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boyakko [2]
2 years ago
12

Which of the following formulas is used to determine the pH of a solution?

Chemistry
1 answer:
hjlf2 years ago
3 0

Answer:

pH = -log[H+]

Explanation:

The pH of a solution is simply the negative logarithm of the hydrogen ion concentration. It can thus be written mathematically as:

pH = -log[H+]

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How many half-lives would something have gone through if you had 75% daughter product and 25% parent?
levacccp [35]

Answer:

Two Half-lives

Explanation:

Let number of Parent nuclei Initially present be X,

Then, finally \frac{X}{4} Parent nuclei Will remain with \frac{3X}{4} daughter nuclei.

In one half- life , parent nuclei becomes half of initial.

So, starting with X parent nuclei,

After one half-life, it will degrade to \frac{X}{2} .

After another half life , Parent nuclei will become half of \frac{X}{2}

Which is equal to \frac{X}{4}.

So, Parent nuclei have to go through Two half-lives.

6 0
3 years ago
Human blood contains a buffer of carbonic acid (H_2 CO_3) and bicarbonate anion (HC〖O_3〗^-) in order to maintain blood pH betwee
kirill115 [55]

Kc = [H3O+][HCO3-] / [H2CO3]

Remember that Kc is products over reactants. Also, you do not include liquid water in a Kc expression, since liquid water has no concentration.

6 0
2 years ago
How many moles of h2o would be produced from 1.75 moles of o2 with unlimited c3h6
miv72 [106K]
1.75 (moles O2) × 6 (moles H2O) ÷ 9 (moles O2) = 1.17 (moles H2O)

You have to convert moles of O2 into moles of H2O so it's the number of moles you start with (1.75 O2) × the number of moles from the element you want (6 H20), then ÷ by the number of moles that the element that you already have (9 O2).
8 0
3 years ago
What are some examples of a chemical change? (list more than 2 examples)
Reil [10]

Cooking any food.

Burning of wood.

Digestion of food.

Acid-base reaction.

4 0
2 years ago
Read 2 more answers
35 points for one question
True [87]

The result of the procedure is that the copper strip should go through oxidation.

<h3>How to explain the procedure?</h3>

The copper strip should be considered as the anode and the nail should be considered as the cathode.

The anode is the electrode of an electrochemical cell at which oxidation occurs. The anode should be + while the cathode should be negative. Both should be placed in the tank that should be filled with the electrolyte solution.

Learn more about oxidation on:

brainly.com/question/25886015

#SPJ1

4 0
2 years ago
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