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3 years ago

Name the compound and Determine the number of atoms. 22g NH3

Chemistry

1 answer:

Bezzdna [24]3 years ago

4 0

Answer:

Compound is: Ammonia

Number of NH3 Molecules: 7.7905x10^23

Number of N atoms: 7.7905x10^23

Number of H atoms: 2.337x10^24

Explanation:

In order to obtain number of particles: We first need to calculate number of moles which is equal Mass/Molar mass (N=14 H=1)

Thus Number of moles equal 22/14+3 = 1.294117647 Moles

Number of particles equal Number of moles multiply Avogadro's number = 1.294117647 x 6.02x10^23 = 7.7905x10^23 Molecules of NH3

Since that each molecule contains one Nitrogen atom therefore, Number of molecules = number of atoms while each molecule contains 3 Hydrogen atoms therefore, Number of hydrogen atoms = 3x Number of Molecules = 2.337x10^24

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ASHA 777 [7]

Answer:

a. $H_2+Cl_2 \rightleftharpoons 2HCl$

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Explanation:

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a. In this case, according to the unbalanced chemical reaction we need to balance HCl as shown below:

$H_2+Cl_2 \rightleftharpoons 2HCl$

In order to reach 2 hydrogen and chlorine atoms at both sides.

b. Here, given the concentrations at equilibrium and the following equilibrium expression, we have:

$K=\frac{[HCl]^2}{[H_2][Cl_2]}$

Therefore, we plug in the data to obtain:

$K=\frac{(0.0625)^2}{(0.00450)(0.00450)}\\\\K=192.9$

c. Finally, we infer that since K>>1 the forward reaction towards products is favored.

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arlik [135]

Answer:

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