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Advocard [28]
3 years ago
11

1. Rank the following solutions in order of increasing

Chemistry
1 answer:
babunello [35]3 years ago
8 0

The order of the solutions from lowest to highest concentration : A, B, C

<h3>Further explanation</h3>

Given

the following solutions

Required

order of increasing  concentration

Solution

Molarity shows the number of moles of solute in every 1 liter of solution.

\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}

Solution A : 0.5 moles : 2 L solution = 0.25 M

Solution B : 1 moles : 3 L solution = 0.33 M

Solution C : 1.5 moles : 4 L solution = 0.375 M

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For the reaction:
Zepler [3.9K]

Answer:

The equilibrium constant for CO now

= 0.212 M

For H₂O

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

Explanation:

The chemical equation for the reaction is:

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

The ICE Table for this reaction can be represented as follows:

                   CO(g)      +   H2O(g)   ⇌    CO2(g)   +     H2(g)

Initial            0.5                0.5                   -                      -

Change        -x                   -x                      + x                + x

Equilibrium   0.5 -x           0.5 - x

The equilibrium constantK_c = \dfrac{[x][x]}{[0.5-x][0.5-x]}

K_c = \dfrac{[x]^2}{[0.5-x]^2}

where; K_c = 1.845

1.845 = \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}^2

\sqrt{1.845}= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583 (0.5-x) = x

0.67915  - 1.3583x = x

0.67915  = x +  1.3583x

0.67915 = 2.3583x

x = 0.67915/2.3583

x = 0.2880

The equilibrium constant for CO now = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For H₂O = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

3 0
3 years ago
True or false: Gravity plays an important role in the formation of stars.
KiRa [710]

Answer:

the the answer iss ( true )

8 0
3 years ago
Do it and I will give brainliest
PSYCHO15rus [73]

Answer:

Hi there!

Your answer is

Mass: 12

&

Electrons:5

Explanation:

The electrons in a neutral atom is the same as the # of Protons!

5 0
3 years ago
What amount of heat is removed to lower the temperature of 80 grams of water from 75º C to 45º C? The specific heat of liquid wa
Sindrei [870]

Answer:The correct answer option A.

Explanation:

Q= m\times c\times \Delta T

Q= heat removed from the water

m= mass of the water = 80 grams

c = heat capacity of water= 4.18 J/g°C      

\Delta T={\text{Change in temperature}}=45^oC-75^oC=-30^oC  

Q=80g\times 4.18J/g^oC\times(-30^oC)

Q = -10,032 joules \approx -10,000 Joules

Negative sign indicates that heat was removed from the water.

Heat removed from the water of 80 gram of water is 10,032 Joules.Hence, the correct answer option A.

8 0
3 years ago
Read 2 more answers
A g[dsoflghdfkjlghskdjfhgkjhsdfgsjkhgkjfhsgkjgsdkfjhgsdjfhgsdfhgsdfjhgsdf
Setler79 [48]

Answer:

same

Explanation:

7 0
3 years ago
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