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3 years ago

What volume of a 0.232 M hydrobromic acid solution is required to neutralize 10.8 mL of a 0.162 M potassium hydroxide solution?

Chemistry

1 answer:

Naily [24]3 years ago

3 0

Answer:

156 mL hydrobromic acid

Explanation:

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What is the average distance between oxygen molecules at stp?

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3 years ago

What mass of sucrose (C12H22O11) should be combined with 546 g of water to make a solution with an osmotic pressure of 8.80 atm

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Answer: The mass of sucrose required is 69.08 g

Explanation:

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iMRT$

Or,

$\pi=i\times \frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}\times RT$

where,

$\pi$ = osmotic pressure of the solution = 8.80 atm

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (sucrose) = ?

Molar mass of sucrose = 342.3 g/mol

Volume of solution = 564 mL (Density of water = 1 g/mL)

R = Gas constant = $0.0821\text{ L.atm }mol^{-1}K^{-1}$

T = Temperature of the solution = 290 K

Putting values in above equation, we get:

$8.80atm=1\times \frac{\text{Mass of sucrose}\times 1000}{342.3\times 546}\times 0.0821\text{ L.atm }mol^{-1}K^{-1}\times 290K\\\\\text{Mass of sucrose}=\frac{8.80\times 342.3\times 546}{1\times 1000\times 0.0821\times 290}=69.08g$

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3 years ago

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3 years ago

Toluene can be partially oxidized to benzoic acid and water in a low pressure vapor phase reaction. Initially, 10 moles of tolue

emmainna [20.7K]

Answer:

0.5

See explaination

Explanation:

Toluene can be partially oxidized to benzoic acid and water in a low pressure vapor phase reaction. In most occassions this can be allowed till all units becomes Oxygen.

Check attachment for further and detailed solution.

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