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lisabon 2012 [21]
3 years ago
12

Brainliest to right answer

Chemistry
1 answer:
Alex777 [14]3 years ago
8 0
Pretty sure it's true
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What happens to the molarity of a salt solution if the number of moles of salt in the solution is multiplied by three and the nu
Dovator [93]

Answer:

The molarity of the solution remains unchanged.

Explanation:

Consider the formula for the molarity M of a solution:

\displaystyle M = \frac{n}{V},

where

  • n is the number of moles of solute in this solution, and
  • V is the volume of the solution.

For this salt solution,

  • n_{1} = 3\;n_{0}, and
  • V_{1} = 3\;V_{0}.

Initial molarity:

\displaystyle M_{0} = \frac{n_{0}}{V_{0}}.

Final molarity:

\displaystyle M_{1} = \frac{n_{1}}{V_{1}} = \frac{3\;n_{0}}{3\;V_{0}} = \frac{n_{0}}{V_{0}} = M_{0}.

In other words, the molarity of the solution remains unchanged.

8 0
3 years ago
C₃H₈ (g) + 5O₂ (g) --> 3CO₂ (g) + 4H₂O (l) would be best classified as which type of reaction?
Dennis_Churaev [7]
Answer answer : combustion
7 0
2 years ago
PLEASE HELP ME I BEG YOU
VladimirAG [237]

The average kinetic energy of 1 mole of a gas at -32 degrees Celsius is:
 
3.80 x 103 J

The relationship between volume and temperature of a gas, when pressure and moles of a gas are held constant, is: V*T = k.

FALSE

The relationship between moles and volume, when pressure and temperature of a gas are held constant, is: V/n = k. We could say then, that:
If the moles of gas are tripled, the volume must also triple.


 If the temperature and volume of a gas are held constant, an increase in pressure would most likely be caused by an increase in the number of moles of gas.

TRUE

If the vapor pressure of a liquid is less than the atmospheric pressure, the liquid will not boil.

TRUE


35 - AB

36 -  BD

33 - true

34 - False

20 - 6

21 - orthohombic


4 0
3 years ago
What happens when a pure substance undergoes a chemical change
Zina [86]
Google will help you with this
8 0
3 years ago
A fact of nature that has been confirmed many times by observation is known as a(n).
BlackZzzverrR [31]

Answer:

law(scientific law)

Explanation:

8 0
4 years ago
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