Question

a mixture contains 100gram each of k2co3 and mgco3 calculate the total no. of oxygen atoms​

Answer 1

Explanation:

Let CaCO3bexg.

Then, MgCO3is(18.4−x)g.

CaCO3→CaO+CO2

1 mol            1 mol     1 mol

100g             56g        44g

xg                                10044xg

MgCO3→MgO+CO2

1 mol             1 mol     1 mol

84g                40g       44g

(18.4-x)g                 8444(18.4−x)g

Total amount of CO2=10044x+8444(18.4−x) = 8.8 (given).

This gives x = 10g.

∴CaCO3=10g=0.1mol.

MgCO3=18.4−10=8.4g=0.1mol.

Total moles of CaCO3 and MgCO3=0.2mol.

∴CaCO3=50mol%.

MgCO3=50mol%.

Answer 2

Answer:

I hope you understand that answer of this question with proper explanation.