42,5 grams calcium is equivalent to 1,06 moles.
425 g calcium (Ca) is equal to 10,604 moles.
To calculate the number of moles of calcium in 425 g, you need to divide the given mass by the molar mass of calcium. The molar mass of calcium is approximately 40.08 g/mol. moles = 425 g / 40.08 g/mol ≈ 10.61 moles of calcium.
The answer is 1.35 moles.425 g of UF4 would be 1.35 moles.
425 grams is 0.936965 pounds.
425 grams is 425,000 milligrams.
425 grams = 0.937 pounds, approx.
1000 grams = 1 kilogram so 425 grams = 0.425 kg. Simple!
14.928 ounces
That is 14.991 ounces
A cup of flour is about 125 grams. 400 grams is therefore about 3.1 cups. 425 grams is about 3.4 cups. You might be ok with about 3 and a quarter cups. But adjust as needed.
0.425 Kg. A gram is a thousandth of a kilogram, so 425 grams is 425/1000 of a kilogram.
Let us find moles first. Molarity = moles of solute/Liters of solution ( 750 ml = 0.750 Liters ) 0.375 M Na2SO4 = moles Na2SO4/0.750 Liters = 0.28125 moles Na2SO4 =================== 0.28125 moles Na2SO4 (142.05 grams/1 mole Na2SO4) = 39.95 grams Na2SO4 needed ---------------------------------------you do significant figures!