Chemistry, 25.02.2021 05:50 pao2425

If 10 grams of oxygen are combined with 1 grams of hydrogen, how much water would be formed?

Answers: 3

Show answers

Answers

Answer from: noslengerman

36 g of water will produced.

Explanation:

Given data:

Mass of oxygen = 32 g

Mass of hydrogen = 4 g

Mass of water = ?

Solution:

First of all we will write the balance chemical equation.

2H₂ + O₂ → 2H₂O

Moles of oxygen = mass / molar mass

Moles of oxygen = 32 g/ 32 g/mol

Moles of oxygen = 1 mol

Moles of hydrogen = mass / molar mas

Moles of hydrogen = 4 g/ 2 g/mol

Moles of hydrogen = 2 mol

Now we compare the moles of water with oxygen and hydrogen.

O₂ : H₂O

1 : 2

H₂ : H₂O

2 : 2

The moles of water produce by hydrogen and oxygen are same.

Mass = moles × molar mass

Mass = 2 mol × 18 g/mol = 36 g

Explanation:

Answer from: Quest

here we have to get the change of moles on decrease the volume of the reaction in gas phase.

the per the given options it will decrease by (d) 11-50%

we know, on decreasing the volume of the gas phase reaction the reaction moves to the product side.

the reaction: so₂cl₂ (g) = so₂ (g) + cl₂ (g) total

the moles at equilibrium: 1 - α α α = 1+α

concentrations: 1 - α α α = 1 + α

(concentration = moles/volume, as volume is 1 l)

(where α is the degree of dissociation)

now the dissociation constant in terms of concentration is :

$k_{c}$ = $\frac{[so2cl2] x [cl2]}{[so2cl2]}$

or, $\frac{\alpha ^{2} }{(1-\alpha)v }$

or, $k_{c}$ = $\frac{\alpha ^{2} }{(1-\alpha) }$ (at v = 1l)

the reaction: so₂cl₂ (g) = so₂ (g) + cl₂ (g) total

the moles at equilibrium: 1 - α α α = 1+α

concentrations: (1 - α)/0.5 α/0.5 α/0.5 = (1 + α)/0.5

thus, the dissociation constant in terms of concentration is :

$\frac{[so2cl2] x [cl2]}{[so2cl2]}$

or, $\frac{\alpha ^{2} }{(1-\alpha)0.5 }$

$\frac{\alpha ^{2} }{(1-\alpha) }$ = $\frac{\alpha ^{2} }{(1-\alpha) 0.5}$

so, the change of 1 : 1/0.5

or, 1: 2

thus it will decrease by 50%.

or, as per the given options it will decrease by 11-50%

Answer from: Quest

my dad did alot of meth and ace cheeks

Another question on Chemistry

Chemistry, 21.06.2019 20:30

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Answers: 2

Answer

Chemistry, 21.06.2019 23:00

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Answers: 2

Answer

Chemistry, 22.06.2019 09:30

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Answers: 2

Answer

Chemistry, 22.06.2019 10:30

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%