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Gennadij [26K]
2 years ago
5

What mass of nacl is in 0.600 l of 0.250 m solution?

Chemistry
1 answer:
kipiarov [429]2 years ago
4 0

Answer:

8.77 grams NaC

Explanation:

To find the mass of NaCl, you need to (1) use the molarity equation to find moles, then (2) calculate the molar mass of NaCl (via the periodic table), and then (3) convert moles NaCl to grams (via molar mass). The final answer should have 3 sig figs because the given values also have 3 sig figs.

(Step 1)

Molarity (M) = moles / volume (L)

0.250 M = moles / 0.600 L

(0.250 M) x (0.600 L) = moles

0.150 = moles

(Step 2)

Molar Mass (NaCl): 22.99 g/mol + 35.45 g/mol

Molar Mass (NaCl): 58.44 g/mol

(Step 3)

0.150 moles NaCl            58.44 g
---------------------------  x  -------------------  = 8.77 grams NaCl
                                         1 mole

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