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V125BC [204]
3 years ago
11

To find the atomic mass of a particular atom you need to know

Chemistry
2 answers:
Andreyy893 years ago
5 0
You just need the number of protons and number of neutrons as the mass of eelctrons is negligible
Kipish [7]3 years ago
5 0

Answer:

C. the number of protons and neutrons

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difficult to answer, need a bit more detail

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2 years ago
Select the statements that correctly describe a buffer. a) An acid added to the buffer solution reacts with the weak base of the
Tom [10]

Answer:

  • <em>(B.) The pH of a buffer solution is determined by the ratio of the concentration of conjugate base to the concentration of strong acid.</em>
  • <em>(C.) A buffer is generally made up of a weak acid and its conjugate base. </em>
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Explanation:

A buffer is  solution which resists change in pH upon addition of either acids or bases.

The pH of a buffer is calculated by the ratio of the concentration  of base to concentration of acid. The weak acid and conjugate base have a Ka similar to the pH desired.

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3 years ago
The force against a solid object moving through a gas or a liquid
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What would most accurately measure the volume of water or other liquid?
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D. Graduated Cylinder

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