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2 years ago

How do you determine the proper number of significant figures of a liquid using a graduated cylinder

1 answer:

4 0

You determine the correct number of significant figure of a measurement in a graduated cylinder by looking at the smallest division on the graduated cylinder. If the division is divided up to the ones place, you can still read the half of that division or the .50 measurement. So, you can have until the tenths place in your measurement.

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A solution has a oh- = 1 x 10-5 m what are the h30 and the ph of the solution

Deffense [45]

I think it's easiest to find the pOH from the given [OH-] first.

-log(1x10^-5)

pOH=5

Then find the pH.

pOH+pH=14

5+pH=14

pH=9

Then find the [H+] using the pH.

antilog(-9) (if you dont have an antilog button use 10^-9)

[H+]=1x10^-9

3 0

2 years ago

Read 2 more answers

What is the mass of 6.75 moles of CO₂?

ikadub [295]

Hi there!
Thank you for choosing Brainly.

1 mole = 44.0095

So take that number and multiply it by 6.75.

You then get... 297.0641

Have a nice day.
~Brooke

8 0

3 years ago

Rosa preparo una disolución de agua salada mezclando 120 mg de agua con 5 mg de sal comun ¿ que concentración tiene la disolució

enot [183]

Concentration of the solution (% mass) = 4%

<h3>Further explanation</h3>

<em>Rosa prepared a salt water solution by mixing 120 mg of water with 5 mg of common salt, what concentration is the solution she prepare?</em>

<em />

<em /> $\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%$ <em />

mass solute=mass of salt=5 mg

mass solution :

mass solute(salt)+mass solvent(water) :

$\tt 5~mg+120~mg=125~mg$

$\tt \%mass=\dfrac{5~mg}{125~mg}\times 100\%\\\\\%mass=4$

3 0

3 years ago

For Gay-Lussac's law, temperature is measured in _____.

Thepotemich [5.8K]

For Scientist Joseph Louis Gay-Lussac's law, temperature is measured on an absolute scale, specifically Kelvins or k. The formula may be expressed in P/T=k (P over T equals k). The answer to this question is 'kelvins'. I hope this helps.

7 0

3 years ago

for each metal that participated in a chemical change, right type of metal that is based on your examination of the periodic tab

CaHeK987 [17]

I guess the answer <span>can be an alkali metal, alkaline earth metal, or transition metals.

Hope this helps :)

</span>

3 0

3 years ago