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3 years ago

What is a base used in toothpaste

Chemistry

2 answers:

lakkis [162]3 years ago

8 0

The base of toothpaste is magnesium hydroxide.

AlexFokin [52]3 years ago

6 0

Magnesium hydroxide is the base used in toothpaste. Compounds with hydroxide in their names are known to be basic. A base is used in the toothpaste in order to neutralize the acid produced when we eat

Hope this helped!

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Answer:

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3 years ago

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22. A flask containing 450 mL of 0.50 M H2SO4 was accidentally knocked to the floor. How many grams of NaHCO, do you need to put

Dvinal [7]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

To calculate the moles of a solute, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}\text{Volume of solution (in L)}}$

We are given:

Volume of sulfuric acid = 450mL = 0.45 L (Conversion factor: 1 L = 1000 mL)

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Putting values in above equation, we get:

$0.5mol/L=\frac{\text{Moles of sulfuric acid}}{0.45L}\\\\\text{Moles of sulfuric acid}=0.225mol$

For the given chemical reaction:

$H_2SO_4(aq.)+2NaHCO_3(aq.)\rightarrow Na_2SO_4(aq.)+2H_2O(l)+2CO_2(g)$

By Stoichiometry of the reaction:

1 mole of sulfuric acid reacts with 2 moles of sodium bicarbonate.

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Moles of sodium bicarbonate = 0.45 moles

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Hence, the correct answer is Option D.

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