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3 years ago

What mass of NaOH is in 250 mL of a 3.0M NaOH solution

Chemistry

2 answers:

Kay [80]3 years ago

7 0

Answer:

about 30g

Explanation:

Molarity = mol/L

*convert mL to L*

3M=xmol/.25

xmol = .75

*convert to g

.75 mol NaOH * 40g/mol = 30 g

vodka [1.7K]3 years ago

6 0

Explanation:

Explanation: It's a 3.0 M solution so 1 litre of solution contains 3 moles of NaOH. 250 ml of solution therefore contains 0.25 x 3 = 0.75 moles of NaOH. The molar mass of NaOH is 39.9971 g/mol, so 250 ml of this solution contains 0.75 x 39.9971 = 29.99 g, or if you round it up 30.0 g.

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What mass of NaOH is in 250 mL of a 3.0M NaOH solution​

What mass of NaOH is in 250 mL of a 3.0M NaOH solution