3 years ago

In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor.

1 answer:

6 0

The balanced chemical equation is:

2H2 + O2 ---> 2H2O

We are given the amount of the product produced from the reaction. This will be the starting point for the calculations.

355 g H2O ( 1 mol H2O/ 18.02 g H2O) ( 1 mol O2 / 2 mol H2O ) ( 32 g O2 / 1 mol O2 ) = 315.205 g O2

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2 years ago

A voltaic cell is constructed with two silver-silver chloride electrodes, where the half-reaction is

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3 years ago

Assume the pH of household bleach is 12. What is the hydronium ion concentration in household bleach? What is it hydroxide ion c

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Answer:

[H3O+] = 1.0*10^-12 M

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We can use the following equation to find the hydronium ion concentration. Plug in the pH and solve for H3O+.

pH = -log[H3O+]

[H3O+] = 1.0*10^-12 M

Now, to find the hydroxide ion concentration we will use the two following equations.

14 = pH + pOH

pOH = -log[OH-]

14 = 12 + pOH

pOH = 2

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