Mass of lead ions per liter
A sample of water contains 0.010 ppm lead ions, Pb2+
Calculate the mass of lead ions per liter in this solution (assume the density of the water solution is 1.0 g/mL).
What is the lead concentration in ppb?
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What is the MOLAR heat of combustion of benzene, C6H6, if the combustion of 1.00g of BENZENE CAUSES THE TEMPERATURE RISE OF 5.18 deg C in a bomb calorimter that has a heat capacity of 8.07 kj/deg C? (molar mass c6h6 = 78.1)
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A solution containing 29.85 mg of an unknown protein per 25.5 mL solution was found to have an osmotic pressure of 3.85 torr at 21C. What is the molar mass of protein?
Which of the following would have the lowest freezing point?
Calculate the mass of lead ions per liter in this solution (assume the density of the water solution is 1.0 g/mL). What is the lead concentration in ppb?
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What are these types of electrons called? Show the valence electrons in a molecule of water, and tell which ones are which.
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