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o-na [289]
3 years ago
11

What is the mass of 2.31 x 10^23 formula units of SrF2?

Chemistry
1 answer:
Lisa [10]3 years ago
5 0
48.2g SrF2

(hope this helps and correct me if I’m wrong)
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6400 cubic centimeters


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Calculate the pH of a solution that [H3O4] of 7.22x10-7M
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To calculate the pH of a solution that has a [H3O+] of 7.22x10^-7. You would do the following
pH=-log[H3O+]
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What is the percentage error of length measurement of 0.229cm if the correct value is 0.225cm
Mars2501 [29]

Percent error is the difference between the measured and known value, divided by the known value, multiplied by 100%.

So first, we take our measured value, .299 cm, minus our known value, .225 cm.

.299 cm - .225 cm=.004 cm

Next, we divide that by our known value

\frac{.004}{.225}=.0177777778

Finally, multiply your answer by 100

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Round to three significant figures, and you're done.

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5 0
3 years ago
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Which compound has the same empirical and molecular formula ethyne ethene ethane methane?
Margaret [11]
Empirical formula is the simplest ratio of whole numbers of components in a compound 
molecular formula is the actual ratio of components in a compound .
the molecular formula for the compounds given are as follows
ethyne  - C₂H₂
ethene - C₂H₄
ethane - C₂H₆
methane - CH₄
the actual ratios of the elements                 simplified ratio
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ethyne            2:2                                             1:1
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methane         1:4                                             1:4
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6 0
3 years ago
Which statement best describes the properties of ionic compounds? They are brittle, solid at room temperature, and have a high m
djverab [1.8K]
They are good conductors of heat and electricity.

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