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3 years ago

Which of the following is an example of a solution?

Chemistry

1 answer:

romanna [79]3 years ago

7 0

Answer:

Explanation:

The other poster is wrong that is just a mixture, the sugar dissolved in tea tho is the right answer 90% sure

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Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide and chlorine at elevated temperatures: CO(g) + Cl2

lapo4ka [179]

Answer: Concentration of $CO$ = 0.328 M

Concentration of $Cl_2$ = 0.328 M

Concentration of $COCl_2$ = 0.532 M

Explanation:

Moles of $CO$ and $Cl_2$ = 0.430 mole

Volume of solution = 0.500 L

Initial concentration of $CO$ and $Cl_2$ = $\frac{moles}{volume}=\frac{0.430}{0.500}=0.860M$

The given balanced equilibrium reaction is,

$CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)$

Initial conc. 0.860M 0.860M 0

At eqm. conc. (0.860-x) M (0.860-x) M (x) M

The expression for equilibrium constant for this reaction will be,

$K_c=\frac{[COCl_2]}{[CO][Cl_2]}$

Now put all the given values in this expression, we get :

$4.95=\frac{x}{(0.860-x)^2}$

By solving the term 'x', we get :

x = 0.532 M

Thus, the concentrations of $CO,Cl_2\text{ and }COCl_2$ at equilibrium are :

Concentration of $CO$ = (0.860-x) M =(0.860-0.532) M = 0.328 M

Concentration of $Cl_2$ = (0.860-x) M = (0.860-0.532) M = 0.328 M

Concentration of $COCl_2$ = x M = 0.532 M

3 0

3 years ago

A teacher wrote the following part of a balanced chemical equation: Cu+2AgNO 3 To show the conservation of matter in the chemica

Llana [10]

2, because there are 2 silver atoms on the left

7 0

3 years ago

Read 2 more answers

A metal melts at 450 degrees celsius. Is this property of the metal classified as chemical or physical?

Romashka-Z-Leto [24]

It's a physical property because it doesn't change the element of the metal.
does this make sense?

8 0

3 years ago

The atmospheric pressure in Denver, Colorado, is usually about 84.00 kPa. What is this pressure in atm and torr units?

tresset_1 [31]

Answer:

84.00 kPa = 630.084 torr

Formula for kPa to torr: For an approximate result, multiply the pressure value by 7.501. 84* 7.501

84.00 kPa = 0.831683168 atm

Formula for kPa to atm: for an approximate result, divide the pressure value by 101. 84/101

7 0

3 years ago

6 moles of H2O is equal to how many molecules?

bagirrra123 [75]

A mole is equal to 6.02x10^23, so one mole of H2O has 6.02x10^23 water molecules. To get how many of them are in 6 moles you need to multiple it by six:
(6.02x10^23)x6= 3.612x10^24
So, there’s 3.612x10^24 water molecules in 6 moles of water

4 0

3 years ago