Answer:
a. 4900 mL; b. 4900 cm³ c. 4.9x10⁻³ m³
Explanation:
1 L = 1 dm³
4.9 L = 4.9 dm³
1 dm³ = 1000 cm³ → 4900 cm³
1 cm³ = 1 mL (4900 mL)
1 dm³ = 1x10⁻³ m³ → 4.9x10⁻³ m³
Answer: The formula for this hydrate is
Explanation:
Decomposition of hydrated copper sulphate is given by:

Molar mass of
= 160 g/mol
According to stoichiometry:
(160+18x) g of
decomposes to give 160 g of anhydrous 
Thus 42.75 g of
decomposes to give=
g of anhydrous 


Thus the formula for this hydrate is
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