Problem- a sample of 3000 g of drinking water is found to
Problem- A sample of 300.0 g of drinking water is found to contain 38 mg Pb. What is this concentration in parts per million?
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problem- a sample of 3000 g of drinking water is found to contain 38 mg pb what is this concentration in parts per
problem- a solution of lead sulfate pbso4 contains 0425 g of lead sulfate in 1000 g of water what is this concentration
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problem- a sample of a compound contains 20 g of element a and 30 g of element b if the atomic weight of a is 60 gmol
problem- why does a crystalline version of a sample react more quickly than a powdered version of that same sample even
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