All categories

4 years ago

if a gas occupies at 5.40 L at a pressure of 1.25atm, what will be its volume at a pressure of 3.00 atm? (Show work)

Chemistry

1 answer:

katen-ka-za [31]4 years ago

5 0

Answer:

Explanation:

Givens

P = 1.25 atm

V = 5.4 L

P1 = 3 atm

V1 = ??

Formula

The basic formula is P*V = P1 * V1

Solution

1.25 * 5.4 = 3 * V1

6.75 = 3*V1

6.75 /3 = 3*V1/3

2.25 = V1

You might be interested in

I NEED HELPPP THIS DUE TODAY!!!! IT IS URGENT!!

Volgvan

Answer:

I don't really get what were supposed to be answering. if you give us a more clear question, it will be easier to answer! :)))

5 0

3 years ago

The following reaction is at equilibrium: 2C + 3H 2 ⇌ C 2H 6 + heat If C 2H 6 is added to the system, which of the following wil

Sever21 [200]

Pretty sure it’s C the added products drives reverse reaction and since forward releases heat, reverse would absorb.

4 0

4 years ago

Which element represents 16 protons and 16 neutrons

IgorC [24]

Surfer
———
sulphur has atomic number 16, which signifies that it has 16 electron and 16 protons and 16 neutron

7 0

3 years ago

When 70.4 g of benzamide (C7H7NO) are dissolved in 850. g of a certain mystery liquid X , the freezing point of the solution is

lora16 [44]

Answer:

i=1.62 .

Explanation:

Let, i be the Van't Hoff Factor.

Moles of benzamide,= $\dfrac{Mass}{molar\ mass}=\dfrac{70.4}{121.14}=0.58\ mol.$

Molality of solution, m= $\dfrac{moles }{mass\ of\ solvent}=\dfrac{0.58}{0.85}=0.68\ molal.$

Now, we know

Depression in freezing point, $\Delta T=i\times K_f\times m$ .....1

It is given that,

$\Delta T=2.7^o C\\i=1 ( since\ it\ is\ non\ dissociable\ solutes)\\K_f ( freezing\ constant)\\$

Putting all these values we get,

$K_f=3.949\ C/m.$

Now, moles of ammonium chloride= $\dfrac{70.4}{53.49}=1.316\ mol.$

molality = $\dfrac{1.316}{0.85}=1.54 molal.\\\Delta T=9.9 .$

Putting all these values in eqn 1.

We get,

i=1.62 .

Hence, this is the required solution.

6 0

3 years ago

What is the mass of 3.5 moles of silicon? (to the nearest tenth)

Thepotemich [5.8K]

Answer: 112.2 g

Explanation:

The atomic mass of silicon is 32.065 g/mol, so 3.5 moles have a mass of (3.5)(32.065) grams, or about <u>112.2 g</u>

4 0

2 years ago