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Which of the following is a characteristic of a non-electrolyte? *
a. Dissolves in water and conducts electricity
b. Dissolves in water but does not conduct electricity
c. A substance made up of ionic bonds
d. A substance formed by transfer electrons
How many moles of KBrO3 are required to prepare 0.0700 moles of Br2 according to the reaction: KBrO3 + 5KBr + 6HNO3 6KNO3 + 3Br2 + 3H2O *
A. 0.210
B. 0.0732
C. 0.0704
D. 0.220
A 500mL solution is made by dissolving 30.0g of NaCl in water. What is the molarity of the solution? *
A. 0.03
B. 1.03
C. 2.03
D. 3.03
A 50-g aqueous solution of phosphoric acid (H3PO4) contains 10.0 g of phosphoric acid. What is the mole fraction of solute? *
A. 0.0501
B. 0.0439
C. 0.415
D. 0.604
A solution is prepared by dissolving 25g of sucrose in 300 g of water. What is the % by mass of the solute? *
A. 6.55%
B. 9.09%
C. 7.69%
D. 8.33%
A solution is prepared by dissolving 25g of sucrose in 300 g of water. What is the % by mass of the solute? *
A. 6.55%
B. 9.09%
C. 7.69%
D. 8.33%
What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution? *
0.0058%
B. 0.0585%
C. 0.58%
D. 5.8%
How many bridging oxygen atoms are in the framework of a single sodalite cage
How much potassium iodide (166.00 g/mol) is required to get 1.78 g ofÂ
mercury(I) iodide precipitate (454.39 g/mol). The unbalanced chemical equation is
Determine the pressure exerted by 1 mole of methane placed into a bulb with a volume of 244.6ml at 25degree celcius .carry out two calculations assume methane as an ideal gas and assume methane as a real gas and obeys Vander Waals equations
