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3 years ago

In a chemical reaction, which symbol should be used to indicate a substance is in solution

Chemistry

1 answer:

tresset_1 [31]3 years ago

4 0

The symbol used to indicate a substance is (aq).

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The equilibrium constant for the reaction is 1.1 x 106 M. HONO(aq) + CN-(aq) ⇋ HCN(aq) + ONO-(aq) This value indicates that

kakasveta [241]

The given question is incomplete. The complete question is given here :

The equilibrium constant for the reaction is $1.1\times 10^6$ M.

$HONO(aq)+CN^- (aq)\rightleftharpoons HCN(aq)+ONO^-(aq)$

This value indicates that

A. $CN^-$ is a stronger base than $ONO^-$

B. HCN is a stronger acid than HONO

C. The conjugate base of HONO is $ONO^-$

D. The conjugate acid of CN- is HCN

Answer: A. $CN^-$ is a stronger base than $ONO^-$

Explanation:

Equilibrium constant is the ratio of product of the concentration of products to the product of concentration of reactants.

When $K_{p}>1$ ; the reaction is product favoured.

When $K_{p};$ ; the reaction is reactant favored.

$When K_{p}=1$ ; the reaction is in equilibrium.

As, $K_p>>1$ , the reaction will be product favoured and as it is a acid base reaction where $HONO$ acts as acid by donating $H^+$ ions and $CN^-$ acts as base by accepting $H^+$

Thus $HONO$ is a strong acid thus $ONO^-$ will be a weak conjugate base and $CN^-$ is a strong base which has weak $HCN$ conjugate acid.

Thus the high value of K indicates that $CN^-$ is a stronger base than $ONO^-$

7 0

2 years ago

The model shown in the diagram describes how the tongue works. When a red block is placed into a the correctly shaped hole, the

rosijanka [135]

Answer:

d and d

Explanation:

6 0

3 years ago

La Niña generally causes _____ in the Americas and _____ in Australia and Asia.

Kitty [74]

The correct answer is less wind and more wind. Good luck :)

5 0

3 years ago

Plssss help for a and b and if possible pls give an explanation but you don’t have to!

Pepsi [2]

Answer:

0 net force it is balanced

Explanation:

If the amount of force is the same on both sides the net force equals 0

7 0

3 years ago

Determine the amount of energy (heat) in joules required to raise the temperature of 20g of gold from 5°C to 37°C.

insens350 [35]

Answer:

The answer to your question is E = 83.2 J

Explanation:

Data

Element: Gold

Initial temperature = T1 = 5°C

Final temperature = T2 = 37°C

mass = 20 g

Specific heat = 130 J/kg°K

Process

1.- Convert temperature to kelvin

T1 = 273 + 5 = 278°K

T2 = 273 + 37 = 310°K

2.- Convert mass to kg

1000 g --------------- 1 kg

20 g --------------- x

x = (20 x 1)/1000

x = 0.02 kg

3.- Formula

E = mC(T2 -T1)

4.- Substitution

E = (0.02)(130)(310 - 278)

E = (0.02)(130)(32)

E = 83.2 J

3 0

2 years ago