1 year ago

Which of the following samples of water will contain the most heat?

Chemistry

1 answer:

VMariaS [17]1 year ago

6 0

Answer:

The answer is D- make sure you give good rate

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1 year ago

A student has a 0.00124 M HCl (aq) solution and she titrates 25.00 mL of this solution against an unknown potassium hydroxide so

malfutka [58]

Answer:

The Molarity of KOH is

$7,01.10^{-4}M$

Explanation:

The endpoint indicates the volume necessary to neutralize the moles of acid.

In other words, the point at which the moles of both solutions are the same.

$M_{(HCl)}V_{HCl}=n\\ \\M_{(KOH)}V_{KOH}=n$

we match these equations and find the concentration of KOH

$M_{(HCl)}. V_{(HCl)} =M_{(KOH)} .V_{(KOH)}\\ \\M_{(KOH)}=\frac{M_{(HCl)}. V_{(HCl)}}{V_{(KOH)}} \\\\M_{(KOH) =\frac{(25mL)(0,00124m)}{(44,25mL)}\\\\$

$M_{(KOH)}=7,01.10^{-4}$

5 0

2 years ago