# What is the formula mass of Ca3PO42?

The formula mass of Ca3(PO4)2 is 3(40.1) + 2[31.0 + 4(16.0)] = 310.3

The atomic masses of the individual elements can be obtained from the perodic table.

### What is the gram formula mass for Ca3PO42?

Ca = 40 x 3 = 120 grams P = 31 x 2 = 62 grams O = 16 x 8 = 128 grams Add them together and you have 310 grams. This is the mass in grams of your formula. It is expressed in grams/mole because 310 is the weight of one mole of Ca3(PO4)2.

### How many atoms is in one Ca3PO42?

CaPO4 calcium phosphate has 8 atoms Ca3PO42 does not exist. The Calcium ion has a charge of +2. the Phosphate ion has a charge of -3. Therefore the compound Calcium Phosphate will have the formula Ca3(PO4)2 Please note the brackets! This gives: three Ca two P eight O for a total of 13 atoms per molecule.

### Which of the following best describes how formula mass is related to the mass of a compound?

Formula mass represents the mass of an individual formula unit of a compound. Formula mass represents the mass of an individual formula unit of a compound. Apex lol

### What is the formula of the formula mass?

weight=gravitational field strength * mass? gram formula mass= mass/number of moles

### Which of the following best describes how molecular mass and formula mass are related to the mass of a compound?

Molecular mass and formula mass represent the mass of an individual molecule or formula unit of a compound.

### How do you get from emperical formula to molecular formula?

By determining the molecular mass, then dividing the molecular mass by the formula mass of the empirical formula to determine by what integer the subscripts in the empirical formula must be multiplied to produce the molecular formula with the experimentally determined molecular mass.

### What is the formula for mass if density is not given?

The formula for mass if density is not given is mass=volume/power

### What is formula for mass?

There is no formula for mass. it is simply the weight measured in grams

### What is the formula mass of sodium perchlorate?

Sodium Perchlorate is NaClO4. Since its molecular formula is its empirical formula, therefore its molecular mass is its formula mass. It is 122.44 g/mol

### What is formula mass?

Formula Mass is the average mass of a molecule calculated as the sum of the individual atomic masses.

### How to calculate Molecular formula from empirical formula?

If you know the molar mass of the compound, you have to calculate the mass of the empirical formula and divide the molar mass of the compound by the mass of the empirical formula in order to find the ratio between the molecular formula and the empirical formula. Then multiply all the atoms by this ratio to find the molecular formula!

### Mass Times Volume is a formula for what?

Mass times volume isn't a formula for anything. You may be confused with mass divided by volume, which is the formula for density.

### How does one determine a molecule formula from the empirical formula?

The density or some other information must be given that allow you to find the molar mass. Calculate the empirical formula mass. Divide molar mass by empirical formula mass. This answer is multiplied by all subscripts of the empirical formula to get the molecular formula.

### What is the relationship between the formula weight of a substance and its molar mass?

Molar mass is the mass of particles in one mole of a substance. Molar mass is equal to atomic/ molecular/ formula mass in amu. Formula mass is in atomic mass unit while molar mass is in grams .

### What is the formula for mass?

The formula for finding the mass of an object is density multiplied by volume.

### To determine the subscript of an element in a molecular formula the empirical mass must be multiplied by the actual mass?

The actual mass must be divided by the empirical mass. This was derived from the following equation: (subscript)(empirical formula) = (molecular formula) subscript = (molecular formula)/(empirical formula)

### What is the difference between formula mass and molecular mass?

The formula mass is used to express the mass of ionic compounds and molecular mass for the molecules or covalent compounds.

### What is Mass multiplied by volume?

Mass (M) x Volume (V) is not the formula for anything. Mass multiplied by Volume is the formula for density. Mass multiplied by velocity (speed with a direction) is the formula for momentum.

### What is the relative formula mass of nitrate?

The chemical formula is (NO3)-; the mass is 62 g.

### What is the formula mass for the compound K2CO3?

The formula mass for K2CO3 is 138.2055 g/mole.

### Is molecular formula molar mass?

No, but by knowing the molecular formula, the molar mass can be calculated.

### What is the mass formula for aluminum?

The formula mass of Al (molar mass) is 26.98 g/mol (standard atomic mass atomic 26.9815385 a.m.u.)

### The formula mass of a molecule orion is?

The formula mass of a molecule ion is (atomic mass carbon = 12.01). This is the sum of the atomic mass to the atomic species.

### How does one determine a molecular formula from the empirical formula?

molar mass over grams of element The above answer is somewhat correct. In order to find the molecular formula when given the empirical formula, you must first find the molar mass of the empirical formula. MOLAR MASS # atoms element A x atomic mass element A (periodic table) = mass A # atoms element B x atomic mass element B (periodic table) = mass B ... etc. Add up all of the mass values found… Read More

### What is the formula mass of barium flouride?

Barium fluoride is BaF2. Its empirical formula is BaF2 as well. Hence, its formula mass is same as its molecular mass i.e.175.34g/mol

### What is the formula mass and chemical formula for ammonium nitrate?

The chemical formula of ammonium nitrate is NH4NO3. The molecular mass is 80,052 g.

### What is the Formula Mass of Atomic Nitrogen?

The gram formula mass of atomic nitrogen is the same as the gram atomic mass of nitrogen: 14.0067.

### What is the formula for mass used in Physics?

mass = Force ___________ This formula is from Newtons second law. acceleration

### What is the formula mass ZnSO4?

AS Zn having atomic mass 65.38, S with atomic mass 32.066 and O with mass 16 so the formula mass of ZnSO4 is 161.446 amu

### The formula mass of a molecule or an ion is?

The formula mass of any molecule, formula unit, or ion is the sum of the average atomic masses of all atoms represented in its formula.

### What can make an object accelerate?

A force. Newton's formula: force = mass x acceleration. A force. Newton's formula: force = mass x acceleration. A force. Newton's formula: force = mass x acceleration. A force. Newton's formula: force = mass x acceleration.

### A compound has a molecular mass of 60 and empirical formula of ch3 what is the molecular formula?

Since carbon has an atomic mass of 12 and hydrogen has an atomic mass of 1, the mass of the empirical formula is 12 + 3 = 15. 60/15 = 4; therefore, the molecular formula is C4H12.

### What is relationship between the formula weight of a substance and its molar mass?

Formula mass is in atomic mass unit (amu) while molar mass is in grams (g). Molar mass is the amount of particles (atoms/molecules) in one mole of a substance. Molar mass is equal to atomic/ molecular/ formula mass in u.

### What is the formula mass of CO2?

Formula mass of CO2 =atomic mass of C+2(atomic mass of O) =12+2(16)=12+32=44

### What is the formula mass for the ammonium ion?

The chemical formula of the ammonium ion is NH4+. Formula mass of NH4+ = 14.0 + 4(1.0) = 18.0

### What is the formula for finding the mass of an object?

To find the volume of an object use the formula v=dm where Volume=Density x Mass To find the mass of an object use the formula m=dv where Mass=Density x Volume