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adelina 88 [10]
3 years ago
5

I NEED HELP PLEASE !!!!!

Chemistry
2 answers:
Andrei [34K]3 years ago
4 0
Second choice : technology has replaced humans needs
Jobisdone [24]3 years ago
3 0

Answer: My opinion is the second one because a lot of humans uses technology and technilogy replaces a lot of stuff.

Explanation:

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

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V_2=~250.0~mL

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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What is the name of the salt with the structure K2S
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How does the amount of carbon dioxide affect the rate of photosynthesis?
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An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.

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