Chemistry, 06.11.2020 02:20 jmanrules200
The concentration of many toxic chemicals is measured in ppm (parts per million). One ppm means 1 gram of the chemical per million grams of substance. How many grams of lead are contained in 24.5 lb of blood (average for humans) if the Pb concentration is 0.62 ppm? Please use dimensional analysis to find your answer.
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Chemistry, 21.06.2019 18:00
During which movies do spring tides new moon first quarter waxing gibbous waxing
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Chemistry, 22.06.2019 10:00
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
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Chemistry, 22.06.2019 12:20
Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02Γ108 k . what is the rms speed of the deuterons? express your answer using two significant figures.
Answers: 1
The concentration of many toxic chemicals is measured in ppm (parts per million). One ppm means 1 gr...
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