3 years ago

PLEASE HELP!!!!LIKE NOW!!!

Chemistry

1 answer:

dsp733 years ago

6 0

I'm not completely sure on this and I apologize if it's wrong, but I believe it's B) Newton's Law.

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Find the volume of 6.45 moles of gas present at a temperature of 27.0oC and a pressure of 675 torr.

maw [93]

Answer: The volume of the gas is 178.76 L

Explanation:

The ideal gas equation is given as:

.......(1)

where

P = pressure of the gas = 675 torr

V = volume of gas = ?

n = number of moles of gas = 6.45 moles

R = Gas constant = 62.36 L.torr/mol.K

T = temperature of the gas = $27^oC=[27+273]K=300K$

Putting values in equation 1, we get:

$675torr\times V=6.45mol\times 62.36L.torr/mol.K\times 300K\\\\V=\frac{6.45\times 62.36\times 300}{675}=178.76 L$

Hence, the volume of the gas is 178.76 L

3 0

3 years ago

PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!

Ad libitum [116K]

mL acetic acid

mL water

Explanation:

Since

of the vinegar, by volume, is acetic acid, and we have

100

mL of vinegar, we have

mL of vinegar.

Similarly, we have

100

−

being water, so we have

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8 0

3 years ago

Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of subst

Korolek [52]

Answer:

It would be 6.9420. Thank me later

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3 years ago

If some of the gas bubbles from the reaction had escaped out the bottom of the tube, how would this have affected your value for

Andrej [43]

The composition would be more "diluted" in a sense.

7 0

3 years ago

What is the pH of a 2.10 x 10⁻⁶ M solution of HCl?

Delvig [45]

Answer:

pH = 5.7

Explanation:

pH = -log[H^+]

For HCl pH = -log[HCl] = - log [2.10 x 10⁻⁶ ] = 5.7

5 0

3 years ago