In conclusion using the conservation of energy we can find the relationship between pressure and temperature is:

Pressure is directly proportional to the temperature of the alcohol in the gaseous state.

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Hydrochloric acid has the
chemical formula HCI. Does this
information make you think that
hydrochloric acid is an element,
compound, or mixture

Answers

Answer:

its a mixture

Explanation:

I can't explain why

How could understanding the unified structure of atoms help you better understand an element that was unfamiliar to you?

Answers

Answer:

Well,You have to understand pretty much everything, If you know the number of protons or electron then you will know its atomic number,and if you know the number of protons and neutrons then you will know the mass of the element. so, once you grasp these concepts, you can better understand new elements.Explanation:

How many atoms are in 1.00 moles of lithium? __ atoms Li

PLEASE ANSWER:)

Answers

Answer:  6.022 × 10²³

Explanation:

Avogadro's Number (6.022 × 10²³ atoms/mole) is the number of atoms in any mole of a substance.

WILL MARK AS BRAINLIEST IF CORRECT


1) How do valence electrons impact the type of bonds an atom makes?(1 point)
a. A large number of valence electrons means the atom will share electrons; a small number of valence electrons leads to transferring from one atom to another.
b. An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.
c. An atom wants an empty outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.
d. A small number of valence electrons means the atom will share electrons; a large number of valence electrons leads to transferring from one atom to another.

2) Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use “–” to represent a single bond and “=” to represent a double bond.)(1 point)
a. C–O–O
b. C=O–O
c. O=C–O
d. O=C=O

3: Methane’s chemical formula is CH4. Is there a bond between any of the hydrogen atoms? Why or why not?(1 point)
a. Yes, there is because they form a long chain in order to all have stable outer energy shells.
b. No, there is not because it would form H2 instead of methane if hydrogen bonded with itself.
c. No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond.
d. Yes, there is because there are one too many hydrogen atoms for carbon to handle alone, so one hydrogen must bond with another.

4: In hydrogen peroxide (H2O2), which option best shows how the atoms are ordered?(1 point)
a. O–H–O–H
b. H–O–O–H
c. O–H–H–O
d. H–O–H–O

Answers

Answer:

1. How many electrons does hydrogen need in order to have a full shell of valence electrons?...two

2. How do valence electrons impact the type of bonds an atom makes?...An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.

3.Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use “–” to represent a single bond and “=” to represent a double bond.)...O=C=O

4. Methane’s chemical formula is CH4. Is there a bond between any of the hydrogen atoms? Why or why not?...No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond.

5. In hydrogen peroxide (H2O2), which option best shows how the atoms are ordered?...H-O-O-H

Explanation:

Valence electrons are found on the outermost shell of an atom and determines the kind of bonds the atom can form.

When an atom has a large number of valence electrons, it is energetically more favorable for the atom to share electrons rather than to transfer electrons to another atom. Atoms with less valence electrons transfer electrons from one atom to another.

Since carbon is a member of group 14 and oxygen is a member of group 16, it follows that carbon can share four electrons with two oxygen atoms as shown in the structure O=C=O.

Carbon is always tetravalent in all its compounds. This means that one carbon atom must form four bonds. It follows that the carbon atom in CH4 forms four bonds with the four hydrogen atoms hence there are no bonds between hydrogen atoms in CH4.

H2O2 contains the peroxide (O-O) bond. It follows that its correct structure must be H–O–O–H.

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Which correctly explains the relationship between predators and prey?

when the number of prey increase the number of predators will increase

when the number of prey decrease, the number of predators will increase

when the number of prey increase, the number of predators will decrease
BRAINLIESTTT​

Answers

Answer:

When the number of prey increase the number of predators will increase.

Explanation:

This is because the predators have more food available, which will make their population grow.

if you think about similarities between elements instead of differences, how can that make understanding matter a little bit easier?

Answers

Understanding the unified structure of atoms helps you better understand an element that was unfamiliar because just by knowing the structure of the atom you can get a basic idea of the element.

if you were able to know the number of protons, electrons, and neutrons you would be able to know the atomic number and mass of the unfamiliar element.

understanding the unified structure of the atoms allows a person to understand why this element has the properties it has and is able to learn more about the element by conducting certain tests to see how the electrons,protons, and neutrons act.

understanding the unified structure of atoms allows you to better understand the unfamiliar element because you have a better understanding of what makes up the unfamiliar elements and the structure of the element.

by understanding the unified structure of atoms you can learn more about the overall structureand reactivity of the element by understanding the structure of the atoms within the element.

What do polar compounds and ionic compounds have in common?

Answers

Answer:

In what way is a polar-covalent bond similar to an ionic bond? There is a difference between the electronegativities of the two atoms in both types of bonds that results in electrons being more closely associated with the more electronegative atom.

Explanation:

haz un mapa conceptual y explique con imagenes las formas , estructuras y tipos de celulas vegetales que existen en la naturaleza.

Necesito ayuda es para hoy.

Answers

Answer:

Si

Explanation:

A popular radio station broadcasts with a frequency of 92.7 MHz. What is the wavelength of the broadcast?

