During which geologic period did a major orogeny form the Taconic Mountains ?
1 answer:
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Answer:
The answer is
<h2>3.68 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
<h3>From the question
mass of substance = 12.50 g
volume = 3.4 mL
The density of the substance is
We have the final answer as
<h3>3.68 g/mL</h3>Hope this helps you
Answer:
2.94 x
Explanation:
First we need to find out how many moles of ammonia there are, using the formula: Mass = mr x moles.
We know the mass is 83.1g, now we need to find the mR of ammonia - NH3.
N = 14, H = 1, so 14 + (3x1) = an mr of 17.
Moles = mass/ mr = 83.1/17 = 4.8882
Now we can multiply the moles by avogadro's constant to find the number of molecules:
4.8882 x (6.02 x ) = 2.94 x
molecules of ammonia