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Lelechka [254]
3 years ago
15

(6 pt) Match each word from Column A with the correct definition from Column B. Column A Column B 1. element 2. compound 3. reac

tion 4. catalyst 5. neutralize 6. conservation A. to make an acid or base chemically neutral B. the keeping of animals, people, or places safe C. a substance made up of two or more elements D. a substance that is made of only one kind of atom E. a substance that increases the rate of a reaction but is not used up F. a process by which certain chemicals interact to form new products
Chemistry
1 answer:
Marat540 [252]3 years ago
3 0
1. D
2. C
3. F
4. E
5. A
6. B
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<u>Answer:</u> The initial pH of the HCl solution is 3

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=1\\M_1=?M\\V_1=100mL\\n_2=1\\M_2=0.10M\\V_2=1mL

Putting values in above equation, we get:

1\times M_1\times 100=1\times 0.10\times 1\\\\M_1=\frac{1\times 0.10\times 1}{1\times 100}=10M

1 mole of HCl produces 1 mole of H^+ ions and 1 mole of Cl^- ions

To calculate the pH of the solution, we use the equation:

pH=-\log[H^+]

We are given:

[H^+]=0.001M

Putting values in above equation, we get:

pH=-\log (0.001)\\\\pH=3

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What is the mass of an object that has a density of 2.3 g/mL And a volume of 343ML
Bogdan [553]

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788.9g

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