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Georgia [21]
3 years ago
15

How many grams of dry nh4cl need to be added to 2.00 l of a 0.600 m solution of ammonia, nh3, to prepare a buffer solution that

has a ph of 8.74? kb for ammonia is 1.8×10−5?

Chemistry
1 answer:
Brrunno [24]3 years ago
8 0
Nh4cl = 117.165 gram ( solution is attached )

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Which equation represents a neutralization reaction?
sergij07 [2.7K]
A neutralization reaction is in essence a reaction between an acid an a base which usually results in pH neutral compounds being formed (a salt and water).  Therefor the answer would be OPTION A  (<span>base + acid → salt + water)</span>
6 0
4 years ago
Calculate the number of moles in 25.0 g of each of the
mamaluj [8]

Answer:

A. 6.25moles

B. 0.78moles

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D. 0.15moles

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Explanation:

use

  • n = mass/molar mass

A. He

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B. O2

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D. GaS3

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E. C4H10

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5 0
3 years ago
The following is a procedure that was theoretically performed by a student. Read through the procedure and answer the questions
yKpoI14uk [10]

Answer:

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Explanation:

We have the reactants as calcium chloride and potassium carbonate. Recall that we are expecting that the reaction will yield a precipitate. We must keep that in mind as we seek to write its balanced chemical reaction equation.

So we now have;

CaCl2 (aq) + K2CO3(aq) ---------> CaCO3(s) + 2KCl(aq)

Recall that the rule of balancing chemical reaction equation states that the number of atoms of each element on the right side of the reaction equation must be the same as the number of atoms of the same element on the left hand side of the reaction equation.

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Explanation: because as the electronegativity moves from left to right on the periodic table the protons do increase to make it into a positive charge.

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Kilauea volcano in Hawaii emits 200-300 tons of sulfur dioxide into the atmosphere each day. This is an example of

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Kilauea volcano in Hawaii emits noxious compounds of sulfur dioxide and other harmful pollutants as a result of a reaction with atmospheric water vapors and oxygen.

This reaction results in acid rain and volcanic smog which pollutes the air.

Over the years, the volcano has become a potential threat to health as harmful oxides are accelerating respiratory problems and acid rain destroys crops, and also harms water supplies.

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