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3 years ago

The pressure of gas in a 600.0 mL cylinder is 65.0 mmHg. What is the new volume when the pressure is increased to 385 mmHg?

Chemistry

1 answer:

sergij07 [2.7K]3 years ago

5 0

Answer:

P1V1=P2V2

65 mmHg × 600 mL = 385 mmHg × V2

V2 = 101.30 mL

Explanation:

We can use Boyle's law

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substances consisting of ions held together by electrostatic attraction

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What is the answer to-6 + 1 = -5/

Jlenok [28]

-6+1= -5
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3 years ago

There are four hundred participants in the local Thanksgiving 5K race. If 51% of the participants are female, what is the ratio

Paha777 [63]

Answer:

51:49 is the ratio of female participants to male participants.

Explanation:

Percentage of females in the race = 51 %

Percentage of males in the race = 100% - 51 % = 49%

Total participants in race = 400

Number of women participants = $51% of 400=\frac{51}{100}\times 400=204$

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3 years ago

Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unw

Sauron [17]

Answer:

0.1472 mol/L is the concentration of the barium hydroxide solution.

Explanation:

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Mass of potassium hydrogen phthalate = 2.050 g

Molar mass of potassium hydrogen phthalate = $\frac{2.050 g}{204.2 g/mol}=0.01004 mol$

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$\frac{1}{2}\times 0.01004 mol=0.005020 mol$ of barium hydroxide

Moles of barium hydroxide = 0.005020 mol

Volume of the barium hydroxide solution = 34.10 mL = 0.03410 L

1 mL = 0.001 L

$Molarity=\frac{Moles}{Volume(L)}$

Molarity of the barium hydroxiude silution :

$=\frac{0.005020 mol}{0.03410 L}=0.1472 mol/L$

0.1472 mol/L is the concentration of the barium hydroxide solution.

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3 years ago

What is the source of energy in nuclear power plants?

Zinaida [17]

Answer:

<h2>URANIUM </h2>

Explanation:

What is the source of energy in nuclear power plants?

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1 year ago