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Sodium chloride, NaCl, contains 39% Na (sodium) and 61% Cl (chloride) by mass. If you have a 150-g sample of NaCl, how many grams of sodium and chloride are there in the sample? |
Answer» Answer :-58.5 grams of Sodium and 91.5 grams of Chlorine are there in the sample . EXPLANATION :-We have :- → Percentage of Sodium (Na) = 39 % → Percentage of Chlorine (CL) = 61 % → Mass of the sample of NaCl = 150 g ________________________________ Mass of Sodium :- Let the required mass of Sodium in the sample, be "x" grams . So, required mass :- ⇒ (x/150) × 100 = 39 ⇒ 100X/150 = 39 ⇒ 100x = 39(150) ⇒ 100x = 5850 ⇒ x = 5850/100 ⇒ x = 58.5 g Mass of Chlorine :- Let the required mass of Cholrine in the sample be "y" grams. Now, we have :- ⇒ (y/150) × 100 = 61 ⇒ 100y/150 = 61 ⇒ 100y = 61(150) ⇒ 100y = 9150 ⇒ y = 9150/100 ⇒ y = 91.5 g |
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