Atomic weight of hydrogen is 1,008.
Atomic weight of oxygen is 15,999.
The sum is the molar mass of H2O: 18,015 g.
And 7 H2O is 126,105 g.
1. Find the molar mass (MM) of the substances.MM FeSO4 = 151.91g+MM 7H2O = 126.11gMM FeSO4 x 7H2O = 278.02g2. Find the percent water of hydrate.Divide the mass of water by the mass of the hydrate; multiply result by 100%.126.11g278.02g x 100%Percent water of FeSO4 * 7H2O is 45.36%.Finding Molar Mass# atoms Element A x atomic mass Element A = Mass A# atoms Element B x atomic mass Element B = Mass B... etc.Add up all the mass values for the substance and you have the molar mass of the substance.
To calculate the percent by mass of each compound, you need to know their molar masses. For CuSO4•5H2O (copper(II) sulfate pentahydrate), the molar mass is 249.68 g/mol. For MgSO4•7H2O (magnesium sulfate heptahydrate), the molar mass is 246.47 g/mol. Now, divide the molar mass of each compound by the sum of the molar masses of both compounds and multiply by 100 to get the percent by mass. This will give the percentage composition of each compound within the mixture.
The formula of the hydrated form is MgSO4·7H2O. To find this, calculate the molar mass of MgSO4 (120.37 g/mol) and compare it to the molar mass of MgSO4·7H2O (246.47 g/mol). The difference in mass represents the mass of water lost upon heating, which is 126.1 g/mol (246.47 g/mol - 120.37 g/mol). Dividing the mass of water lost by the molar mass of water (18.015 g/mol) gives us the number of water molecules in the hydrated form.
To find the moles of As in Na2HAsO4.7H2O, you would first calculate the molar mass of Na2HAsO4.7H2O, then divide the molar mass of As by the molar mass of Na2HAsO4.7H2O to find the moles of As.
To find the molar mass of an atom, you need to add up the atomic masses of all the atoms in its chemical formula. This can be determined from the periodic table. The unit for molar mass is grams per mole.
1. Find the molar mass (MM) of the substances.MM FeSO4 = 151.91g+MM 7H2O = 126.11gMM FeSO4 x 7H2O = 278.02g2. Find the percent water of hydrate.Divide the mass of water by the mass of the hydrate; multiply result by 100%.126.11g278.02g x 100%Percent water of FeSO4 * 7H2O is 45.36%.Finding Molar Mass# atoms Element A x atomic mass Element A = Mass A# atoms Element B x atomic mass Element B = Mass B... etc.Add up all the mass values for the substance and you have the molar mass of the substance.
The compound NiSO4·7H2O consists of one NiSO4 molecule and seven water molecules. The percentage of water can be calculated by dividing the molar mass of water by the molar mass of the whole compound, and then multiplying by 100. This results in about 37.2% water in NiSO4·7H2O.
Nickel carbonate is NiCO3 with the molar mass 118,7 g.
To calculate the percent by mass of each compound, you need to know their molar masses. For CuSO4•5H2O (copper(II) sulfate pentahydrate), the molar mass is 249.68 g/mol. For MgSO4•7H2O (magnesium sulfate heptahydrate), the molar mass is 246.47 g/mol. Now, divide the molar mass of each compound by the sum of the molar masses of both compounds and multiply by 100 to get the percent by mass. This will give the percentage composition of each compound within the mixture.
The formula of the hydrated form is MgSO4·7H2O. To find this, calculate the molar mass of MgSO4 (120.37 g/mol) and compare it to the molar mass of MgSO4·7H2O (246.47 g/mol). The difference in mass represents the mass of water lost upon heating, which is 126.1 g/mol (246.47 g/mol - 120.37 g/mol). Dividing the mass of water lost by the molar mass of water (18.015 g/mol) gives us the number of water molecules in the hydrated form.
To find the percent of oxygen by mass in a compound, you need to know the molar mass of the compound and the molar mass of oxygen. Divide the molar mass of oxygen by the molar mass of the compound and multiply by 100 to get the percentage.
Molar mass is a term applied for molecules, not for atoms.
to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu) to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu)
no youre thinking of molar mass and atomic weight although you use avogadro's number to find molar mass
To find the moles of As in Na2HAsO4.7H2O, you would first calculate the molar mass of Na2HAsO4.7H2O, then divide the molar mass of As by the molar mass of Na2HAsO4.7H2O to find the moles of As.
To find the molar mass of the nonelectrolyte compound, we need to use the formula: Molar mass (mass of compound / moles of compound) First, we need to find the moles of the compound by using the formula: moles mass / molar mass Given that the mass of the compound is 4.305 g and it is dissolved in 105 g of water, we can calculate the moles of the compound. Next, we can find the molar mass of the compound by rearranging the formula: Molar mass mass / moles By plugging in the values, we can calculate the molar mass of the nonelectrolyte compound.
Yoy need to know the molar mass of this solute and the mass of the solute:moles = total mass/molar mass