What is the molar mass of Ba3(PO4)2?

Answers

Answer 1

Answer:

601.93 g/mol

explanation:

Problem: The Ba3(PO4)2 (molar mass = 601.93 g/mol) precipitate that formed from a salt mixture has a mass of 0.667 g.

Answer 2

The molar mass of barium phosphate is 601.93 g/mol.

What is molar mass?

Molar mass is defined as the mass of a compound divided by the number of moles which is the amount of substance .It is a bulk quantity and not a molecular property of a substance . They are mostly calculated by adding the atomic masses of constituent elements in a compound.

It is an average of many particles or molecules.Molar mass is an intensive property as it does  not depend on size of the sample.It has units of kg/mol. Molar masses of elements is given by relative atomic mass of element whereas that of compounds is given by the sum of relative atomic mass multiplied by the molar mass constant.

They are never measured directly , they are measured from the standard atomic masses.

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Related Questions

Balance the following equations:C(s) +CO2(g)- CO(g)

Answers

Answer:

C(s)+CO₂(g)→2CO(g)

Explanation:

Basically you’re adding the compounds until they’re equal on both sides

true or false:
1. chemical bonds have only one form.
2. All compounds are neutral.
3. covalent bonds do not exhibit any sort of preferential charge between atoms.
4. a covalent bond can only involve one shared electron.

Answers

I think this maybe false

What is the volume of 4.78g of O2 gas at STP?

Answers

Answer:

Explanation:

The trick here is to realize that if you know the volume of a gas at STP, you can use the fact that

1

mole of any ideal gas occupies

22.7 L

under STP conditions to calculate how many moles of gas you have in your sample.

Under STP conditions:

1 mole of an ideal gas = 22.7 L

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

In your case, you know that your sample of gas occupies

2.28 L

under STP conditions, which are currently defined as a pressure of

100 kPa

and a temperature of

0

C

.

This means that your sample will contain

2.28

L

molar volume of a gas at STP



1 mole gas

22.7

L

=

0.10044 moles gas

Now, the molar mass of the gas is the mass of exactly

1

mole of the gas. In your case, you know that you get

3.78 g

for every

0.10044

moles, which means that you have

1

mole

3.78 g

0.10044

moles

=

37.6 g

Since this is the mass of

1

mole of gas, you can say that the molar mass of the gas is

molar mass = 37.6 g mol

1

−−−−−−−−−−−−−−−−−−−−−−−

i’m not surreeeeeeeeeee

How many atoms are in 4.1 grams of zinc?

Answers

Answer:

1 mole of zinc has 6.023 x 1023 atoms

So, 4.1 moles will have 4.1 x 6.023 x 1023 atoms = 24.694 x 1023 atoms

Explanation:

80g of calcium reacts with water to form 114g of calcium hydroxide and 2g of
hydrogen.
2 Ca + 2 H0+2CaOH + H,
What mass of water was used in this reaction?​

Answers

Answer:

31g

Explanation:

80g(Ca)+m(H2O)=114g(CaOH)+2g(H2)

the total mass of the prodicts doesn't change throughout the process

80g+m(H20)=116g

m(H20)=31g

As stars get older, before they collapse, they throw off dust, heavy atoms and other materials an form a new

A. Constellation
B. Star
C. Rain cloud
D. Nebula

Answers

Answer:

B or D

Explanation:

.....I'm pretty sure I earned on some kids tv show

D I’m pretty sure sorry if it’s not right

Scientists often look at how much isotopes of ______
have decayed to help estimate the age
of a fossil or once-living material.

Answers

Answer:

If im correct it’s radioisotope

Explanation:

Scientists often look at how much of isotopes of : Carbon-14  have decayed

To determine the age of fossils archeologist make use of the carbon-14 dating ( i.e. making use of naturally occurring radioisotope ¹⁴C ) which is used to determine the age of fossils or material that were once in living on earth.

Carbon has about three (3) isotopes ( Carbon-12, Carbon-13 and Carbon-14 ) .but Carbon-14 isotope is most useful in determining the age of fossils and once-living things

Hence we can conclude that scientists often look at how much of isotopes of Carbon-14 have decayed to help estimate the age of fossils.

