3 years ago

Fill in the blank... Each element is made up of only one kind of ________

Chemistry

1 answer:

strojnjashka [21]3 years ago

3 0

Each element is made up of only one kind of atom.

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If 25.0 mL of 0.100 M Ca(OH)2 is titrated with 0.200 M HNO3, what volume of nitric acid is required to neutralize the base?

Troyanec [42]

Answer:

25 mL

Explanation:

The reaction that takes place is:

Ca(OH)₂ + 2HNO₃ → Ca(NO₃)₂ + 2H₂O

First we calculate how many Ca(OH)₂ moles were spent in the titration:

25.0 mL * 0.100 M = 2.5 mmol Ca(OH)₂

Then we convert Ca(OH)₂ moles into HNO₃ moles, using the stoichiometric ratio:

2.5 mmol Ca(OH)₂ * $\frac{2mmolHNO_3}{1mmolCa(OH)_2}$ = 5.0 mmol HNO₃

Finally we calculate the volume of required nitric acid solution, using the concentration:

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Answer:

True

Explanation:

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