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3 years ago

What is the only intermolecular force present in nonpolar compounds?

1 answer:

6 0

The intermolecular force of attraction between non-polar molecules is called as dispersion force . Another trem for dispersion force is London dispersion force.

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a sample of the hydrate of sodium carbonate has a mass of 8.85 g. it loses 1.28 g when heated. find the molar ratio of this comp

xenn [34]

Answer:

Molar ratio of the compound is 1:1 and the type of hydrate is Mono hydrate.

Explanation:

From the given,

Mass of sodium carbonate $Na_{2}CO_{3}.XH_{2}O$ = 8.85 g

Loss mass $H_{2}O$ = 1.28 g

Actual weight of sodium carbonate = 8.85 g - 1.28 g = 7.57 g

$7.57 g Na_{2}CO_{3} \times \frac{1mol}{106 g} =\frac{0.0714}{0.0714}=1$

$1.28g H_{2}O \times \frac{1mol}{18 g} =\frac{0.0711}{0.0714}=1$

Therefore, the compound has only one water molecule.

Molecular formula of the compound is $Na_{2}CO_{3}.H_{2}O$ an name of the compound is sodium carbonate mono hydrate.

Hence, the type of the compound is Mono hydrate.

8 0

3 years ago

7. Which subatomic particle was discovered first?

ki77a [65]

Answer: electron

Explanation:

6 0

3 years ago

Which profession involves the study and

liq [111]

Answer:

That's easy, science.

Explanation:

5 0

3 years ago

PLEASE PLEASE PLEASE HELP! WILL AWARD BRAINLIESTPLEASE ANSWER AND STOP JUST LOOKING AT ITTTTT

Goshia [24]

Answer:

answer - c

answer - a

Explanation:

<h2>I hope answer correct</h2><h2>please like me</h2>

3 0

3 years ago

During an experiment, 321.1 grams of strontium phosphite are measured into a beaker. How many moles of strontium phosphite are i

Allushta [10]

321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

Explanation:

It is known that 1 mole of any substance is equal to the molar mass of that substance. So for the case of strontium phosphite, the molar mass is found to be 420.8 g/mol.

This means 1 mole of Strontium phosphite will contain 420.8 g of strontium phosphite.

Then 1 g of strontium phosphite will have $\frac{1}{420.8}$ moles of strontium phosphite.

So, 321.1 g of strontium phosphite will contain $\frac{321.1}{420.8}=0.76 moles$

Thus, 321.1 g of strontium phosphite will contain 0.76 moles of strontium phosphite in the beaker.

5 0

3 years ago