4 years ago

One useful tool that may help a scientist interpret data by revealing unexpected patterns is a

Chemistry

1 answer:

Andrew [12]4 years ago

7 0

Graph would be the answer.

I hope this helps. :)

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2. If 7.82 mol of nitrogen, N2, are reacted with excess hydrogen, what is the theoretical

Vinvika [58]

The answer would be 7

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3 years ago

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A solution has a pH = 4.63. What is the [H3O+] concentration?

LUCKY_DIMON [66]

Explanation:

The pH of a solution can you be found by using the formula

$pH = - log [ { H_3O}^{+}]$

Since we are finding the [H3O+] , substitute the value of the pH and find it's antilog

We have

$4.63 = - log[ { H_3O}^{+}] \\ [ { H_3O}^{+}] = {10}^{ - 4.63} \\ \\ = 2.344 \times {10}^{ - 5} mol {dm}^{ - 3}$

Hope this helps you

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3 years ago

During science lab, Jacob mixes together sodium hydroxide (NaOH) and hydrochloric acid (HCl). The two chemicals react to form so

Svet_ta [14]

The answer is B. Because reactions are what goes in. Products are what comes out

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3 years ago

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Please mark all that apply!

Nitella [24]

Answer:

F G there you go the guy on top is right

Explanation:

F G

7 0

4 years ago

What is the percentage of water in the hydrate CoCl2 • 6H2O? Show your work.

Lelu [443]

Hello!

First you have to find the molar mass of the molecules

C = 12
O = 16
2Cl = 71
6H2O = 108

Add them up to find the total molar mass

12 + 16 + 71 + 108 = 207g/mol

Divide the amount of water by the total molar mass

108 / 207 = 0.5217

Convert this to a decimal

0.5217 = 52.17%

The answer is 52.17%

Hope this helps!

7 0

4 years ago