A sample of 250 g of water are heated from 40°C to 121°C, calculate the amount of heat energy absorbed.
1 answer:
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Answer:
0.879 mg
Explanation:
To solve this problem we need to use the definition of ppm:
- ppm = μg solute / g solution
With the above information in mind we can calculate the micrograms of lead using the concentration (13.97 ppm) and mass of solution (62.9 g):
- μg lead = 13.97 ppm * 62.9 g
- μg lead = 878.713 μg
Finally we convert μg to mg:
- 878.713 μg *
= 0.879 mg of lead