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Write your explanation on how plants
nake their own food?
imnortont bynroduct of

Answers

Answer:

photosynthesis  are ligt water and carbon dioxide

Explanation:

Plants make their own food out of inorganic compounds through a process called photosynthesis that takes place in the leaves. The ingredients necessary for photosynthesis are light, water and carbon dioxide.

help me please asap ...........................................

Answers

3. The Chemical property of an unknown element is the number of valence electrons
4. The number of protons in one atom of an element
Hope I helped :))

Is a cell wall found in a plant cell?

Answers

Answer:

A plant cell has a cell wall but an animal cell dosnt have one

Explanation:

Brainliest plz

Explanation:

the cell wall surrounds the plasma membrane of the plant and provides tensile strength and protection against mechanical

If you could repeat the lab and make it better, what would you do differently and why?

There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.

Answers

Hello, 3Coli Here!

Your Answer is Here:

I would recheck, redo, and revise my answers, if necessary. Also, I can look at the lesson again, if I forgot something. So that's what I would do.

Hopefully, this helps!

Ask your question below!

Answer:

I will just revise and check my answer, or I can redo the lesson.

Explanation:

Have a good day! :D

0.385g of 17Cl is how many atoms?

Answers

Answer:

(Click here to get an answer to your question ✍️ 0.385g of 17Cl is how many atoms?).

Explanation:

Which among the following will make lime water look milky?Immersive Reader
(1 Point)
O₂
CaCO₃
Ca(OH)₂

Answers

Which among the following will make lime water look milky

option C) Ca(OH)₂

PLZ HELP ME IM FAILING!

Everything you need to know about the question is on the photo

Answers

Answer:

C. NH₄Cl

Explanation:

The compound with the element ratio 1 : 4 : 1 from the given choices is NH₄Cl.

An element is a pure substance made up of distinct number of atoms. Elements are unique and are different from other elements because of the nature of their atoms.

We often delineate an element using chemical symbols.

   In the compound NH₄Cl;

There are 3 elements:

           Number of atoms

N                      1

H                      4

Cl                     1

How can you figure out how much energy your body gets from the food you eat and drink in a day?

Answers

It gets all the energy from food food is every important

Answer: So to figure out your energy balance you need to gather some important information.  That is, you eat more calories than your body uses. A kilojoule is a calorie) is a measure of energy in food. On average, people eat and drink around 8700 kilojoules a day.

Explanation: I hope that helped- Please mark me as brainliest!

Can someone help me please but on those two questions

Answers

Answer:

In first mcq correct option is "solid"  while in 2nd correct is "gas"

Explanation:

Which of the following is true for an excess reactant?

A) It is the reactant whose atoms remain unbalanced in the equation.
B) It is the reactant that produces a smaller amount of a product.
C) It is the reactant that is left over after the reaction stops.
D) It is the reactant that produces one mole of a product.

Answers

Answer:

C) It is the reactant that is left over after the reaction stops.

Explanation:

The excess reactant is the reactant that is left over after the reaction stops. The extent of the reaction is not determined by this reactant.

A limiting reactant is a reactant that is in short supply within a given reaction.

Such reactants determines the extent of chemical reaction.

Limiting reactants are used up in a chemical reaction. The excess reactants remains unchanged after the reaction.

Answer: C) It is the reactant that is left over after the reaction stops.

Explanation:

how do i caculate the trmperature change that 725 grams of aluminum will undergo when 2.35x10^4 Joules of thermal energy are added to it?

Answers

Answer:

36°C

Explanation:

Given parameters:

Mass of aluminum = 725g

Quantity of heat  = 2.35 x 10⁴J

Unknown:

Temperature change  = ?

Solution:

To solve this problem, we simply use the expression below:

  The quantity of energy is given as:

          Q  = m C Δt

Q is the quantity of energy

m is the mass

C is the specific heat capacity of aluminum  = 0.9J/g°C

Δt is the change in temperature

  The unknown is Δt;

             Δt  = [tex]\frac{Q}{mc}[/tex]    = [tex]\frac{2.35 x 10^{4} }{725 x 0.9}[/tex]    = 36°C

what is ore of iron ​

Answers

Iron ore are rock rocks

hope this helps

please mark as brainlist

Oxygen gas is at a temperature of 145 K when it occupies a volume of
1.45 Liters. To what temperature should it be raised to occupy a volume of 6.50
Liters? Show your work. (Express your answer in Kelvin)

Answers

Answer:650K

Explanation:

Answer: 650K (1.45/145 = 6.50/x)

Explanation:

Mixtures can be separated by physical processes.
A sequence of physical processes can be used to separate common salt (sodium chloride)
from a mixture containing sand and common salt only.
Give the order and the correct scientific term for the physical processes used to separate the
common salt from the mixture.

