The atomic weight of calcium is 40,078 g.
The molar mass of CaSO4 is 136.14 g/mol. The molar mass of Ca in CaSO4 is 40.08 g/mol. To find the percent composition of Ca by mass, divide the molar mass of Ca by the molar mass of CaSO4 and multiply by 100. This gives a percent composition of approximately 29.4%.
The molar mass of Ca(BrO3)2 (calcium bromate) is 343.898 g/mol.
To calculate the mass of Ca(OH)2 required to have 10g of calcium, first determine the molar mass of Ca(OH)2 (74.1 g/mol). Since calcium accounts for 40% of the mass in Ca(OH)2, the mass of Ca in 10g Ca is 4g. Using the molar ratio (Ca:Ca(OH)2) to find the mass of Ca(OH)2 required, the answer is 60g.
40 g / 56 g X 100%
The molar mass of CaBrO3 is calculated by adding the atomic masses of the individual elements. Ca (calcium) has a molar mass of 40.08 g/mol, Br (bromine) has a molar mass of 79.90 g/mol, and O (oxygen) has a molar mass of 16.00 g/mol. Therefore, the molar mass of CaBrO3 is 40.08 + 79.90 + (3 x 16.00) = 167.08 g/mol. When there are 2 CaBrO3, you would multiply the calculated molar mass by 2 to get the molar mass of CaBrO3 2, which would be 334.16 g/mol.
The molar mass of CaSO4 is 136.14 g/mol. The molar mass of Ca in CaSO4 is 40.08 g/mol. To find the percent composition of Ca by mass, divide the molar mass of Ca by the molar mass of CaSO4 and multiply by 100. This gives a percent composition of approximately 29.4%.
1.15 (g CaCO3) / 100.1 (g/mol CaCO3) =1.149*10-2 (mol Ca)1.149*10-2 (mol Ca) = 1.149*10-2 (mol Ca) * 40.08 (g/mol Ca) = 0.4604 g Ca0.4604 g Ca = 0.4604 g Ca / 2.70 g Supplement = 0.1705 * 100% = 17.1% Calcium (m%)
The molar mass of Ca(BrO3)2 (calcium bromate) is 343.898 g/mol.
No, this statement is incorrect. The molar mass of CaCO3 (calcium carbonate) is 100.09 g/mol, while the molar mass of Ca(NO3)2 (calcium nitrate) is 164.08 g/mol. Therefore, the molar mass of Ca(NO3)2 is greater than that of CaCO3.
The molar mass of calcium acetate is approximately 142 g/mol.
To calculate the mass of Ca(OH)2 required to have 10g of calcium, first determine the molar mass of Ca(OH)2 (74.1 g/mol). Since calcium accounts for 40% of the mass in Ca(OH)2, the mass of Ca in 10g Ca is 4g. Using the molar ratio (Ca:Ca(OH)2) to find the mass of Ca(OH)2 required, the answer is 60g.
40 g / 56 g X 100%
295.88 g/mol
The molar mass of CaBrO3 is calculated by adding the atomic masses of the individual elements. Ca (calcium) has a molar mass of 40.08 g/mol, Br (bromine) has a molar mass of 79.90 g/mol, and O (oxygen) has a molar mass of 16.00 g/mol. Therefore, the molar mass of CaBrO3 is 40.08 + 79.90 + (3 x 16.00) = 167.08 g/mol. When there are 2 CaBrO3, you would multiply the calculated molar mass by 2 to get the molar mass of CaBrO3 2, which would be 334.16 g/mol.
The mass of a 10 mmol solution will depend on the molar mass of the solute. To calculate the mass, multiply the number of moles (10 mmol) by the molar mass of the solute in grams/mole.
You ca calculate the molar mass for an anhydrous compound or for the hydrated forms; it is your choice and depends on the available reagent.
The mass of 6.02 x 10^23 atoms of calcium (Ca) is approximately 40.08 grams. This atomic mass value is based on the molar mass of calcium, which is 40.08 g/mol.