If 0.2 mol of the following substances are required how many grams of those substances should be taken?
Sodium chloride, magnesium oxide, calcium carbonate
bako jo bakna hai
Answers
Explanation:
The formula to find out the weight of substance is,
Weight of substance (gm) = Number of moles × Molar Mass.
(i) For sodium chloride:-
Weight of sodium chloride = Number of moles × molar mass.
= 0.2 × 58.44
= 11.69 grams.
(ii) For Magnesium Oxide:
Weight of magnesium oxide = Number of moles × Molar mass.
= 0.2 × 40.3
= 8.06 grams.
(iii) For calcium carbonate:
Weight of calcium carbonate = Number of moles × Molar Mass.
= 0.2 × 100.087
= 20.02 grams.
Answer:
We need, 11.7 g of NaCl for obtaining 0.2 moles of NaCl. we need , 8g of MgO for obtaining 0.2 moles of MgO.
Explanation:
I hope it is helpful have a nice day