POST UTME FUTO 2019 Chemistry | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the molar mass of C6H12O6?
A. 180 g/mol
B. 180.16 g/mol
C. 180.12 g/mol
D. 180.18 g/mol
Question 2
A solution contains 0.1 M HCl and 0.1 M NaOH. What is the pH of the solution?
A. 1
B. 2
C. 3
D. 4
Question 3
What is the molar mass of CH4?
A. 16 g/mol
B. 16.04 g/mol
C. 16.03 g/mol
D. 16.02 g/mol
Question 4
A $1.00\text{ L}$ container is filled with $0.500\text{ mol}$ of $\text{CO}_2$ at $25^\circ\text{C}$. What is the partial pressure of $\text{CO}_2$ in the container?
A. 0.500 atm
B. 1.00 atm
C. 2.00 atm
D. 3.00 atm
Question 5
A $2.00\text{ M}$ solution of $\text{H}_2\text{SO}_4$ is mixed with a $1.00\text{ M}$ solution of $\text{Ba(OH)}_2$. What is the resulting concentration of $\text{H}^+$ ions?
A. 0.500 M
B. 1.00 M
C. 1.50 M
D. 2.00 M
Question 6
A $2.00\text{ M}$ solution of $\text{H}_2\text{SO}_4$ is mixed with a $1.00\text{ M}$ solution of $\text{Ba(OH)}_2$. What is the resulting concentration of $\text{SO}_4^{2-}$ ions?
A. 0.500 M
B. 1.00 M
C. 1.50 M
D. 2.00 M
Question 7
A 1.0 M solution of a weak base, B, is titrated with 1.0 M HCl. If 20 mL of 1.0 M HCl is required to reach the equivalence point, calculate the number of moles of B initially present in 100 mL of the solution.
A. 0.0015 mol
B. 0.0020 mol
C. 0.0025 mol
D. 0.0030 mol
Question 8
A 1.5 g sample of a polymer is dissolved in 100 mL of a solvent. If the solution has a vis\cosity of 1.0 Pa·s, what is the molar mass of the polymer?
A. 1500 g/mol
B. 2000 g/mol
C. 2500 g/mol
D. 3000 g/mol
Question 9
A 2.50 g sample of sulfur (S8) is burned in oxygen to produce sulfur dioxide (SO2). The reaction is carried out at cons\tant pressure. What is the volume of SO2 produced at 25°C and 1 atm?
A. 1.00 L
B. 2.00 L
C. 3.00 L
D. 4.00 L
Question 10
Determine the s\tandard potential of the cell formed by the reaction between zinc metal and copper(II) sulfate solution. The s\tandard reduction potentials are E°\( Zn2+/Zn \) = -0.76 V and E°\( Cu2+/Cu \) = +0.34 V.
A. -1.10 V
B. -1.40 V
C. -0.10 V
D. +0.10 V
Question 11
A 0.1 M solution of a weak acid HA is mixed with a 0.1 M solution of a strong base NaOH. If the initial pH of the acid solution is 3.5, what is the pH of the resulting solution after the reaction is complete?
A. 4.5
B. 5.5
C. 6.5
D. 7.5
Question 12
A metal, M, reacts with chlorine gas to form a white solid. The reaction is as follows: M + Cl2 → MX2. If 2.5 g of M is reacted with 2.5 g of Cl2, what is the mass of the white solid formed?
A. 5.0 g
B. 5.5 g
C. 6.0 g
D. 6.5 g
Question 13
A 25 mL sample of 0.5 M NaOH is titrated with 0.5 M HCl. What is the pH of the solution after the addition of 20 mL of HCl?
A. 1
B. 2
C. 3
D. 4
Question 14
A 2.0 g sample of a polymer is dissolved in 50 mL of a solvent. If the solution has a vis\cosity of 0.5 Pa·s, what is the molar mass of the polymer?
A. 1000 g/mol
B. 2000 g/mol
C. 3000 g/mol
D. 4000 g/mol
Question 15
What is the molar mass of H2O?
A. 18 g/mol
B. 18.02 g/mol
C. 18.01 g/mol
D. 18.03 g/mol

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