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3 years ago

What do you use to measure mass

1 answer:

7 0

To measure gravitational mass one of the methods includes using a spring balance. a balance is a type of scale that is different because it uses known mass to measure the unknown mass. so technically the method measures the weight.

also if you just want to know normal mass then just weigh the object on the scales because technically speaking when you want to see your weight you are actually seeing your mass. because mass never changes whilst weight is from the result of gravity and always changes, so yeah. I hope thos actually makes some sort of sense

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I have a few questions from my homework and I was wondering if I can get some help

sashaice [31]

Well it breaks down into small parts

3 0

2 years ago

Which represents the correct equilibrium constant expression for the reaction below? Cu(s)+2Ag+(aq)<->Cu2+(aq)+2Ag(s)

balu736 [363]

K(eq) = concentration of products/concentration of reactant = [Cu+2] / [Ag+]^2
Activity of pure solid and liquid is taken as 1.
Hence last option is correct.
Hope this helps, have a great day ahead!
I hope this helps you alot
:)
:)
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4 0

2 years ago

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How many more grams should be added

Minchanka [31]

Answer:

50?

I think but not 100% sure if not lmk

4 0

2 years ago

In which of these statements are protons, electrons, and neutrons correctly compared?

algol13

The statement that correctly compares protons, electrons, and neutrons is, "Quarks are present in protons and neutrons but not in electrons". Quarks are tiny particles which compose the neutrons and protons. These quarks in protons and neutrons are linked together by gluons.

5 0

3 years ago

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Ammonia is the most common and well-known weak base. A sample of household ammonia has a pH of 11.8. Determine its concentration

Galina-37 [17]

The given question is incomplete. The complete question is:

A sample of household ammonia has a pH of 11.50. What is the hydronium ion concentration of this solution?

Answer: The hydronium ion concentration of the solution is $1.58\times 10^{-12}M$

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration. Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.

$NH_3+H_2O\rightarrow NH_4^++OH^-$

$pH=-\log [H^+]$

$11.8=-log [H^+]$

$[H^+]=antilog(-11.8)$

$[H^+]=1.58\times 10^{-12}M$

Thus hydronium ion concentration of this solution is $1.58\times 10^{-12}M$

7 0

2 years ago

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