Chemistry, 22.01.2020 02:31 jamie316

Write the equilibrium constant expression, k, for the following reaction. enter the compounds in the order given in the reaction. if either the numerator or denominator is blank, enter 1
(aq) h2o(l) h3o (aq) (aq)

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Answer from: blacee01

This question is an incomplete question, here is a complete question.

Write the equilibrium constant expression, K, for the following reaction. Please enter the compounds in the order given in the reaction. If either the numerator or denominator is blank, please enter 1

$HNO_2(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+NO_2(aq)$

Answer : The correct expression for equilibrium constant will be, $K=[tex]K=\frac{[H_3O^+][NO_2]}{[HNO_2]}$

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

$HNO_2(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+NO_2(aq)$

The expression of will be,

$K=\frac{[H_3O^+][NO_2]}{[HNO_2]}$

Therefore, the correct expression for equilibrium constant will be, $K=\frac{[H_3O^+][NO_2]}{[HNO_2]}$

Answer from: Quest

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Answer from: Quest

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

Write 15 uses of a mercury barometer along with its characterestics

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Write the equilibrium constant expression, k, for the following reaction. enter the compounds in th...

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