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mrs_skeptik [129]
3 years ago
10

How many grams in 6.20 x 10^25 atoms of bromine (Br) ? image attached , will give brainliest

Chemistry
1 answer:
Deffense [45]3 years ago
8 0

Answer:

8239.2g

Explanation:

Given parameters:

Number of atoms in Br  = 6.2 x 10²⁵atoms

Unknown:

Mass of Br = ?

Solution:

From mole concepts, we know that:

       1 mole of a substance contains 6.02 x 10²³ atoms/mol

 Molar mass of Br  = 80g/mol

6.2 x 10²⁵atoms  x \frac{1}{6.02 x 10^{23} } \frac{mol}{atoms} x  80 x \frac{g}{moles}  

          = 8239.2g

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A sugar crystal contains approximately 1.4×1017 sucrose (C12H22O11) molecules. What is its mass in milligrams? Express using 2 s
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Answer:

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5 0
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Liquidtight flexible nonmetallic conduit marked as ____ has a smooth seamless inner core and cover bonded together and one or mo
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Answer:

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Answer:

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Explanation:

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Mass of sample of gas = 32.8g

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Unknown:

Molecular weight  = ?

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