Question

N(H2SO4)=0,2 моль.m(CaSO4)=?​

Answer 1

Ответ:

m(CaSo4) =27, 2

Объяснение:

n(H2SO4) =n(CaSO4) =0,2 моль

M(CaSO4) =136г/моль

m(CaSO4) =0, 2моль×136г/моль=27, 2г

Ответ:27, 2г

Answer 2

To find the molar mass of CaSO4 (calcium sulfate), we'll need to add up the molar masses of its constituent elements: calcium (Ca), sulfur (S), and oxygen (O). Here are the molar masses of these elements:

• Ca (calcium): 40.08 g/mol
• S (sulfur): 32.07 g/mol
• O (oxygen): 16.00 g/mol

Now, let's calculate the molar mass of CaSO4:

Molar mass of CaSO4 = (1 × Ca) + (1 × S) + (4 × O) Molar mass of CaSO4 = (1 × 40.08 g/mol) + (1 × 32.07 g/mol) + (4 × 16.00 g/mol)

Molar mass of CaSO4 = 40.08 g/mol + 32.07 g/mol + 64.00 g/mol Molar mass of CaSO4 = 136.15 g/mol

The molar mass of CaSO4 is 136.15 g/mol.

Now that we have the molar mass of CaSO4, we can use it to find the number of moles (n) when given the number of moles of H2SO4 (sulfuric acid) as N(H2SO4) = 0.2 moles.

The molar ratio between H2SO4 and CaSO4 in a balanced chemical equation is 1:1. This means that for every mole of H2SO4, you get one mole of CaSO4.

So, if N(H2SO4) = 0.2 moles, then the number of moles of CaSO4 (m(CaSO4)) will also be 0.2 moles.

m(CaSO4) = 0.2 moles

Therefore, m(CaSO4) is also 0.2 moles.