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3 years ago

Ammonium carbonate has the chemical formula (NH42CO3How many hydrogen atoms (H) are in ammonium carbonate?

Chemistry

1 answer:

Gre4nikov [31]3 years ago

6 0

Answer:

Explanation:

there are two ammonium ions with four hydrogen atoms each.

4*2=8

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3 years ago

Al and Bob are arguing about their algorithms. Al claims his O(nlogn)- time method is always faster than Bob's O(n^2 )- time met

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3 years ago

In the water cycle, water vapor evaporates into the atmosphere and forms clouds through condensation. What happens in the atmosp

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Answer:

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4 years ago

Read 2 more answers

3. Could a molecule contain only one atom?

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3 years ago

-You wish to make a 0.203 M hydrochloric acid solution from a stock solution of 6.00 M hydrochloric acid. How much concentrated

lubasha [3.4K]

For all three questions, we will use the fact that

molarity = (moles of solute)/(liters of solution)

1) For 175 mL of solution at 0.203 M, this means that:

0.203 = (moles of solute)/0.175
moles of solute = 0.035523 mol

Considering the hydrochloric acid solution, if we have 0.035523 mol, then:

6.00 = 0.035523/(liters of solution)
liters of solution = 0.035523/6.00 = 0.0059205 = 5.92 mL (to 3 sf)

2) If there is 20.3 mL = 0.0203 L, then:

8.20 = (moles of solute)/0.0203
moles of solute = 0.16646 mol

This means that the molarity of the diluted solution is:

0.16646/(0.200) = 0.832 M (to 3 sf)

3) If we need 1.50 L of 0.700 M solution, then:

0.700 = (moles of solute)/1.50
moles of solute = 1.05 mol

Considering the 9.36 M acid solution, from which we need 1.05 mol of perchloric acid from,

9.36 = 1.05/(liters of solution)
liters of solution = 1.05/9.36, which is 0.11217948717949 L, or 112 mL (to 3 sf)

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2 years ago