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Rudiy27
2 years ago
15

Which of the following statements about connecting paragraphs is correct?

Chemistry
2 answers:
Aleks [24]2 years ago
8 0

Answer:

D. You can use a pointing word in paragraph 2 that refers to a word in the paragraph 1

Explanation:

Same question was on my exam.

Reika [66]2 years ago
4 0
B.

And maybe put your question in the English/Literature tag next time lol
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A chemist dissolves 248mg of pure hydrochloric acid in enough water to make up 140mL of solution.Calculate the pH of the solutio
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Explanation : Given,

Mass of HCl = 248 mg = 0.248 g      (1 mg = 0.001 g)

Volume of solution = 140 mL

Molar mass of HCl = 36.5 g/mole

First we have to calculate the concentration of hydrochloric acid.

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Formula used :

\text{Molarity}=\frac{\text{Mass of }HCl\times 1000}{\text{Molar mass of }HCl\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

\text{Molarity}=\frac{0.248g\times 1000}{36.5g/mole\times 140mL}=0.0485mole/L=0.0485M

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The dissociation reaction is:

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