I need help with like 35 questions anyone willing to help please let me know I have discord
1 answer:
Answer and Explanation:
The molar mass of a substance is all of the weights from the elements combined.
So, we have the elements
CU, S, and
CU has a mass is 65
S mass is 32
O has a mass of 16, but there's 4 atoms of O, so we do 16 times 4, which is 64.
Now we add.
65 + 32 + 64 is 161.
<u>So, the answer is 160, or answer choice A.</u>
<em><u>#teamtrees #PAW (Plant And Water)</u></em>
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Answer:
Approximately .
Explanation:
Note that both figures in the question come with four significant figures. Therefore, the answer should also be rounded to four significant figures. Intermediate results should have more significant figures than that.
<h3>Formula mass of strontium hydroxide</h3>Look up the relative atomic mass of ,
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on a modern periodic table. Keep at least four significant figures in each of these atomic mass data.
:
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:
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:
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Calculate the formula mass of :
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means that each mole of
formula units have a mass of
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The question states that there are of
in this solution.
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The molarity of a solution measures its molar concentration. For this solution:
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(Rounded to four significant figures.)