What is the hydrogen ion concentration of a 0.05 N solution of a certain acid if the dissociation is 75%?
A. 0.75 mol/L H+
B. 0.0375 mol/L H+
C. 0.375 mol/L H+
D. 0.05 mol/L H+
Answer: B
Mathematics
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Solve the problem.The results of a school election for student president are shown in the following table. 
What is the probability that a randomly polled voter voted for Candidate C?
A. 0.28 B. 0.12 C. 0.25 D. 0.50
Mathematics
Choose the expression or equation that is equivalent to the one given.24 = x
A. log4 x = 2 B. log2 x = 4 C. logx 2 = 4 D. log2 4 = x
Mathematics
Plot the point.
A. 
B. 
C. 
D. 
Mathematics
Find the equation of the line described, and express your answer in the specified form.Perpendicular to the line x = 5; passes through the point (9, 2); standard form
A. y = 2 B. y = 9 C. x = 9 D. x = 2
Mathematics