The molar mass of calcium is 40,078 g.
40,078 g------------------------1 mol
8 g---------------------------------x
x = 8/40,078 = 0,2 moles
The number of grams in 9,0 moles of calcium metal is 360,7 g.
42,5 grams calcium is equivalent to 1,06 moles.
5000 grams calcium (1 mole Ca/40.08 grams) = 124.75 moles Calcium
120 grams of calcium contain 2,994 moles.
72
To calculate the number of moles from grams, you must divide by the substance's molar mass
126 grams calcium (1 mole Ca/40.08 grams) = 3.14 moles of calcium ------------------------------
To calculate the number of moles in a sample, divide the mass of the sample by the molar mass of the compound. The molar mass of calcium sulfate is calculated by adding the atomic masses of calcium, sulfur, and four oxygen atoms: Ca = 40.08 g/mol S = 32.06 g/mol O = 16.00 g/mol Molar mass of calcium sulfate = (40.08 g/mol) + (32.06 g/mol) + (4 × 16.00 g/mol) = 136.14 g/mol Now we can calculate the number of moles in 54.0 grams of calcium sulfate: Number of moles = mass (g) / molar mass (g/mol) = 54.0 g / 136.14 g/mol = 0.397 moles (rounded to three decimal places)
7,68 grams of calcium nitride is equal to 0,052 moles.
Yes
0,27 moles of calcium contain 10,82 g calcium.
3 moles of calcium is equivalent to 120,234 g.