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GenaCL600 [577]
3 years ago
12

PLEASE ANSWER ASAP.id really appreciate it .Do metalloids have low or high density?

Chemistry
2 answers:
emmasim [6.3K]3 years ago
7 0
Metalloids have a high density. 
valkas [14]3 years ago
4 0
I'm pretty sure it's low density. I'm sorry if it's wrong.
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Given,: 28% w/w of NH_3 solution means 28 g of ammonia in 100 g of solution.

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Now we have to calculate the volume of solution.

Volume=\frac{Mass}{Density}=\frac{100g}{0.899g/ml}=111.2ml  

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute NH_3=\frac{\text {given mass}}{\text {molar mass}}=\frac{28}{17}=1.65moles

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Now put all the given values in the formula of molarity, we get

Molarity=\frac{1.65moles}{0.11L}=15mole/L

Using molarity equation:

M_1V_1=M_2V_2

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