Chapter 3: Q 61E (page 171)
Question:What volume of a 0.33-M C12H22O11 solution can be diluted to prepare 25 mL of a solution with a concentration of 0.025 M?
The volume of
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
Question- Determine the empirical and molecular formula for chrysotile asbestos. Chrysotile has the following percent composition: 28.03% Mg, 21.60% Si, 1.16% H, and 49.21% O. The molar mass for chrysotile is 520.8g/mol.
Question- Polymers are large molecules composed of simple units repeated many times. Thus, they often have relatively simple empirical formulas. Calculate the empirical formula of the following polymers:
(a) Lucite (Plexiglas); 59.9%C, 8.06%H, 32.0% O
(b) Saran 24.8%C, 2.0%H, 73.1%Cl
(c) Polyethylene 86%C, 14%H
(d) Polystyrene 92.3%C, 7.7%H
(e) Orlon 67.9%C, 5.70%H, 26.4%N
Determine the mass of each of the following:
(a) 0.0146 mol KOH
(b) 10.2 mol ethane, C2H6
(c) 1.6×10−3 mol Na2SO4
(d) 6.854×103 mol glucose, C6 H12 O6
(e) 2.86 mol Co(NH3)6Cl3
47. Determine the molarity for each of the following solutions:
(a) 0.444 mol of CoCl2 in 0.654 L of solution
(b) 98.0 g of phosphoric acid, H3PO4, in 1.00 L of solution
(c) 0.2074 g of calcium hydroxide, Ca(OH)2, in 40.00 mL of solution
(d) 10.5 kg of Na2SO4∙10H2O in 18.60 L of solution
(e) 7.0×10-3 mol of I2 in 100.0 mL of solution
(f) 1.8 × 104 mg of HCl in 0.075 L of solution
What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g-cm–3 and contains 37.21% HCl by mass?
What do you think about this solution?
We value your feedback to improve our textbook solutions.
