3 years ago

What does a low number on the pH scale say about a solution?

Chemistry

2 answers:

irina [24]3 years ago

8 0

Answer:D The solution is an acid

Explanation:The lower the pH of a substance the stronger the acidic level.

vlabodo [156]3 years ago

6 0

Answer:

d. the solution is a acid

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620 mL of nitrogen at standard pressure is compressed into a 480 mL container. What is the new pressure in kPa?

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Explanation:

Hello!

In this case, since the relationship between volume and pressure is inversely proportional, based on the Boyle's law:

$P_1V_1=P_2V_2$

Considering that the standard pressure is 101.325 kPa, we can compute the final pressure as shown below:

$P_2=\frac{P_1V_1}{V_2}=\frac{620mL*101.325kPa}{480mL}\\\\P_2=131kPa$

Therefore, the answer is c. 131 kPa .

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