3 years ago

How does the diaphragm aide in breathing?

Chemistry

2 answers:

Murljashka [212]3 years ago

7 0

It’s A I’m %99.999 sure

Klio2033 [76]3 years ago

3 0

The answer is A hehe

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If 3.0 g of NH3 reacts with 5.0 g of HCl, what is the limiting reactant?

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<h2>Answer:HCl</h2>

Explanation:

$\text{number of moles}=\frac{\text{given mass}}{\text{molar mass}}$

For $NH_{3},$

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For $HCl,$

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$n_{HCl}=\frac{5}{36.5}=0.136$

The reaction between $NH_{3}$ and $HCl$ is

$NH_{3}+HCl$ → $NH_{4}Cl$

So,one mole of $NH_{3}$ requires one mole of $HCl$

$0.176$ moles of $NH_{3}$ requires $0.176$ moles of $HCl$

But there are only $0.136$ moles of $HCl$ available.

$HCl$ will be consumed first.

So, $HCl$ is the limiting reagent.

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The volume of a sample of oxygen is 300.0 mL when the pressure is 1.00 atm and the temperature is 27.0°C. At what temperature is

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