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Luba_88 [7]
3 years ago
13

How many formula units make up 19.0 g of magnesium chloride (MgCl2)?

Chemistry
1 answer:
professor190 [17]3 years ago
5 0
To convert the mass of a compound to formula units, the conversion factor is Avogadro's number, 6.022 x10^23 formula units/ mol and its molar mass. In this case, we are given with 19.0 grams of magnesium chloride which has a mass of 95.21 g/mol. Hence the answer is 1.20 x 10^23 formula units.
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Answer:

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Explanation:

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If 1,000 mL = 1 L, which of the following are possible conversion factors for liters and milliliters? Check all that apply.
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Two conversion factors:

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Explanation:

You can create two possible <em>conversion factors</em>, one to convert from mL to L, and one to convert from L to mL

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<u>a) From mL to L</u>

To convert mL to L you need to multiply by a conversion factor that has mL on the denominator and L in the numerator.

Your starting point is: 1,000mL=1L

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       1,000mL=1L\\\\ \\\dfrac{1,000ml}{1,000mL}=\dfrac{1L}{1,000mL}\\ \\ \\ 1=\dfrac{1L}{1,000mL}

<u>b) From L to mL</u>

Divide both sides by 1 L:

            1,000mL=1L\\\\ \\\dfrac{1,000ml}{1L}=\dfrac{1L}{1L}\\ \\ \\ 1=\dfrac{1,000mL}{1L}

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Hey there!


The answer to this question would most likely be the 3rd choice, (option C)


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Good luck on your assignment and enjoy your day!


~LoveYourselfFirst:)

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