altaiehawraa5 altaiehawraa5

26-03-2020
Chemistry

contestada

How many grams of NaCl are needed to prepare 1.20 liters of a 2.00 M solution?
A) 70.2 g
B) 97.5 g
C) 117 g
D) 140 g

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thanosvegan thanosvegan

26-03-2020

Answer: D) 140g

Explanation: no. of moles of NaCl = molarity X volume in litres = 2 X 1.2 = 2.4, and molar mass or mass of 1 mole of NaCl = 58.44 g, so 2.4 moles NaCl = 140.256 g

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agpier04 agpier04

13-01-2021

Answer:

D) 140 g

Explanation:

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