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12,714 solutions

Ka and Kb

Q. Which is the strongest acid in aqueous solution?

Solved • Dec 13, 2019

Isotopes

Q. Consider the following table of isotopes of silicon. How would you determine the percent abundance of each isotope?

Solved • Dec 14, 2019

Isotopes

Q. Boron has two naturally occurring isotopes, 10B and 11B, which have masses 10.0129 and 11.0093 amu, respectively. Given the average atomic mass of boron (10.81 amu), determine the percent abundance of each isotope.

Solved • Dec 14, 2019

Balancing Redox Reactions

Q. Balance the following redox reaction in acidic conditions: Cr2O7^2-(aq) + I-(aq) → Cr^3+(aq) + I2(s)

Solved • Dec 13, 2019

Balancing Redox Reactions

Q. Balance the following redox equation that is in basic solution: MnO4^-(aq) + SO3^2-(aq) → MnO2(s) + SO4^2-(aq)

Solved • Dec 13, 2019

Balancing Redox Reactions

Q. Balance the following redox equation that is in basic solution: S(s) + OCl-(aq) → SO3^2-(aq) + Cl-(aq)

Solved • Dec 13, 2019

Heating and Cooling Curves

Q. Using the provided data, calculate the amount of heat, in kJ, that must be removed to cool 21.2 g of gaseous benzene, initially at 107°C, to solid benzene at -10°C.

Solved • Dec 13, 2019