If 0.2 mol of the sodium chloride (NaCl) substances are required how many grams of sodium chloride should be taken?
Answers
Answer:
20.02 gram
For finding Substance weight in gram, we know the formula.
Weight if substance (in gm) = Number of moles × Molar Mass.
Now, we have to find for three substance.
(i) For NaCl , Sodium chloride -
Number of moles × molar mass.
= (0.2 × 58.44)
= 11.69 g.
(ii) For MgO, Magnesium Oxide -
Number of moles × Molar mass.
= ( 0.2 × 40.3)
= 8.06 g
(iii) For CaCO₃ , Calcium carbonate -
Number of moles × Molar Mass.
= (0.2 × 100.087)
= 20.02 g
Explanation:
For finding Substance weight in gram, we know the formula.
Weight if substance (in gm) = Number of moles × Molar Mass.
Now, we have to find for three substance.
(i) For NaCl , Sodium chloride -
Number of moles × molar mass.
= (0.2 × 58.44)
= 11.69 g.
(ii) For MgO, Magnesium Oxide -
Number of moles × Molar mass.
= ( 0.2 × 40.3)
= 8.06 g
(iii) For CaCO₃ , Calcium carbonate -
Number of moles × Molar Mass.
= (0.2 × 100.087)
= 20.02 g