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STALIN [3.7K]
3 years ago
14

Example: Make 100 mL 0.05 M NaOH from a 1.5 M solution.0.05 * 100 = 1.5 * ?​

Chemistry
1 answer:
____ [38]3 years ago
4 0

Answer:

3.33

Explanation:

M= 0.05*100/1.5= 3.33

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If measurements of a gas are 100L and 300 kilopascals and then the gas is measured a second time and found to be 75L, describe w
Tanya [424]

Answer:

The pressure of the gas increased (if temperature remained constant).

The Boyle's law supports this observation.

Explanation:

The initial measurements of the gas are given as;

volume = 100 L

Pressure = 300 kpa

The second measurement is given as;

Volume = 75 L

The second reading implies that the volume of the gas has decreased. If the temperature of the gas remained constant, then the pressure must have increased according to the Boyle's law;

At constant temperature, the pressure of a given mass of an ideal gas is inversely proportional to its volume.

4 0
2 years ago
Acid rain is produced when _______ mixes with the water of a raindrop.
goldfiish [28.3K]

The answer should be  B - Nitrogen Dioxide.

5 0
3 years ago
Select all that apply.
lutik1710 [3]
Correct answer is <span>X = ΔH

Reason:
1) The graph of enthalpy Vs reaction coordinate  suggest the reaction is endothermic in nature. For endothermic reaction, energy if product is more than that of reactant. Hence,  option 1 i.e. </span><span>X = -ΔH cannot be correct.
2) Since the reaction is endothermic in nature, </span>energy if product is more than that of reactant. Hence,  option 2 i.e. X = ΔH is correct.
3) Activation energy is energy difference between Reactant (A) and transition state (B). However, as per option C, activation energy (A.E.) is energy difference between product (C) and transition state (B), which is incorrect. 
6 0
3 years ago
Read 2 more answers
Calcium chloride is added to the roadways after a snowstorm. Which colligative property is being showcased here?
vlabodo [156]

Answer:

Option (D) freezing point depression

Explanation:

Calcium chloride is added to the roadways after a snowstorm because it reduces the freezing point of the ice. Further more, it has been observed that the calcium chloride also produces enough heat which enhances the melting of the ice as it produces an exothermic reaction.

6 0
3 years ago
What is the average atomic mass listed for nitrogen in the periodic table?
wel
Average atomic mass listed for nitrogen in the periodic table is 14

Hope this helps!
3 0
3 years ago
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