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Leona [35]
2 years ago
12

How many particles are there in 5 grams of sodium carbonate?

Chemistry
1 answer:
Anit [1.1K]2 years ago
4 0

3.01× 1024 particles are the number of  particles are there in 5 grams of sodium carbonate.

<h3>How many particles are there in 5 grams of sodium carbonate?</h3>

There are 6.022 × 1023 particles in one gram of a substance according to Avogadro's number. So when we find out for 5 grams, then we multiply 5 with 6.022 × 1023, we get 3.01 × 1024 particles. For one gram atomic weight of hydrogen, one mole of hydrogen contains 6.022 × 1023 hydrogen atoms.

So we can conclude that 3.01× 1024 particles are the number of  particles are there in 5 grams of sodium carbonate.

Learn more about particles here: brainly.com/question/11066673

#SPJ1

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Explanation:

When a substance or solution has pH equal to 7 then it is known as a neutral solution. And a solution with pH more than 7 is basic in nature.  

Antacid is a base that has chemical formula Mg(OH)_{2} and it is also known as magnesium hydroxide.

Hence, an antacid has pH greater than 7 (making it basic) so that it can neutralize the acid.

Therefore, when excess of acid is formed in the stomach then there occurs more hydrogen ions. Due to which pain is felt in the stomach and in this situation when an antacid is consumed then it releases hydroxide ions as it is a base due to which acid gets neutralized and we feel relieved.

Hence, we can conclude that the pH of an antacid solution that is used to neutralize excess stomach acid is more than 7.

7 0
3 years ago
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How many moles are represented by 3.01 - 1023 helium atoms?
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Answer:

2.5x10^–3 mole.

Explanation:

Data obtained from the question include:

Volume of solution = 25mL

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First, we'll begin by converting 25mL to L. This can be achieved by doing the following:

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Now, we can obtain the number of mole of HNO3 present in the solution as follow:

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