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kotykmax [81]
2 years ago
11

If a gas has a volume of 3.67 L and a pressure of 790 mm Hg, what will the pressure be if the volume is compressed to 2.12 L? Wh

at is the pressure in atmospheres (atm)?
Chemistry
2 answers:
oksian1 [2.3K]2 years ago
7 0

If each gas sample has the same temperature and pressure, which has the greatest volume? Since hydrogen gas has the lowest molar mass of the set, 1 g will have the greatest number of moles and therefore the greatest volume. What is the Ideal Gas Law?

mrs_skeptik [129]2 years ago
3 0

Answer:

0.600

Explanation:

2.120/3.670 = 0.578 so 790*0.578 = 456.349 when converted to atm that is 456.349/760 = V2

0.600

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1. When the temperature of a rigid hollow sphere containing 685 L of helium gas is
mote1985 [20]
<h3>Answer:</h3>

250.756 moles He

<h3>Explanation:</h3>

From the question we are given;

Volume, L = 685 L

Temperature, T = 621 K

Pressure, P = 189 × 10 kPa

We are required to calculate the number of moles of the gas,

Using the Ideal gas equation,

PV = nRT, where P is the pressure, V is the volume, T is the temperature, n is the number of moles, and R is the ideal gas constant.

We can replace the known variables and constant in the equation to get the unknown variable, n.

Using ideal gas constant as 8.3145 L.kPa/K/mol

n=\frac{PV}{RT}

n=\frac{(1890)(685)}{(8.3145)(621)}

n = 250.7557 moles

   n = 250.756 moles

The moles of helium contained in the sphere is 250.756 moles

6 0
2 years ago
What is the percent composition each element in c6h8o6
QveST [7]

Answer:

Percentage of oxygen = 30%

Percentage of carbon = 30%

Percentage of hydrogen = 40%

Explanation:

Formula:

Percentage of element = given amount / total amount × 100

Given compound:

C₆H₈O₆

Number of atoms of carbon = 6

Number of atoms of hydrogen = 8

Number of atoms of oxygen = 6

Total number of atoms = 20

Percentage of carbon = 6/20 × 100

Percentage of carbon = 30%

Percentage of Hydrogen = 8/20 × 100

Percentage of Hydrogen = 40%

Percentage of oxygen = 6/20 × 100

Percentage of oxygen = 30%

6 0
3 years ago
The molecular formula<br>of oxide of silicon​
natulia [17]

Answer:

true

Explanation:

8 0
2 years ago
Read 2 more answers
Heat and pressure deep in the earth change shale to slate. Why does this happen?
dedylja [7]

Answer:

Because of the ground above and the molten iron core.

Explanation:

As you go deeper into the earth you have more and more of the earth above you that applies pressure on you. The heat near the very top of the plate is relatively low and it decreases by a little as you go down. But once you start to go down into the earth by hundreds of meters then the temperature starts to rise and it rises pretty quickly due to the heat being transferred from the molten iron outer core of the earth.

5 0
3 years ago
Predict the products for the following chemical reaction: H2 + O2 →
RSB [31]
The answer is C I got it right so hope it helped ;)
6 0
3 years ago
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