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2 years ago

2. A 2.5 mol SAMPLE OF OXYGEN GAS (O2) INCREASES TO 3.2 mol

Chemistry

1 answer:

lana [24]2 years ago

6 0

696.32 mmHg is the final pressure of the gas.

<h3>What is an ideal gas equation?</h3>

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas.

Given data:

$P_1$ = 720 mmHg

$P_2$ = ?

$n_1$ = 2.5 mol

$n_2$ = 3.2 mol

$V_1$ = 34 L

$V_2$ = 45 L

Formula

Combined gas law

$\frac{P_1 V_1}{n_1} = \frac{P_2 V_2}{n_2}$

$P_2$ = 696.32 mmHg

Hence, 696.32 mmHg is the final pressure of the gas.

Learn more about an ideal gas equation here:

brainly.com/question/19251972

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How many moles are in 3.00x 10^22 atoms of He?

sp2606 [1]

Answer:

<h2>0.05 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{3.0 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.049833...$

We have the final answer as

<h3>0.05 moles</h3>

Hope this helps you

3 0

3 years ago

How does advertising affect the sales of orbit white

MAXImum [283]

It would get the news out about Orbit White, and people would hear about it, and/or see the advert. They might even want to buy it or go into the grocery store thinking about it and end up buying it.

I hope I didn't misread the question because this looks more like an English/ Social Studies question than a chemistry question.

3 0

3 years ago

Read 2 more answers

How many grams of aluminum oxide (Al2O3) will be formed from 10.0 grams of aluminum (Al)? 4 AL + 3 02 --> 2 AL203

d1i1m1o1n [39]

Answer:

Mass = 18.9 g

Explanation:

Given data:

Mass of Al₂O₃ formed = ?

Mass of Al = 10.0 g

Solution:

Chemical equation:

4Al + 3O₂ → 2Al₂O₃

Number of moles of Al:

Number of moles = mass/molar mass

Number of moles = 10.0 g/ 27 g/mol

Number of moles = 0.37 mol

Now we will compare the moles of Al and Al₂O₃.

Al : Al₂O₃

4 : 2

0.37 : 2/4×0.37 = 0.185 mol

Mass of Al₂O₃:

Mass = number of moles × molar mass

Mass = 0.185 mol × 101.9 g/mol

Mass = 18.9 g

4 0

2 years ago

2. What is the chemical name for GaC1z?

VMariaS [17]

Answer:

aqueous gallium chloride i think

Explanation:

3 0

2 years ago

Please help me #6!!!!!!!!

Vesnalui [34]

I believe that the answer is 12 because there is already 3 O molecules and since its in parentheses with 3 outside it that means that there are 3 of those CO molecules meaning that for every 1 CO there will be 3 O’s so 3, four times Is 12

3 0

3 years ago