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3 years ago

Could you please show work if you could

Chemistry

1 answer:

vovangra [49]3 years ago

6 0

Answer:

can u writ qn

Explanation:

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Monochloroacetic acid (HC2H2ClO2) is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead s

yaroslaw [1]

Answer: The pH of the solution is 1.703

Explanation:

We are given:

Concentration of monochloroacetic acid = 0.31 M

The chemical equation for the dissociation of monochloroacetic acid follows:

$HC_2H_2ClO_2\rightleftharpoons H^++C_2H_2ClO_2^-$

Initial: 0.31

At eqllm: 0.31-x x x

The expression of $K_a$ for above equation follows:

$K_a=\frac{[H^+][C_2H_2ClO_2^-}}{[HC_2H_2ClO_2]}$

We are given:

$K_a=1.35\times 10^{-3}$

Putting values in above equation follows:

$1.35\times 10^{-3}=\frac{x\times x}{(0.31-x)}\\\\x=-0.021,0.0198$

Neglecting the negative value of 'x' because concentration cannot be negative.

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

$pH=-\log (0.0198)\\\\pH=1.703$

Hence, the pH of the solution is 1.703

5 0

4 years ago

The speed of a water wave is 6.2 meters/sec. Its wave length is 0.50 meters. What is its frequency, cycles/see?

rusak2 [61]

The answer is 0.001515, I hope this helps!

6 0

3 years ago

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WILL VOTE BEST & GIVE 25 POINTS - PLEASE ANSWER

Elena-2011 [213]

Answer:

24 pills

Explanation:

650 mg/1000 = 0.65 g

(There are 1000 mg in one g)

15.6g/0.65g=24

3 0

3 years ago

What’s love?why is it important ?

Leno4ka [110]

Answer:

It's the Key to All Relationships. At the basis of all other emotions within a relationship is the sensation of love. When you feel loved, you feel less pressure, less alone, less anxiety, more secure, more confident, and more important.

Explanation:

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3 years ago

Which tempature is warmer than the freezing point in water?

vfiekz [6]

Water freezes at 0°C, 32°F, and 273°K. The only temperature warmer than the freezing point is 1°C.

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3 years ago

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