Question

how much CaCO3 and water must be weighed to make a solution that is 10% CaCO3

Answer 1

Answer:

1g of CACO3 AND 1g H2O

MAKE A SOLUTION OF 10% CACO3

Answer 2

∴100.0869 of  CaCO₃  must be added with 900.7821 gram water to make a solution that is 10%  CaCO₃ .

Explanation:

The molecular mass of CaCO₃ is 100.0869 g/mole.

Let x gram of water must be added to make a solution that 10%  CaCO₃

According to problem,

$\frac{100.0869}{x} =\frac{10}{90}$

⇒x=900.7821

∴100.0869 of  CaCO₃  must be added with 900.7821 gram water to make a solution that is 10%  CaCO₃