Ask question

Ask question

All categories

2 years ago

13

Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to A. be decreased by t

wo thirds. B. be increased by two thirds. C. be decreased by one third. D. be increased by one third

1 answer:

Nostrana [21]2 years ago

5 0

Reducing the volume of contained gas by one third, while holding temperature constant, causes pressure to D. be increased by one third

You might be interested in

how many milliliters of a stock solution of 2.00M KNO3 would you need to prepare 100.0mL of 0.150M KNO3?

larisa86 [58]

The answer is 7.5 ml

3 0

3 years ago

You have 50 ml of a complex mixture of weak acids that contains some HF (pKa = 3.18) and some HCN (pKa = 9.21). Which is larger,

bonufazy [111]

Answer:

$\frac{[F^{-}]}{[HF]}$ is larger

Explanation:

$pK_{a}=-logK_{a}$ , where $K_{a}$ is the acid dissociation constant.

For a monoprotic acid e.g. HA, $K_{a}=\frac{[H^{+}][A^{-}]}{[HA]}$ and $\frac{[A^{-}]}{[HA]}=\frac{K_{a}}{[H^{+}]}$

So, clearly, higher the $K_{a}$ value , lower will the the $pK_{a}$

In this mixture, at equilibrium, $[H^{+}]$ will be constant.

$K_{a}$ of HF is grater than $K_{a}$ of HCN

Hence, $(\frac{F^{-}}{[HF]}=\frac{K_{a}(HF)}{[H^{+}]})>(\frac{CN^{-}}{[HCN]}=\frac{K_{a}(HCN)}{[H^{+}]})$

So, $\frac{[F^{-}]}{[HF]}$ is larger

5 0

3 years ago

A biological process by which sugars are converted into energy and lactate

elena55 [62]

That would be lactic acid fermentation. When the body is low on oxygen, and has a high amount of NADH, the pyruvate from glycolysis is fermented into L-lactate.

5 0

3 years ago

What volume is show in this picture?

Anarel [89]

Answer:

millileter????

8 0

2 years ago

How many electrons can be held in the second orbital

mariarad [96]

Second orbital can hold 8 electrons

3 0

3 years ago

Read 2 more answers