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damaskus [11]
3 years ago
13

Help me plsss

Chemistry
1 answer:
Yuki888 [10]3 years ago
8 0

Answer:

8.34

Explanation:

1) how much moles of NH₃ are in the reaction;

2) how much moles of H₂ are in the reaction;

3)  the required mass of the H₂.

all the details are in the attachment; the answer is marked with red colour.

Note1: M(NH₃) - molar mass of the NH₃, constant; M(H₂) - the molar mass of the H₂, constant; ν(NH₃) - quantity of NH₃; ν(H₂) - quantity of H₂.

Note2: the suggested solution is not the shortest one.

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A 1.000 g sample of nitrogen combined with a 0.0720 g sample of hydrogen to form N2H2. What compound is formed if 1.000 g of nit
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Answer:

N₂H₆

Explanation:

A 1.000 g sample of nitrogen combined with a 0.0720 g sample of hydrogen to form N₂H₂ .

1.000 g of nitrogen combines with 0.2160 g of hydrogen in the next compound .

In this compound the component of nitrogen remains the same but the component of hydrogen becomes .2160 / .0720 = 3 times .

Hence component of hydrogen in the new compound will change from

H2 to H6 .

Hence the chemical formula of new compound will be

N₂H₆ .

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What are the number of protons, neutrons, and electrons in 19 F<br><br> 9?
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Answer:

This isotope of fluorine has 9 protons, 9 electrons and 10 neutrons.

Explanation:

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A body-centered cubic unit cell has an edge length of 588 pm. What is the radius of the atoms composing the unit cell?
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The active planning stage of change is ____________. Group of answer choices maintenance action contemplation preparation
AfilCa [17]

Answer:

-Determination -  in this stage, people have make commitment to change the bad habit as soon as possible. it is stage of planning.

Explanation:

There are six stages of change that have a unique role in changing one's behavior. The stages are:

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7 0
3 years ago
Calculate the pH during the titration of 20.00 mL of 0.1000 M dimethylamine, (CH3)2NH(aq), with 0.1000 M HCl(aq) after 21.23 mL
Evgesh-ka [11]

The pH value of the solution is mathematically given as

pH=2.35

<h3>What pH value of the solution?</h3>

Question Parameters:

pH during the titration of 20.00 mL of 0.1000 M dimethylamine,

with 0.1000 M HCl(aq) after 21.23 mL of the acid

Generally, the equation for the  Chemical Reaction  is mathematically given as

(CH3)2NH(aq), +Hcl   ---> <---- (CH3)2NH2Cl(aq)

Therefore

HCl=\frac{0.186mol}{41.86}

HCL=0.00444M

WHere

HClaq--->H+(aq)+Cl-(aq)

Hence

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For more information on Chemical Reaction

brainly.com/question/11231920

8 0
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