2 years ago

Who is your favorite scientist?

Chemistry

1 answer:

slega [8]2 years ago

7 0

Wait a second shoudl YOU do this one cause this is more of a YOU how am i suppose to know who you like?

i could give you a scientist just try albert Einstein

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A solution is prepared by dissolving 8.75 grams of sodium chloride in enough volume of water to produce 112.0 grams of the NaCl

ICE Princess25 [194]

Answer : The percent by mass of the solution is 7.81 %

Explanation : Given,

Mass of NaCl = 8.75 g

Mass of solution = 112.0 g

Now we have to determine the percent by mass of the solution.

$\text{Mass percent}=\frac{\text{Mass of NaCl}}{\text{Mass of solution}}\times 100$

Putting values in above equation, we get:

$\text{Mass percent}=\frac{8.75g}{112.0g}\times 100=7.81\%$

Therefore, the percent by mass of the solution is 7.81 %

6 0

3 years ago

A sample of gas occupies a volume of 73.7 mL. As it expands, it does 133.7 J of work on its surroundings at a constant pressure

katen-ka-za [31]

In thermodynamics, work performed by a system is the energy transferred by the system to its surroundings. It can be calculated by the expression:

W = PdV

Integrating,

We will have,

W = P(V2 - V1)
133.7 (1 litre-atm / 101.325 Joule) ( 760 Torr / atm ) = 783 (V2 - .0737 )
V2 = 1.35 L

Hope this answers the question. Have a nice day.

7 0

3 years ago

For the procedural error, indicate if the error will affect the actual yield of copper(II) saccharinate product and if it does,

jolli1 [7]

Answer:

Lowers the actual yield

Explanation:

5 0

2 years ago

How does the sun impact the speed of the water cycle?

IceJOKER [234]

the sun makes it evaporate quicker if it is there for longer