A student mixed 100 mL of water at 15°C with 100 mL of water at 65°C. What is the final temperature of the water?
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The mass percent of oxygen in Nickel()sulfate is
percent.
At first, we look up the atomic masses for the element from the periodic table.
The atomic masses are found to be:
- Ni is
- S is
- O is
Next, we determine how many grams of each element are present in one mole of
of Ni
of S
of O
The mass of one mole is:
So, The mass percent of oxygen
percent.
To learn more about Mass percent, refer to:
