Ask question

Ask question

All categories

2 years ago

12

A(g) + b(g) => ab(g), the rate is 0.239 mol/l.s when the initial concentrations of both a and b are 2.00 mol/l. if the reacti

on is first order in a and second order in b, what is the rate when the initial concentration of a = 4.81 mol/l and that of b = 2.65 mol/l give answer to 2 decimal places.

1 answer:

MatroZZZ [7]2 years ago

4 0

Jjjejcswpwjfmspsocnsnapxisbaadoxjsmalakcn

You might be interested in

Calculate the solubility of hydrogen in water at an atmospheric pressure of 0.380 atm (a typical value at high altitude).

Pani-rosa [81]

The question is incomplete, here is the complete question:

Calculate the solubility of hydrogen in water at an atmospheric pressure of 0.380 atm (a typical value at high altitude).

Atmospheric Gas Mole Fraction kH mol/(L*atm)

$N_2$ $7.81\times 10^{-1}$ $6.70\times 10^{-4}$

$O_2$ $2.10\times 10^{-1}$ $1.30\times 10^{-3}$

Ar $9.34\times 10^{-3}$ $1.40\times 10^{-3}$

$CO_2$ $3.33\times 10^{-4}$ $3.50\times 10^{-2}$

$CH_4$ $2.00\times 10^{-6}$ $1.40\times 10^{-3}$

$H_2$ $5.00\times 10^{-7}$ $7.80\times 10^{-4}$

<u>Answer:</u> The solubility of hydrogen gas in water at given atmospheric pressure is $1.48\times 10^{-10}M$

<u>Explanation:</u>

To calculate the partial pressure of hydrogen gas, we use the equation given by Raoult's law, which is:

$p_{\text{hydrogen gas}}=p_T\times \chi_{\text{hydrogen gas}}$

where,

$p_A$ = partial pressure of hydrogen gas = ?

$p_T$ = total pressure = 0.380 atm

$\chi_A$ = mole fraction of hydrogen gas = $5.00\times 10^{-7}$

Putting values in above equation, we get:

$p_{\text{hydrogen gas}}=0.380\times 5.00\times 10^{-7}\\\\p_{\text{hydrogen gas}}=1.9\times 10^{-7}atm$

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{H_2}=K_H\times p_{H_2}$

where,

$K_H$ = Henry's constant = $7.80\times 10^{-4}mol/L.atm$

$p_{H_2}$ = partial pressure of hydrogen gas = $1.9\times 10^{-7}atm$

Putting values in above equation, we get:

$C_{H_2}=7.80\times 10^{-4}mol/L.atm\times 1.9\times 10^{-7}atm\\\\C_{CO_2}=1.48\times 10^{-10}M$

Hence, the solubility of hydrogen gas in water at given atmospheric pressure is $1.48\times 10^{-10}M$

4 0

2 years ago

Which of the following describe a noble gas?

shutvik [7]

The correct answer is B. Low chemical reactivity

7 0

2 years ago

Which object represents a simple machine? A)battery B)pliers C)Match D)candle

Anna35 [415]

Battery represents a simple machine

6 0

3 years ago

Read 2 more answers

An object has a density of 16.3 g/mL and a volume of 0.46 L. Calculate the

deff fn [24]

Answer:

16.53 pounds

Explanation:

this type of problem needs convertion method we need to convert from grams to pound.

3 0

2 years ago

What are the benefits and drawbacks of using algae as a fuel source?

I am Lyosha [343]

Answer:The Benefit is that it is a good natural fuel for nature and it will not hurt the environment

Explanation:

The drawback is that it will not last long and I don’t know which fuel you mean either for tools and cars,etc or for food but for cars,etc like o said it will not last long and for food it can be poison to the human body

8 0

3 years ago

Read 2 more answers