3 years ago

Answer correctly for a brainleist! :)

Chemistry

1 answer:

RoseWind [281]3 years ago

8 0

Answer:

summer

Explanation:

Why because the earth is around the sun the

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Why is it that 85.48 rounded to two significant figures is 85 and not 86?

Gelneren [198K]

Answer:

See below.

Explanation:

That is because of the .48.

85.48 is closer to 85 than 86.

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3 years ago

Suppose you are working with a NaOH stock solution but you need a solution with a lower concentration for your experiment. Calcu

Svet_ta [14]

Answer:

$V_1=23.3~mL$

Explanation:

In this case, we have a dilution problem. We have to remember that in the dilution procedure we go from a solution with higher concentration to a solution with lesser concentration. Therefore we have to start with the dilution equation:

$C_1*V_1=C_2*V_2$

Now we can identify the variables:

$C_1=~1.475_M$

$V_1=~?$

$C_2=~0.1374_M$

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If we plug all the values into the equation:

$1.475_M*V_1=0.1374_M*250.0~mL$

And we solve for $V_1$ :

$V_1=\frac{0.1374_M*250.0~mL}{1.475_M}$

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I hope it helps!

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3 years ago

How many grams of silver chromate, Ag2CrO4, are produced from 57.7

Anastasy [175]

48.3 g AgNO3 / 169.9 g/mol = 0.284 moles AgNO3
0.284 mol AgNO3 X (1 mol Ag2CrO4/2 mol AgNO3) = 0.142 mol Ag2CrO4
0.142 mol Ag2CrO4 X 331.7 g/mol = 47.1 g Ag2CrO4

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3 years ago

Consider the development of atomic theory. The last piece of the atomic puzzle was the discovery of

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Answer:

The answer will be B

Explanation:

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3 years ago

Based on these data, what is the average atomic mass of element b? 10.01 10.51 10.81 11.01

Lelechka [254]

The right answer is C. 10.81