Answers

don't know sorry.........

You put two pots of water on the stove to boil. Both pots are the same size and are on the same size burner at the same heat setting, and one pot has twice as much
water as the other. Which one will boil faster? Why do you think that is?

Answers

Answer:

The emptiest one.

Explanation:

The more water, the more heat molucules have to turn to boil.

Have a great day!

Hope I helped and it would be greatly appreciated if you could be considerate and give brainliest.

At the end of which era did the dinosaurs became extinct?

Cenozoic

Jurassic

Mesozoic

Paleozoic

Answers

Answer:

Cretaceous Period

Explanation:

Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.

At the end of the Cretaceous Period

900 mL of water is added to 100 mL of a 0.1 M solution. What is the new concentration?
0.1M
0.001M
0.0001M
0.01M

Answers

Answer:

The new concentration of the solution is;

0.01 M

Explanation:

The question relates to concentration of solution and proportion of mixtures

The given parameters are;

The volume of water added to the 0.1 M solution = 900 mL

The initial volume of the solution to which water was added = 100 mL

Therefore, the total final volume of the solution = 100 mL + 900 mL = 1000 mL = 1 L

The concentration of the solution = 0.1 M

The number of moles present in the solution, 'n', is given as follows;

n = 100 mL/(1000 mL) × 0.1 M = 0.01 moles

Given that no more concentrated solution was added, we have;

The number of moles in the 100 mL solution   = The number of moles in the 1,000 mL solution

Therefore, the number of moles in the 1,000 mL (1 L) solution = 0.01 moles

Therefore;

The new concentration of the 1,000 mL (1 L) solution = 0.01 moles/(1,000 mL) = 0.01 moles/(1 L) = 0.01 M (By definition of the molarity of a solution)

The new concentration of the 1,000 mL (1 L) solution = 0.01 M.

D. 0.01 M

Given:

The volume of water added to the 0.1 M solution = 900 mL

The initial volume of the solution to which water was added = 100 mL

So,

The total final volume of the solution = 100 mL + 900 mL = 1000 mL = 1 L

The concentration of the solution = 0.1 M

Firstly we need to find the number of moles which is represented by 'n':

 [tex]n = \frac{100mL}{1000mL}* 0.1 M\\\\n = 0.01 \text{moles}[/tex]

 The number of moles in the 100 mL solution   = The number of moles in the 1,000 mL solution

Thus,

The number of moles in the 1,000 mL (1 L) solution = 0.01 moles  

For calculation of new concentration:

Using Molarity formula:

The new concentration of the 1,000 mL (1 L) solution [tex]= \frac{0.01\text{ moles}}{1000mL} = \frac{0.01\text{ moles}}{1L} = 0.01 M[/tex]

The new concentration of the 1,000 mL (1 L) solution = 0.01 M.

Thus, the correct option is D.

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"Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he placed the cup outside for several sunny days during the summer. After a week, he observed that only solid salt remained in the cup and the mass had decreased. Henry concluded that a physical and chemical change occurred in this investigation."

Which statements correctly defend or dispute his conclusion?

A.)He is correct. Dissolving salt in water is a physical change, but evaporating the water is a chemical change. Formation of a solid is evidence that a chemical change occurred.

B.)He is correct. Evaporation is a physical change, but dissolving salt in water is a chemical change. The change in mass is evidence that a chemical change occurred.

C.)He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.

D.)He is incorrect. Dissolving salt in water and evaporation of the water are both chemical changes. The reappearance of salt is evidence that the change was reversible by a chemical change, so it could not be a physical change.

Answers

Answer:

C.)He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.

Explanation:

From the analogy of the problem presented, we can see that Henry is grossly incorrect. His conclusion from the process of the experiment he carried out is completely wrong.

Physical changes are changes that alters the physical properties of matter particularly the form and state.

Chemical changes leads to the formation of a new kind of matter.

 We can see that since the salt was obtained back after evaporation, no change has occurred to it.

