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zubka84 [21]
3 years ago
6

A balloon is filled to a volume of 1.50 L with 3.00 mol of gas at 25 C. with pressure and temperature held constant, what will b

e the volume of 1.40 moles of gas are added?
Chemistry
1 answer:
bixtya [17]3 years ago
7 0

Answer:

3.2L

Explanation:

PV=nRT

since pressure and temperature are held constant we have V=nR

R is a constant also,

Thus; \frac{v1}{n1}=\frac{v2}{n2}

v1=1.5L  , n1=3mol, n2=1.4mol

\frac{1.5}{3}=\frac{v2}{1.4}

v2=\frac{1.5}{3}*1.4

v2=3.2L

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3.
Temka [501]
Your corrrect answer is option 3
3 0
3 years ago
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For the reactions system 2H2(g) + S2(g) 2H2S(g), a 1.00 liter vessel is found to contain 0.50 moles of H2, 0.020 moles of S2, an
Ne4ueva [31]

Answer:

K = 9.4 *10^5

The reaction favor product formation

Explanation:

Equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium. Also it is defined as the ratio of the product of concentration of products to the product of concentration of reactants each term raised to power equal their stochiometric coefficients.  

so, for the reaction,

  • 2H₂ ₍g₎ + S₂ ₍g₎  → 2H₂S ₍g₎

The equilibrium constant can be expressed as following:

K_{eq}=\frac{[H_2S]^2}{H_2]^2\times [S_2]}

where  concentration of reactants and products is expressed in molarity Molarity=(no of moles/ Volume L)

So,

[H₂] = (0.50 mol / 1 L) = 0.50 M

[S₂] = (0.02 mol / 1 L) = 0.020 M

[H₂S] = (68.5 mol / 1 L) = 68.5 M

∴ K_{eq}=\frac{[68.5]^2}{0.50]^2\times [0.020]}=9.4*10^5

As the value of K is greater than 1, the reaction favor product formation.

4 0
3 years ago
Read 2 more answers
7. What is the mass in grams of 67mol of nitrogen dioxide. NO?
mash [69]

Answer: 2.23 grams

Explanation:

Nitrogen dioxide is an oxide of nitrogen with a chemical formula of NO.

Given that:

mass in grams of NO = ?

Number of moles of NO = 67mol

Molar mass of nitrogen dioxide NO, use the atomic mass of nitrogen = 14g; Oxygen = 16g

NO = (14g + 16g) = 30g/mol

Now, apply the formula:

Number of moles = (Mass in grams / Molar mass)

67 moles = (Mass / 30g/mol)

Mass = (67moles/30g/mol)

Mass = 2.23 grams

Thus, there are 2.23 grams of Nitrogen dioxide present

7 0
3 years ago
A 3.30 M aqueous solution of LiCl has a density of 1.0736 g/mL. If the total mass of the solution is 66.0 g, what masses of solu
Firdavs [7]

Answer:

Mass of solute, LiCl =  8.60g

Mass of solvent, H₂O = 57.4 g

Explanation:

Solution density = Solution mass / Solution volume

1.0736 g/mL = 66 g / Solution volume

66 g / 1.0736 g/mL = 61.47 mL

We know solution's molarity, so with this data we know that 3.30 moles of solute (LiCl) are contained in 1 L of solution (1000 mL)

Let's make the rule of three:

1000 mL contain 3.30 moles of LiCl

61.47 mL would contain (61.47 mL . 3.30 mol) / 1000 mL = 0.203 moles of LiCl

We can find out the mass of solute with the moles. Let's do it!

0.203 mol . 42.39 g/mol = 8.60 g of LiCl.

Total mass = Mass of solvent + Mass of solute

Let's find out the mass of solvent, to finish the problem

66 g = Mass of solvent + 8.60 g

66 g - 8.60 g = Mass of solvent → 57.4 g

6 0
3 years ago
Read 2 more answers
What determines the amount of energy in a chemical bonds?
kaheart [24]
The power of a bond, single, double and triple.
8 0
3 years ago
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