Chapter 3: Q 57E (page 171)
Question: There is about 1.0g of calcium, as Ca2+, in 1.0 L of milk. What is the molarity of Ca2+ in milk?
Short Answer
The molarity of Ca2+ in milk is 0.025M.
Chapter 3: Q 57E (page 171)
Question: There is about 1.0g of calcium, as Ca2+, in 1.0 L of milk. What is the molarity of Ca2+ in milk?
The molarity of Ca2+ in milk is 0.025M.
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Get started for freeDetermine the number of moles of the compound and determine the number of moles of each type of atom in
each of the following:
(a) 2.12 g of potassium bromide, KBr
(b) 0.1488 g of phosphoric acid, H3PO4
(c) 23 kg of calcium carbonate, CaCO3
(d) 78.452 g of aluminum sulfate, Al2(SO4)3
(e) 0.1250 mg of caffeine, C8H10N4O2
For each of the following pairs of ions, write the symbol for the formula of the compound they will form:
Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (C2H5OH), 1 mol of formic acid (HCO2H), or 1 mol of water (H2O)? Explain why.
Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid (HCO2H), or 1.0 mol of water (H2O)? Explain why.
Question: If 0.1718L of a 0.3556-M C3H7OH solution is diluted to a concentration of 0.1222M, what is the volume of the resulting solution?
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