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3 years ago

Molecular formula of ammonia

Chemistry

1 answer:

ser-zykov [4K]3 years ago

5 0

The answer is NH3
Hope this helps!

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Question 6 (0.04 points)

Bingel [31]

I think it’s C
a, sugar can’t conduct electricity
b, you don’t want to conduct electricity with something wet
salt can be a conductor of electricity

5 0

3 years ago

A 20.38 gram sample of cobalt is heated in the presence of excess sulfur. A metal sulfide is formed with a mass of 31.47 g. Dete

Viefleur [7K]

Answer: The empirical formula of the metal sulfide is $CoBr_{2}$ .

Explanation:

Given: Mass of metal = 20.38 g

Mass of metal sulfide = 31.47 g

Moles is the mass of a substance divided by its molar mass.

So, moles of cobalt (molar mass = 59 g/mol) are as follows.

$Moles = \frac{mass}{molarmass}\\= \frac{20.38 g}{59 g/mol}\\= 0.345 mol$

Moles of bromine (molar mass = 80 g/mol) are as follows.

$Moles = \frac{(31.47 - 20.38) g}{80 g/mol}\\= \frac{11.09 g}{80 g/mol}\\= 0.138 mol$

Now, the ratio of number of moles of cobalt and number of moles of bromine are as follows.

Moles of Co : Moles of Br = 1 : 2

Hence, the empirical formula is $CoBr_{2}$ .

Thus, we can conclude that the empirical formula of the metal sulfide is $CoBr_{2}$ .

6 0

3 years ago

How much stronger is methane than carbon dioxide as a greenhouse gas?

Vaselesa [24]

Answer:

the answer is d. but try 20

Explanation:

8 0

3 years ago

How would an apple, potato, and onion all taste the same?

stira [4]

Answer:

Explanation:

3 0

3 years ago

Read 2 more answers

Difference between isopropyl alcohol and ethyl alcohol

Tanzania [10]

Answer:

Both alcohols are flammable, and both are used as disinfectants. There are varying grades of both in terms of purity, ethanol is more widely used in wet laboratories whereas isopropyl alcohol is preferentially used to disinfect electronic devices.

3 0

2 years ago