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 freeCalculate the molecular or formula mass of each of the following:
(a)P4
(b)H2O
(c) Ca(NO3)2
(d) CH3CO2H (Acetic acid)
(e) C12H22O11(Sucrose, cane sugar)
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- Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and chlorine. It has a molar mass of 99g/mol. Analysis of a sample shows that it contains 24.3% carbon and 4.1% hydrogen. What is its molecular formula?
What is the total mass (AMU) of carbon in each of the following molecules?
(a) CH4
(b) CHCl3
(c) C12H10O6
(d) CH3CH2CH2CH2CH3
Determine the mass of each of the following:
(a) 0.0146 mol KOH
(b) 10.2 mol ethane, C2H6
(c) 1.6ร10โ3 mol Na2SO4
(d) 6.854ร103 mol glucose, C6 H12 O6
(e) 2.86 mol Co(NH3)6Cl3
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