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1.What is the percent by mass of gold in an 18-karat ring?
Given:
Unknown:
Solution:
Substitution:
Final Answer:
2.What is the percent by volume of a solution formed by mixing 25 mL of isopropanol with 45 mL of water?
Given:
Unknown:
Solution:
Substitution:
Final Answer
1.What is the percent by mass of gold in an 18-karat ring?
Given:
Unknown:
Solution:
Substitution:
Final Answer:
2.What is the percent by volume of a solution formed by mixing 25 mL of isopropanol with 45 mL of water?
Given:
Unknown:
Solution:
Substitution:
Final Answer
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Answer:
1.What is the percent by mass of gold in an 18-karat ring?
Given:
18 karat gold
Unknown:
18 out of the 24 parts that make up the gold are pure gold.
Solution:
divide
Substitution:
18/24
18÷24=0.75
Final Answer:75%