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Marrrta [24]
3 years ago
7

In an automobile's catalytic converter,

Chemistry
1 answer:
tia_tia [17]3 years ago
5 0

The most of the pollutants (carbon monoxide, nitrogen monoxide and unburned hydrocarbons) are released from the car during the first one to two minutes after the car is started, and then decrease significantly after that, due to increasing the temperature which supply the system by heat that required to oxidize the released gases by increasing the rate of the chemical reaction.

Then, the correct answer is the temperature  (B).

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A chemist needs 500.0 mL of a 1.500 M perchloric acid solution. The stockroom provides the chemist with
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Answer:-  47.62 mL

Solution:- It is a dilution problem where we are asked to calculate the volume of 15.75 M perchloric acid solution required to make 500.0 mL of 1.500 M solution.

For solving this type of problems we use the dilution equation:

M_1V_1=M_2V_2

Where, M_1 is the concentration of the concentrated solution and V_1 is it's volume.

M_2 is the concentration of the diluted solution and V_2 is it's volume.  Let's plug in the values in the equation and solve it for V_1 .

15.75M(V_1)=1.500M(500.0mL)

On rearranging this for V_1 :

V_1=\frac{1.500M(500.0mL)}{15.75M}

V_1=47.60mL

So, 47.62 mL of 15.75 M perchloric acid are required to make 500.0mL of 1.500 M solution.

3 0
4 years ago
During dehydration synthesis, a ________ molecule is produced.
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I hope this helps! :D

6 0
3 years ago
Select the correct answer.
Anit [1.1K]

Answer:

D

Explanation:

There is know graph that has the information to answer this question.

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sana makatulong huhu follow me thanks

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