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MrRissso [65]
2 years ago
12

What is the result of the following calculation? Record to the correct number of significant figures.

Chemistry
1 answer:
andriy [413]2 years ago
3 0

Answer:

8.15103

g

x

Explanation:

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A can contains a gas with a volume of 86 mL at 30oC. What is the volume in the can if it is heated to 65oC?
Ber [7]

Answer:

New volume of gas = 95.93 ml (Approx)

Explanation:

Given:

Old volume of gas = 86 ml

Old temperature = 30°C = 30 + 273 = 303 K

New temperature = 65°C = 65 + 273 = 338 K

Find:

New volume of gas

Computation:

V1T2 = V2T1

(86)(338) = (V2)(303)

New volume of gas = 95.93 ml (Approx)

8 0
3 years ago
The concentration of an HCl acid solution is initially 6mol/L. What would the concentration of a new solution be if 200 mL of th
pochemuha

Taking into account the definition of dilution, the concentration of the new solution is 1 mol/L.

<h3>Dilution</h3>

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

  • Ci: initial concentration
  • Vi: initial volume
  • Cf: final concentration
  • Vf: final volume

<h3>Final volume</h3>

In this case, you know:

  • Ci= 6 mol/L
  • Vi= 200 mL
  • Cf= ?
  • Vf= 1 L (1000 mL) water + 200 mL of HCL= 1200 mL

Replacing in the definition of dilution:

6 mol/L× 200 mL= Cf× 1200 mL

Solving:

(6 mol/L× 200 mL)÷ 1200 mL= Cf

<u><em>1 mol/L= Cf</em></u>

In summary, the concentration of the new solution is 1 mol/L.

Learn more about dilution:

brainly.com/question/6692004

brainly.com/question/16343005

brainly.com/question/24709069

#SPJ1

5 0
1 year ago
What are compounds????????????????
sweet [91]

Answer:

Compounds are pure substance consisting of two or more different atoms

8 0
2 years ago
Read 2 more answers
Which describes an alkaline solution?<br> pH less than 7<br> pH equal to 7<br> basic<br> acidic
Solnce55 [7]
Alkaline solutions are basic so answer is C basic

4 0
3 years ago
Read 2 more answers
Calculate the partial pressure of phosgene that is in equilibrium with a mixture of 0. 025 atm of carbon monoxide and 0. 003 5 a
saw5 [17]
According to the reaction equation:
by using ICE table:
              CO(g)      + Cl2(g) ↔ COCl2(g)
initial    0.025        0.0035          0
change -X                 -X                +X
Equ     (0.025-X)    (0.0035-X)        X

when:
Kp = P(COCl2)/P(CO}*P(Cl2)      when Kp= 0.2
by substitution:
0.2 = X / (0.025-X)(0.0035-X) by solving this equation for X
∴ X = 1.74x10^-5

4 0
3 years ago
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