it’s C
i hope i help you but if not DO NOT FORGET STAY SAFE AT HOME
Answer:
<h3>The answer is 8.29 %</h3>
Explanation:
The percentage error of a certain measurement can be found by using the formula

From the question
actual density = 19.30g/L
error = 20.9 - 19.3 = 1.6
We have

We have the final answer as
<h3>8.29 %</h3>
Hope this helps you
The pressure will not affect the rate of solution.
Answer:
mol times or devided by molar volume