Therefore, evaporation in itself is a physical change process.

Answer:

c on ed

Explanation:

How many mols are in 6.73 x 1024 particles of Cu? A. 6.02 x 1023 mols of Cu B. 11.18 mols of Cu C. 1.12 mols of Cu D. 10 mols of Cu\

Answers

Answer:

B. 11.18 mols of Cu

Explanation:

Given parameters:

Number of particles in Cu  = 6.73 x 10²⁴ particles

Unknown:

Number of moles  = ?

Solution:

A mole of a substance is known to contain the Avogadro's number of particles. To solve this problem;

          6.02 x 10²³ particles is contained in 1 mole of a substance

         6.73 x 10²⁴ particles  will be contained in [tex]\frac{6.73 x 10^{24} }{6.02 x 10^{23} }[/tex]   = 11.18moles of Cu

Explanation:

Purpose and Theory: A tablet of vitamin C contains the active ingredient called ascorbic acid (HC,H,0.).

Ascorbic acid is an organic acid which is a white power and is soluble in water.

In the following microtitration lab you will be grinding up a vitamin C tablet

, and using a 0.10 g sample of the

vitamin C powder, which will be dissolved in 20-40 mL of water. This solution will be used to determine the

quantity of ascorbic acid in a commercial vitamin C tablet.

Groups

Lab 2

# of Drops 1 or Drops 2 of Drops 3

96

91

94

Hadia

Data & Analysis:

Complete the missing information in the following data table [24]

1

2

3

Trial

Volume of NaOH (drops)

0 05mL drop

(NaOH (O 0050mol/L)

Volume of NaOH (ML)

Average Volume of NaOH (ml)

T I

O 0050

00050

00050

The balanced chemical reaction between ascorbic acid and sodium hydroxide is:

HC,H,O + NaOH NaC,H,Oye H,O,

1. Stoichiometrically calculate the mass (in grams) of ascorbic acid in the powdered sample. 

3. A sample of neon gas has a volume of 1.2 L at 28.5°C. What will the volume be at 125°C it the
pressure remains constant?

Answers

Answer:

1.58L

Explanation:

Given parameters:

Initial volume  = 1.2L

Initial temperature  = 28.5°C  = 28.5 + 273  = 301.5K

Final temperature  = 125°C  = 125 + 273  = 398K

Unknown:

New volume  = ?

Solution:

Volume and temperature relationship is resolved using the Charles's law.

The law states that "the volume of a fixed mass of a gas varies directly as its absolute temperature if the the pressure is constant".

So;

       [tex]\frac{V1}{T1}[/tex]    = [tex]\frac{V2}{T2}[/tex]  

V1 is the initial volume

T1 is the initial temperature

V2 is the new volume

T2 is the new temperature

             [tex]\frac{1.2}{301.5}[/tex]    = [tex]\frac{V2}{398}[/tex]    

              301.5V2  = 477.6

                       V2  = 1.58L

6.900x10^10 ÷ 4.000x10^8

Answers

Answer:

1.725e+18

Explanation:

when an ecosystem changes the results are (positive negative both or none) explain
This is science!

Answers

Answer:

C. Both

Explanation:

When an Ecosystem changes the effects can be both positive and negative. It all really just depends on what the change is.

PLEASE ANSWER 80 POINTS
Which response includes all of the following Z1) LiO2 + CO2 → Li2CO3 Z2) Cl2 + 2 NaBr → Br2 + 2 NaCl Z3) HNO3 + KOH → KNO3 + H2O Z4) SO3 + H2O → H2SO4 that are combination reactions, and none that are not combination reactions? 1. Z1 and Z4 only 2. Another reaction or another combination 3. Z1, Z3 and Z4 only 4. Z1 and Z2 only 5. Z1, Z2 and Z4 only

Answers

Answer:

z3 xCo2 + 75 = s01 + h20 = Z2

Explanation:

The study of chemicals is called chemistry.

The correct answer is A.

A combination reaction is defined as the joining of two different elements to form a new compound is called a combination reaction. A new compound is always formed in the reaction.

According to the question, in option A the [tex]Li_2Co_3[/tex] is formed and in reaction 4 [tex]H_2So_4[/tex] is formed.

Hence, the correct option is A that is Z1 and Z4.

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