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2 years ago

12

What is f

or the following equilibrium concentration of each substance is :
$2SO_2(g)+O_2\rightleftharpoons2SO_3(g)$

1 answer:

Zanzabum2 years ago

7 0

As per the question ,

$2SO_2(g)+O_2\rightleftharpoons2SO_3(g)$ (given)

$\: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$K_c = \frac{[SO_3]^2}{[SO_2]^2[O_2]}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\: \: \: \: \: = \frac{ ( 1.9)^2M^2}{(0.6)^2(0.82)M^3}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\: \: \: \: = 12.229 M^{ - 1}$ (approximately)

$\: \: \: \: \: \: \: \: \: \: \: \: \: \:$

Hence , K for the equilibrium is $12.229M^{-1}$

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Is grape juice a solution or a mixture

svetlana [45]

Most definitely a mixture because it's usually a mix of puréed grapes,water,and sugar.

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3 years ago

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A gaseous fuel mixture stored at 747 mmHg and 298 K contains only methane (CH4) and propane (C3H8). When 11.1 L of this fuel mix

Alisiya [41]

Answer:

$M_f=38.8\%$

Explanation:

From the question we are told that:

Pressure $P=747mmHg$

Temperature $T=298K$

Volume $V=11.1$

Heat Produced $Q=780kJ$

Generally the equation for ideal gas is mathematically given by

$PV=nRT$

$n= (747/760) *11.1/ (0.0821*298)$

$n=0.446mol$

Therefore

$x+y=0.446$

$x=0.446-y .....1$

Since

Heat of combustion of Methane=889 kJ/mol

Heat of combustion of Propane=2220 kJ/mol

Therefore

$x(889) + y(2220) = 760 ...... 2$

Comparing Equation 1 and 2 and solving simultaneously

$x=0.446-y .....1$

$x(889) + y(2220) = 760 ...... 2$

$x=0.173$

$y=0.273$

Therefore

Mole fraction 0f Methane is mathematically given as

$M_f=\frac{x}{n}*100\%$

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7 0

3 years ago

In the reaction between the strong acid HCI and the strong base NaOH which of the ions listed below is a spectator ion?

qwelly [4]

Answer:

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Explanation:

The equation would be:

HCl (aq) + NaOH (aq) --> HOH (l) + NaCl (aq)

The equation is already balanced and the NaCl will disassociate in Na+ and Cl- and HCl will disassociate into H+ and Cl- and NaOH will disassociate into Na+ and OH-. Na+ is on both sides of the equation and stays the same, so Na+ will be the spectator ion.

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3 years ago

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Calculate the volume of 1 M NaOH needed to prepare 10.0 ml of a 0.10 M solution.

Mumz [18]

Answer is: <span>volume of 1 M NaOH is 1 ml.
</span>c₁(NaOH) = 1 M.
V₂(NaOH) = 10 ml.
c₂(NaOH) = 0,1 M.
V₁(NaOH) = ?
c₁ - original concentration of the solution, before it gets diluted.
c₂ - final concentration of the solution, after dilution.
V₁ - <span>volume to be diluted.
V</span>₂ - <span>final volume after dilution.
c</span>₁ · V₁ = c₂ · V₂.
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3 years ago

Write the symbol for a calcium ion. How many electrons does it have? If the mass number is 41, then how many neutrons does it ha

Fynjy0 [20]

Explanation:

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From , the question ,

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and

since ,

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since ,

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Hence ,

number of neutrons = 21.

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3 years ago