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3 years ago

when this chemical equation is correctly balanced what is the coefficient of the nal molecule I2+Na2S2O3+Nal+Na2S4O6

Chemistry

1 answer:

Kitty [74]3 years ago

4 0

I₂ + 2Na₂S₂O₃ → 2NaI + Na₂S₄O₆

k(NaI)=2

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Consider the following reaction: Consider the reaction 2NO(g)+Br2(g)⇌2NOBr(g) ,Kp=28.4 at 298 K In a reaction mixture at equilib

Vitek1552 [10]

Answer: partial pressure of NOBr is 7792 atm

Explanation:

Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.

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

Equilibrium constant is given as:

$K_{p}=\frac{[p_{NOBr}]^2}{[p_{NO}]^2\times [p_{Br_2}]^1}$

$28.4=\frac{[p_{NOBr}]^2}{[(119)^2\times (151)^1}$

$[p_{NOBr}]=7792$ atm

Partial pressure of NOBr is 7792 atm

4 0

3 years ago

How many moles of nitrogen gas are in a flask with a volume of 0.25 L at a pressure of 2.96 atm and a temperature of 300 K

aniked [119]

Answer: The number of moles of nitrogen gas is 0.030 moles

Explanation:

To calculate the number of moles of nitrogen, we use the equation given by ideal gas which follows:

$PV=nRT$

where,

P = pressure of the nitrogen gas = 2.96 atm

V = Volume of the gas = 0.25 L

T = Temperature of the gas = 300 K

R = Gas constant = $0.0821\text{ L. atm }mol^{-1}K^{-1}$

n = number of moles of nitrogen gas = ?

Putting values in above equation, we get:

$2.96atm\times 0.25L=n\times 0.0821\text{ L. atm }mol^{-1}K^{-1}\times 300K\\\\n=\frac{2.96\times 0.25}{0.0821\times 300}=0.030mol$

Hence, the number of moles of nitrogen gas is 0.030 moles

6 0

3 years ago

Which type of cell is larger? Prokaryotic Eukaryotic

nordsb [41]

Answer:

Eukaryotic

Explanation:

larger eukaryotic cells have evolved different structural adaptations to enhance cellular transport

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kogti [31]

Answer:

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Explanation:

Source(s):Science News for Students

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fredd [130]

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