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Maurinko [17]
3 years ago
11

How many minutes are in 17 years?

Chemistry
1 answer:
Anarel [89]3 years ago
3 0

Explanation:

8935200 mins plzzzźzzz mark it brainest

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9. How many grams are in 2.0 x 105 molecules of carbon monoxide?
timama [110]

Answer: 9.3 x 10^ 18 g CO

Explanation:

Start by knowing that carbon monoxide is the compound CO. To convert molecules to grams, you first need to convert molecules to moles. This can be done using the conversion factor for Avogadro's Number:

(2.0 x 10^5 molecules CO) x 1 mol CO / 6.02 x 10^23 molecules CO

This cancels molecules CO.

Then, you can convert moles to grams, which is your desired quantity. You can find the number of grams for CO by looking at the periodic table and adding together their masses. C = 12 g and O = 16 g. Total of 28 g CO:

(1 mol CO) x 28 g CO / 1 mol CO

This cancels mol CO, which leaves grams CO.

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3 years ago
As human populations grow, it becomes more important to use renewable sources of energy Which of the following objects uses ener
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Explanation:

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Potential energy is the energy stored. What do u think it is? (I don't really know)
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What is the pH of a solution with a concentration of 1.8 × 10-4 molar H3O+?
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PH is defined as the negative log of Hydrogen ion concentration. Mathematically we can write this as:

pH=-log[H^{+}]=-log[H_{3}O]

We are given the concentration of H_{3}O. Using the value in formula, we get:

pH=-log[1.8*10^{-4}]=3.745

Therefore, the pH of the solution will be 3.745
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The equation shows lead reacting with sulfuric acid to produce lead sulfate and hydrogen gas.
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