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Sholpan [36]
3 years ago
9

Which of the following will have the highest boiling point?

Chemistry
1 answer:
DerKrebs [107]3 years ago
8 0

Answer:

0.1M NH3

Explanation:

The boiling point of aqueous solutions depend on the nature of intermolecular interactions present. KBr will yield an ionic solution but NH3 will yield a molecular solution having hydrogen bonds. The degree of hydrogen bonding in the aqueous solution will further increase with the concentration of the solution.

Remember that experimental data shows that hydrogen bonds are strong bonds that lead to a significant increase in the boiling point of solutions. Hence 0.1M NH3 solution will have a higher boiling point due to intermolecular hydrogen bonding in the solution.

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How many grams of water can be produced when 11.7 moles of ethane (C2H6) react with excess oxygen gas?
Elina [12.6K]

Answer: 631.8 g

Explanation:

2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O

It can be seen from the balanced chemical equation, 2 moles of ethane reacts with 7 moles of Oxygen gas to produce 4 moles of carbon dioxide and 6 moles of water.

Ethane is the limiting reagent as it limits the formation of product.

Thus, if  2 moles of ethane produce 6 moles of water.

11.7 moles moles of ethane produce=\frac{6}{2}\times 11.7=35.1 molesof water.

Mass of water= no of moles\times Molar mass

Mass of water= 35.1\times 18g/mol= 631.8 g

4 0
3 years ago
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Hey...
Use the molarity formula
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<span>0.010902 mol
</span>Pb(NO3)2
1 mole=331.22g
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