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blagie [28]
3 years ago
13

What is the mass of 6. 02 x 1023 atoms of carbon-12?.

Chemistry
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

One mole of oxygen atoms contains 6.02214179×1023 oxygen atoms. Also, one mole of nitrogen atoms contains 6.02214179×1023 nitrogen atoms. … So, each carbon-12 atom weighs about 1.99265×10−23g

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Which of these describes an endothermic process?
oksian1 [2.3K]

Answer:

Put up the answer choices

Explanation:

endothermic means absorbing heat

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Give an example of how you could test Charles Law?
Assoli18 [71]

Explanation:

The experiment is performed at a constant atmospheric pressure. The experiment proceeds by placing an empty flask in a boiling water bath. As the temperature increases, the air inside the flask expands. Afterwards, the gas is cooled in a water bath by maintaining the amount of the air in the flask constant.

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3 years ago
An unknown metal forms a soluble compound, M(NO3)2, which then undergoes electrolysis with an applied current of 2.50 amperes. I
frozen [14]

Answer:

The metal is the cathode

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At the other cathode, the reaction going on is

M(s) ------> M2^+(aq) + 2e

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Explanation:

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And Q= It

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t= time taken in seconds

Now;

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x = 1.87 × 2×96500/ 2.50 × 22.6 × 60

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M(s) ------> M2^+(aq) + 2e

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7 0
4 years ago
Determine whether or not each mixture is a buffer. check all that apply. check all that apply. hcl and hf hf and naf hc2h3o2 and
maksim [4K]
Hello!

A buffer is composed of a weak acid and its conjugate base or a weak base and its conjugate acid. From the given list:

HCl and HF: Strong Acid and Weak Acid. NOT BUFFER

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HC₂H₃O₂ and  KC₂H₃O₂: Weak Acid and Conjugate Base. BUFFER

NaOH and NH₃: Strong Base and Weak Base. NOT BUFFER.

Have a nice day!
7 0
4 years ago
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