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3 years ago

Does it make a difference if the jar is square or round? What about the size of the jar or glass?

Chemistry

1 answer:

morpeh [17]3 years ago

4 0

no it doesn't make differance at all ...only the material used make difference

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Mixed Practice:

Afina-wow [57]

Given

Mass of NO - 824 g

Molar mass of NO - 30.01g/mol

No of moles of NO = Given mass/Molar mass

No of moles of NO = 824/30.01= 27.45 mole

Hence 27.5 moles of NO are formed!

5 0

3 years ago

The empirical formula of styrene is CH; its molar mass is 104.1 g/mol. What is the molecular formula of styrene?

BlackZzzverrR [31]

The molecular formula of styrene is B) C8H8.

Styrene is an organic compound with a chemical formula of C6H5CH=CH2

7 0

3 years ago

Cleaner shrimp are a species of shrimp that clean parasites from other organisms. Fish allow the shrimp to eat the parasites in

Blizzard [7]

The first one is B. Mutualistic because mutual agreements is when both parties agree and benefit from the decision (like the fish and the shrimp) The second one is A. The shrimp and the fish benefit each other. Because it is a mutualistic relationship both the shrimp and the fish get something out of it.

5 0

3 years ago

Which mineral property is the least reliable for identifying a mineral?

earnstyle [38]

The answer is color as the least reliable

8 0

3 years ago

Read 2 more answers

The concentration of protein in a urine sample is calculated to be 2.77 μg/mL. What is the concentration of this solution in uni

maxonik [38]

Answer:

The concentration of this solution in units of pounds per gallon is $2.776*10^{-5} \frac{lb}{gal}$

Explanation:

Units of measurement are established models for measuring different quantities. The conversion of units is the transformation of a quantity, expressed in a certain unit of measure, into an equivalent one, which may or may not be of the same system of units.

In this case, the conversion of units is carried out knowing that 1 μg are equal to 2.205*10⁻⁹ Lb and 1 mL equals 0.00022 Gallons. So

$2.77 \frac{ug}{mL} = \frac{2.77 ug}{mL}$

If 1 μg equals 2.205*10⁻⁹ lb, 2.77 μg how many lb equals?

$lb=\frac{2.77ug*2.205*10^{-9}lb }{1ug}$

lb=6.10785*10⁻⁹

So, 2.77 μg= 6.10785*10⁻⁹ lb

Then:

$2.77 \frac{ug}{mL} = \frac{2.77 ug}{mL}=\frac{6.10785*10^{-9}lb }{mL} =\frac{6.10785*10^{-9}lb }{0.00022 gal} =\frac{6.10785*10^{-9}lb }{0.00022 gal}$

You get:

$2.77 \frac{ug}{mL} = 2.776*10^{-5} \frac{lb}{gal}$

The concentration of this solution in units of pounds per gallon is $2.776*10^{-5} \frac{lb}{gal}$

6 0

3 years ago