arryfordancait arryfordancait

01-01-2016
Chemistry

contestada

The percent by mass of calcium in the compound calcium sulfate(CaSO4 ) is approximately
(1) 15% (3) 34%(2) 29% (4) 47%

Respuesta :

Billymkhoi Billymkhoi

01-01-2016

We already know that the molar mass of Ca is 40.08 g/mol, of S is 32.07 g/mol, of O is 16 g/mol.

(40.08 g/mol)/ (40.08 g/mol+ 32.07 g/mol+ 4* 16 g/mol)* 100%= 29.44%

The correct answer is (2) 29%.

Hope this helps~

Answer Link

Otras preguntas

Another name for the National Socialist Party was

Which type of ion most likely will be formed by group 16 elements of the periodic table?

Highest common multiple of 8 and 14

What is vice presidential role in running on a ticket?

how did the boston massacre socially have an impact on americans

Exercises that improve cardiovascular fitness improve body composition, because they.

which is greater a bottle containing 64 fluid ounces or bottle containing two liters of water

What influences the Earth's tides and climate? A. Moon B. Mars C. the Milky Way D. Venus

8% of what number is 16

Suppose a bill has passed both the House and the Senate. It goes to the president at the beginning of the annual session of Congress. The president doesn't sign