All categories

3 years ago

Now, let's solve our problem using Boyle's Law:

Chemistry

1 answer:

yawa3891 [41]3 years ago

3 0

Answer:

V₁ = 0.585 L

Explanation:

Given data:

Initial pressure = 151 mmHg

Initial volume = ?

Final pressure = 166 mmHg

Final volume = 0.532 L

Solution:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume

Now we will put the values in formula,

P₁V₁ = P₂V₂

151 mmHg × V₁ = 166 mmHg × 0.532 L

V₁ = 166 mmHg × 0.532 L / 151 mmHg

V₁ = 88.312mmHg .L /151 mmHg

V₁ = 0.585 L

You might be interested in

A 0.89% (w/v) sodium chloride solution is referred to as physiological saline solution because it has the sameconcentration of s

elixir [45]

Answer: Molarity of a physiological saline solution is 0.15 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n\times 1000}{V_s}$

n = moles of solute

$V_s$ =volume of solution in ml

Given : 0.89 g of sodium chloride in 100 ml of solution.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.89g}{58.5g/mol}=0.015moles$

Volume of solution = 100 ml

$Molarity=\frac{0.015\times 1000}{100ml}=0.15M$

Molarity of physiological saline solution is 0.15 M

4 0

4 years ago

The natural process where the sun's energy is trapped by the atmosphere to make the Earth warm enough for life is known as

Juliette [100K]

The greenhouse effect captures the sun's energy and keeps the earth warm.

5 0

3 years ago

Can someone plz help me on this. I need it really bad

kifflom [539]

Answer:

- 40.66

- 9.91

Explanation:

For the first question:

Our theoretical compound is MR₂

1 mol of MR₂ contains 1 mol of M and 2 moles of R

Let's find out the molar mass:

9.45 g/mol + 18.12 g/mol . 2 = 45.69 g/mol

We can solve this, by an easy rule of three:

1 mol of MR₂ weighs 45.69 grams

Then, 0.89 moles may weigh 40.66 g

For the second question:

Our theoretical compound is D₂G

Let's determine the molar mass:

11.45 g/mol . 2 + 44.57 g/mol = 67.47 g/mol

1 mol of anything contains 6.02×10²³ molecules. By this definition we can say that 6.02×10²³ molecules weigh 67.47 grams. Let's solve by the rule of three:

6.02×10²³ molecules weigh 67.47 g

8.84×10²² molecules may weigh (8.84×10²² . 67.47 ) / 6.02×10²³ = 9.91 g

8 0

3 years ago

Can you help me pleeeeaaaassseee i have a quiz

Gnoma [55]

Answer:

I went and searched it up for you

3 0

3 years ago

A sample of gas contains 0.1100 mol of H2(g) and 5.500E-2 mol of O2(g) and occupies a volume of 6.69 L. The following reaction t

sp2606 [1]

Answer:

4.46L

A. 181L

B. 133L

Explanation:

For the reaction:

2H₂(g) + O₂(g) → 2H₂O(g)

0,1100 moles of H₂ with 0,0055 moles of O₂ produce 0,1100 moles of H₂O(g)

Using Avogadro's law that says that equal volumes of all gases, at the same temperature and pressure, have the same number of molecules. It is possible to write:

V₁ / n₁ = V₂ / n₂

Where:

V₁ is initial volume (6.69L); / n₁ are initial moles (0.1100moles+0.00550moles); V₂ is final volume and n₂ final moles (0.1100moles)

6.69L / 0.165moles = V₂ / 0.1100moles

V₂ = 4,46L

A. For the reaction:

CH₄(g) + CCl₄(g) → 2CH₂Cl₂(g)

The volume of methane you require is 181L. Again, you can use Avogadro's law to know that equal volumes have the same number of molecules. As the reaction is 1:1, volume of methane must be the same of carbon tetrachloride.

B. For the reaction:

4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g)

You can use, again, Avogadro's law. If 4 moles of reaction that occupy 53,3L produce 10 moles of gases that occupy...:

V₁ / n₁ = V₂ / n₂

Where:

V₁ is initial volume (53,3L); / n₁ are initial moles (4moles); V₂ is final volume and n₂ final moles (10)

53.3L / 4moles = V₂ / 10moles

V₂ = 133L

I hope it helps!

3 0

3 years ago