Characteristic of Solutions
1
) Which of the complying with declarations hold true if you have 500.0 mL of [MgBr2] = 0.100 M?
(a) There are 500.0 mL of solvent.
(b) For every 1.00 L of option, there is 0.100 mole of MgBr2.
(c) Water is the solute.
(d) If you include water to the option, the molarity of MgBr2 will certainly lower.
2
) Which of the complying with remedies has the best focus of Na+ ions?
(a) 0.026 M Na2CARBON MONOXIDE3
(b) 0.014 M NaCl
(c) 0.013 M Na3PO4
(d) 0.032 M NaNO3
3
) A typical focus device is percent weight per quantity (%W/V) which is the variety of gram of solute in 100. mL of remedy. A container of hydrogen peroxide has 2.5 %W/V hydrogen peroxide (H2O2). What is the molar focus of hydrogen peroxide in the option?
(a) 0.0073 M
(b) 0.73 M
(c) 0.073 M
(d) 7.3 M
4
) Which of the adhering to declarations hold true if you have 700.0 mL of [Na2SO4] = 0.300 M?
(a) There are 700.0 mL of solvent.
(b) Na2SO4 is the solute.
(c) If you include Na2SO4 to the remedy, the molarity of the remedy will certainly raise.
(d) There is 0.300 mole of Na2SO4 in 700.0 mL of option.
5
) Which of the adhering to remedies has the best focus of K+ ions?
(a) 0.084 M KBr
(b) 0.031 M K3PO4
(c) 0.053 M KCH3CARBON MONOXIDE2
(d) 0.042 M K2SO4
6
) Which of the adhering to declarations hold true if you have 400.0 mL of [HNO3] = 1.40 M?
(a) For every 1.4 L of option, there is 1 mol of HNO3.
(b) HNO3 is the solvent.
(c) There are 400.0 mL of option.
(d) If you include HNO3 to the option, the molarity of the service will certainly raise.
7
) An usual focus device is percent weight per quantity (%W/V) which is the variety of gram of solute in 100. mL of remedy. A container of lye has 25 %W/V NaOH. What is the molar focus of salt in the remedy?
(a) 6.25 M
(b) 0.626 M
(c) 0.0625 M
(d) 0.00625 M
8
) Which of the adhering to options has the best focus of ClO3– ions?
(a) 0.069 M NH4ClO3
(b) 0.024 M Al(ClO3)3
(c) 0.077 M LiClO3
(d) 0.032 M Ca(ClO3)2
9
) Which of the complying with declarations hold true if you have 200.0 mL of [NH4Cl] = 0.150 M?
(a) Water is the solute.
(b) If you include water to the option, the molarity will certainly lower.
(c) NH4Cl is the solvent.
(d) There is 0.150 mole of NH4Cl in 200.0 mL of remedy.
10
) Which of the complying with options has the best focus of Cl– ions?
(a) 0.055 M NH4Cl
(b) 0.026 M AlCl3
(c) 0.082 M LiCl
(d) 0.044 M SrCl2
Residence Online Assignments
 |
