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RoseWind [281]
3 years ago
13

Yo answer my question

Chemistry
2 answers:
Mazyrski [523]3 years ago
5 0

Answer:

Its D

Explanation:

im a pro

igomit [66]3 years ago
3 0

Answer:

C maybe

Explanation:

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In standardizing a naoh solution a student found that 25.55cm of base neutralize exactly 21.35cm of 0.12M HCl find the molarity
nalin [4]

Answer:

O.1M

Explanation:

First let's generate a balanced equation for the reaction

NaOH + HCl —>NaCl + H2O

From the equation,

The ratio of the acid to base is 1:1.

From the question, we obtained the following:

Ma = Molarity of acid = 0.12M

Va = volume of acid = 21.35cm3

Vb = volume of base = 25.55cm3

Mb = Molarity of base =?

We obtained nA(mole of acid) and nB(mole of base) to be 1

The molarity of the base can be calculated for using:

MaVa/ MbVb = nA / nB

0.12x21.35 / Mb x 25.55 = 1

Cross multiply to express in linear form

Mb x 25.55 = 0.12x21.35

Divide both side by 25.55

Mb = (0.12x21.35) / 25.55

Mb = 0.1M

The molarity of the base is 0.1M

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Hydrophilic molecules
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How many moles are in 19.82 g Mg?
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I think it’s 24.305? Not sure
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True or False: Marijuana/Cannabis causes physical dependence
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False

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