Answers

1/f=wavelength
f=92.2*1000000 (convert to hertz)
1/92200000=1.085*10raised to the power of -5

The metal thallium occurs naturally as 30% thallium -203 and 70% thallium-205 calculate the atomic mass of thallium​

Answers

Answer:

204.4 amu.  

Explanation:

30% of thallium will be multiplied by the mass number of thallium-203(203). 70% thallium will be multiplied by the mass number of thallium-205(205).

Then you will add them up.

So, (0.30x203) + (0.70x205) = 204.4 amu.

The metal thallium have two isotopes with different masses. The average atomic mass of thallium is 204.4.

What is isotopes?

Isotopes are atoms with same atomic number and different mass number. For example hydrogen have three isotopes namely proton, deuteron and triton with masses 1, 2 and 3 au respectively.

The average atomic mass of an atom can be calculated from the percentage abundance and masses of its isotopes as given below:

atomic mass = ∑ (% abundance/100) mass

The mass of metal thallium is calculated as follows:

Atomic mass of  thallium = [tex][\frac{30}{100}\times 203] + [\frac{70}{100}\times 205]= 204.4[/tex]

Hence, the average atomic mass of thallium is 204.4 au.

To learn more about isotopes, refer the link below:

https://brainly.com/question/21536220

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used by rutherford in his experiment; made of two protons and two neutrons

Answers

2 protons and two neutrons is helium

the basic principles of atomic theory were first conceived by:

Answers

The ancient atomic theory was proposed in the 5th century bc by the Greek philosophers Leucippus and Democritus and was revived in the 1st century bc by the Roman philosopher and poet Lucretius.

(a) Given that density is usually expressed in the units of g/cm3
, calculate the density of a cube of plastic that
has a mass of 2.331 g and an edge length of 1.500 cm (volume of a cube is V = l^3).
(explain/or do density(calculate it) find volume first. then show work of density divided by volume give proper units.) (Density is a physical property of a molecule that’s measured as mass per unit volume.) (Measurement in chemistry. Think about the density of different substances. PLEASE SHOW WORK)

Answers

Answer:

0.690g/cm^3

Explanation:

•Mass: 2.331g

•Volume: 3.375 cm^3

One side is 1.5cm.

1.5^3

3.375cm^3

•Density: Mass/Volume

Mass = 2.331g

Volume = 3.375cm^3

2.331g/3.375cm^3

0.690g/cm^3

Density: 0.690g/cm^3

What is the correct ratio of coefficients to balance this chemical equation? 8 1:12 01:2:13 O 1-2-3 thing 0 2:43​

Answers

Answer:

2:4:3

Explanation:

The coefficient to balance this chemical equation is 2:4:3

Answer: very important

Explanation: where did u get this worksheet from

What is the mass of 15.0 moles of gold?

Answers

Answer:This Should Be the Answer :)

Explanation:

iven: Molar mass of Au = 196.96 g/mol. The Number of moles = 15.3 moles. Hence, 15.3 moles of Au contains 3.01 103 g of Au.

Pick 1 plz.....................

Answers

Answer:

your answer should be B ANDC

Answer:

B and c is your answer

Explanation:

9. An element Q with electronic configuration 2.8, 2 reacts with elements R. with electronic configuration 2, 8, 7 to form an ionic compound. The likely formula of this compound is:​

Answers

Answer:

QCl2

Explanation:

Q should belong to group 2 so valency is 2

R should belong to group 17 so valency is 1

25. In the formula for a molecular compound, which atom generally comes first? You may went
to refer to a periodic table.

Answers

Answer:

For organic compounds, carbon and hydrogen are listed as the first elements in the molecular formula, and they are followed by the remaining elements in alphabetical order. For example, for butane, the molecular formula is C 4 H 10.

Explanation:

for a neutralization reaction, would you expect the magnitude of q to increase, decrease, or stay the same if the concentration of only the acid were doubled? why?

Answers

For a neutralization reaction, the value of q(heat of neutralization) is doubled when the concentration of only the acid is doubled.

A neutralization reaction is a reaction in which an acid reacts with a base to yield salt and water. Ionically, a neutralization reaction goes as follows; H^+(aq) + OH^-(aq) ------> H20(l).

The heat of neutralization (Q) of the system depends on the concentration of the solutions. Since Q is dependent on concentration, if the concentration of any of the reactants is doubled, more heat is evolved hence Q is doubled.

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Answer:

Stay the same

Explanation:

If only the concentration of acid were doubled no additional neutralization reaction would occur

HELP PLEASE ANSWER THIS QUESTION

what are 4 ways carbon effects the earth

Answers

Greenhouse effect/climate change
Plant and crop life
Human and animal health
Oceans

Why can't molecules have thermal energy?​

Answers

Answer:

Thermal Energy, also known as random or internal Kinetic Energy, due to the random motion of molecules in a system. Kinetic Energy is seen in three forms: vibrational, rotational, and translational. Vibrational is the energy caused by an object or molecule moving in a vibrating motion, rotational is the energy caused by rotating motion, and translational is the energy caused by the movement of one molecule to to another location.

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