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wariber [46]
3 years ago
10

Tap water used for drinking is considered in the DIL calculations. A. True B. False

Chemistry
1 answer:
guajiro [1.7K]3 years ago
7 0

Tap water used for drinking is considered in the DIL calculations; true
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What is the mass of 5 moles of Fe2(CO3)3 ?
sineoko [7]

Answer:

1218.585

Explanation:

Looking at the subscripts we know there are 2 atoms of Fe, 3 atoms of C, and 6 of O.

Take the molar mass of each atom (from the periodic table) and multiply by the # of atoms

Fe: 55.845×2= 111.69

C: 12.011×3= 36.033

O:15.999×6=95.994

Add the values together: 243.717 g/mol

That is 1 mole of the molecule. Multiply by 5 for the final answer.

243.717×5=1218.585

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2 years ago
How many protons are found in an atom of platinum (pt)?
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78 protons are found in platinum(pt).
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3 years ago
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3 years ago
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antoniya [11.8K]
The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

<span>43.62 L CO2 ( 1 mol CO2 / 22.4 L CO2 ) (5 mol O2 / 3 mol CO2 ) ( 22.4 L O2 / 1 mol O2) = 72.7 L O2</span>



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3 years ago
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What is one major purpose for an animal to produce unusual sounds, display bright
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