3 years ago

18. The mass of a metal ring is 116 g. You fill a graduated cylinder with 15 mL of

Chemistry

1 answer:

AnnyKZ [126]3 years ago

5 0

18 B 19 C and 20 A

cuz that's it I hope it helps you

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Consider the following reaction where K. = 154 at 298 K: 2NO(g) + Brz(9) 2NOBr(g) A reaction mixture was found to contain 2.69x1

bekas [8.4K]

Explanation:

$2NO(g) + Br_2(g)\rightleftharpoons 2NOBr(g)$

Equilibrium constant of reaction = $K=154$

Concentration of NO = $[NO]=\frac{2.69\times 10^{-2} mol}{1 L}=2.69\times 10^{-2} M$

Concentration of bromine gas = $[Br_2]=\frac{3.85\times 10^{-2} mol}{1 L}=3.85\times 10^{-2} M$

Concentration of NOBr gas = $[Br_2]=\frac{9.56\times 10^{-2} mol}{1 L}=9.56\times 10^{-2} M$

The reaction quotient is given as:

$Q=\frac{[NOBr]^2}{[NO]^2[Br_2]}=\frac{(9.56\times 10^{-2} M)^2}{(2.69\times 10^{-2} M)^2\times 3.85\times 10^{-2} M}$

$Q=328.06$

$Q>K$

The reaction will go in backward direction in order to achieve an equilibrium state.

1. In order to reach equilibrium NOBr (g) must be produced. False

2. In order to reach equilibrium K must decrease. False

3. In order to reach equilibrium NO must be produced. True

4. Q. is less than K . False

5. The reaction is at equilibrium. No further reaction will occur. False

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3 years ago

How many moles of SO3 are in 2.4x10^24 molesculea of SO3

yawa3891 [41]

there are 4.0 moles of SO3

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3 years ago

a company has designed a new product and tested the porotype which is the next step in product development

Masja [62]

I’d say market and distribution would be the next step

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Answer:

The amount/type of stain

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You would want to ensure that the stain was the same in both samples.

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3 years ago

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