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What mass of NaOH is contained in 2.5L

Of a 0.010M solution?
a 0.010g
B. 1.0g
c. 2.5g
D. 0.40g

User Jmvivo
by
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1 Answer

3 votes

Answer:

B. 1.0g

Step-by-step explanation:

Step 1

The molarity of the solution is 0.010 M, that is, there are 0.010 moles of sodium hydroxide per liter of solution. The moles of NaOH in 2.5 L of solution are:


2.5LSol * (0.010molNaOH)/(1LSol) =0.025molNaOH

Step 2

The molar mass of sodium hydroxide is 40.00 g/mol. The mass corresponding to 0.025 moles is:


0.025 mol * (40.00g)/(mol) =1.0 g

There is 1.0 g of NaOH in the solution.

User Hisham H M
by
9.5k points