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4 years ago

According to the below equation, how many moles of SO2 are required to generate 1.43×1024 water molecules?

1 answer:

3 0

Make sure the equation is always balanced first. (It is balanced for this question already) 6.022 x 10^23 is Avogadro’s number. In one mole of anything there is always 6.022 x 10^23 molecules, formula units, atoms. For one mol of an element/ compound use molar mass (grams).

Multiply everything on the top = 8.61x10^47
Multiple everything on bottom= 1.20x10^24
Divide top and bottom = 7.15x10^23

Answer: 7.15x10^23 mol SO2

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Consider the following equilibrium: B(aq)+H2O(l)⇌HB+(aq)+OH−(aq) Suppose that a salt of HB+ is added to a solution of B at equil

Liula [17]

Answer:

Part A: C. The equilibrium constant for the reaction will stay the same.

Part B: A. The concentration of B(aq) will increase.

Part C: C. The pH of the solution will decrease.

Explanation:

Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.

Suppose that a salt of HB+ is added to a solution of B at equilibrium.

Part A Will the equilibrium constant for the reaction increase, decrease, or stay the same?

Adding HB+ will increase the concentration of the products side. so, the reaction will be shifted to the lift direction to suppress the effect of adding HB+ and attain the equilibrium again.

so, The equilibrium constant for the reaction will stay the same.

Part B Will the concentration of increase, decrease, or stay the same?

 Adding HB+ will increase the concentration of the products side. so, the reaction will be shifted to the lift direction to suppress the effect of adding HB+ and attain the equilibrium again.

So, the concentration of species in the reactant sides will increase.

Thus, the right choice is:

A. The concentration of B(aq) will increase.

Part C Will the pH of the solution increase, decrease, or stay the same?

So, HB+ reacts with a large amount of OH- to attain the equilibrium again and shifting the reaction towards the lift side to attain the equilibrium again.

Which means decreasing the concentration of OH-.

As the concentration of OH- decreased, the pH of the solution decreased.

So, the right choice is:

c. The pH of the solution will decrease.

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3 years ago

In order for a solute to dissolve in a solvent, what must be true?

Alex Ar [27]

The solute has to be hydrophilic, (water loving).

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4 years ago

What is the charge on copper in CuSO4?

yKpoI14uk [10]

<h2>HIII</h2><h2>HERE'S YOUR ANSWER </h2>

<h2 />

copper sulfate is an ionic compound whose overall charge is zero.
The copper ions have a +2 charge.
The sulfate ions have a -2 charge.

<h2>HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN </h2>

7 0

3 years ago

What is the specific heat capacity of propane in J/gC?

Anna007 [38]

Answer:

At ambient pressure and temperature the isobaric specific heat, CP, of gaseous propane is 1.68 kJ/kg K or 0.402 Btu/lb °F = cal/g K, while the isochoric specific heat, CV, is 1.48 kJ/kg K or 0.353 Btu/lb °F = cal/g K.

Explanation:

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3 years ago

Calculate the molarity of an aqueous solution of NaOH if its pH is measured and found to be 12.00.

alisha [4.7K]

Answer:

Explanation:

pH = 12

[H⁺] = 10⁻¹²

[OH⁻¹ ] [H⁺] = 10⁻¹⁴

[OH⁻¹ ] = 10⁻²

NaOH = Na⁺¹ + OH⁻¹

NaOH is a strong base so it dissociates 100%

[OH⁻¹ ] = 10⁻²

molarity of NaOH = 10⁻² M

= .01 M .

3 0

3 years ago