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4 years ago

Consider the reaction.

Chemistry

2 answers:

erastova [34]4 years ago

4 0

Answer:

0.089.

Explanation:

For the equilibrium reaction:

Cl₂O + H₂O ⇄ 2HClO,

Kc = [HClO]²/[Cl₂O][H₂O].

[H₂O] = 0.077 M , [Cl₂O] = 0.077 M , [HClO] = 0.023 M.

∴ Kc = [HClO]²/[Cl₂O][H₂O] = (0.023 M)²/(0.077 M)(0.077 M) = 0.08922 ≅ 0.089.

Alex Ar [27]4 years ago

4 0

Answer:

Explanation:

It told me

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Does dilution reduce the amount of conductivity?

lukranit [14]

Answer:

yes

Explanation:

dilution can reduce the amount of conductivity

4 0

3 years ago

How many milliliters of 0.105 M HCl are needed to titrate each of the following solutions to the equivalence point?

kolezko [41]

Answer:

For a: The volume of HCl needed is 4.52 mL

For b: The volume of HCl needed is 25.63 mL

For c: The volume of HCl needed is 43.33 mL

Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base

For a:

We are given:

$n_1=1\\M_1=0.105M\\V_1=?mL\\n_2=1\\M_2=9.50\times 10^{-2}M=0.00950M\\V_2=50.0mL$

Putting values in above equation, we get:

$1\times 0.105\times V_1=1\times 0.00950\times 50\\\\V_1=\frac{1\times 0.00950\times 50}{1\times 0.105}=4.52mL$

Hence, the volume of HCl needed is 4.52 mL

For b:

We are given:

$n_1=1\\M_1=0.105M\\V_1=?mL\\n_2=1\\M_2=0.117M\\V_2=23.0mL$

Putting values in above equation, we get:

$1\times 0.105\times V_1=1\times 0.117\times 23\\\\V_1=\frac{1\times 0.117\times 23}{1\times 0.105}=25.63mL$

Hence, the volume of HCl needed is 25.63 mL

For c:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

Given mass of NaOH = 1.40 g

Molar mass of NaOH = 40 g/mol

Volume of solution = 1 L

Putting values in above equation, we get:

$\text{Molarity of NaOH solution}=\frac{1.40}{40\times 1}\\\\\text{Molarity of NaOH}=0.035M$

We are given:

$n_1=1\\M_1=0.105M\\V_1=?mL\\n_2=1\\M_2=0.035M\\V_2=130mL$

Putting values in above equation, we get:

$1\times 0.105\times V_1=1\times 0.035\times 130\\\\V_1=\frac{1\times 0.035\times 130}{1\times 0.105}=43.33mL$

Hence, the volume of HCl needed is 43.33 mL

6 0

3 years ago

PLEASE HELP ASAP!!!! MUST ANSWER ALL PARTS TO RECIEVE CREDIT!!!!

Vera_Pavlovna [14]

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if something is travelling at a constant velocity are the forces balanced or unbalanced?
Unbalanced

if something changes motion, are forces balanced or unbalanced?
Unbalanced. If the forces on the object is equal and in opposite directions, then the forces are balanced, then there would be no change in motion

what are the three ways to accelerate?
1. A change in velocity
2. A change in direction
3. A change in both velocity and direction

4 0

3 years ago

Which Si unit would be most appropriate for describing the length of a shoe?

marshall27 [118]

Answer:

Millimeters

Explanation:

A kilogram is for weight, Milliliters is volume, Kilometers is length but too big for a shoe, so Millimeters is the answer by elimination.

3 0

3 years ago

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A 825 g iron block is heated to 352 degrees C and is placed in an insulated container (of negligible heat capacity) containing 4