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Contact [7]
2 years ago
10

One mole of h2s gas escapes from a container by effusion in 77 seconds how long would it take one mole of nh3 gas to escape from

the same container
Chemistry
2 answers:
tatuchka [14]2 years ago
8 0

Answer:

54.4 seconds

Explanation:

The molar masses of H2S and NH3 are 34 and 17 g/mol, respectively. The equation that would best represent the given is,

                                 Rate A/Rate B = √(molar mass B/molar mass A)

Substituting,

                              x/77 = √(17 /34 )

                                x = 54.4

Thus, it will take 54.4 seconds for NH3 to travel through the container. 

gizmo_the_mogwai [7]2 years ago
3 0
The molar masses of H2S and NH3 are 34 and 17 g/mol, respectively. The equation that would best represent the given is,
                                  Rate A/Rate B = √(molar mass B/molar mass A)
Substituting,
                               x/77 = √(17 /34 )
                                 x = 54.4
Thus, it will take 54.4 seconds for NH3 to travel through the container. 
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Why is it important to have regular supervision of the weight and measurements in the market
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Answer:

Supervision of weights and measures promotes accurate measurements of goods and services to ensure that everybody gets a fair trade in the marketplace. Not so coincidentally it also is a deterrent to ensure that traders are being honest in their trade practises.

Explanation:

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2 years ago
The oxidation numbers of nitrogen in NH3, HNO3, and NO2 are, respectively: -3, -5, +4 +3, +5, +4 -3, +5, -4 -3, +5, +4
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In NH3 , let oxidation number of N be x

x + (+1)3 = 0

x = -3

In HNO3 , let oxidation number of N be x

1 + x + (-2)3 = 0

x = +5

In NO2 , let oxidation number of N be x

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5 0
2 years ago
A chemist heats 100.0 g of FeSO4 x 7H2O in a crucible to drive off the water. If all the water is driven off, what is the mass o
Ierofanga [76]
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M(FeSO₄)=151.9 g/mol

m(FeSO₄*7H₂O)/M(FeSO₄*7H₂O)=m(FeSO₄)/M(FeSO₄)

m(FeSO₄)=M(FeSO₄)m(FeSO₄*7H₂O)/M(FeSO₄*7H₂O)

m(FeSO₄)=151.9*100.0/278.0=54.6 g

m(FeSO₄)=54.6 g


4 0
2 years ago
Read 2 more answers
HELP
agasfer [191]

Answer:

3.02× 10²⁴ atoms

Explanation:

Given data:

Number of nitrogen atoms = ?

Number of moles of N₂O = 2.51 mol

Solution:

1 mole contain 2 mole of nitrogen atoms.

2.51 × 2 = 5.02  mol

According to Avogadro number,

1 mole = 6.022 × 10²³ atoms

5.02  mol ×  6.022 × 10²³ atoms / 1 mol

30.2 × 10²³ atoms

3.02× 10²⁴ atoms

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C. The salt bridge maintains the flows of ions and allows electrons to move from the anode to the cathode. 
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