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Redox Reactions

Q. Which reaction species is the reducing agent in the reaction below? I^− + M n O 4^− + H^+ ⟶ I 2 + M n O 2 + H 2 O

Solved • Dec 6, 2019

Chemistry Gas Laws

Q. While resting, the average 70-kg human male consumes 14L of pure O2 per hour at 25°C and 100 kPa. How many moles of O2 are consumed by a 70-kg human male while resting for 8 hours?

Solved • Dec 5, 2019

Molecular vs Electron Geometry

Q. omega-3 fatty acid

Solved • Dec 5, 2019

Orbital Overlap

Q. Lisdexamphetamine (or "vyvanse", an ADHD medication) is below. For each atom provide the requested information. geometry, hybrid orbitals, number of sigma bonds, number of pi bonds

Solved • Dec 5, 2019

Activity Series

Q. Luis went camping and found a bag with 2500 silverish looking metal cubes in a cavern in the hills of Yosemite. These cubes have a height of 10 cm. He believes it is either silver, aluminium, or nickel. Remembering you were a chemistry genius, Luis promises to give you 500 cubes of the metal if you can tell him what the metal it is. Using 250 mL of each following solution at the stated concentrations. Assuming the metal reacts with B, C, D and F but does not react with A or E. Identify Luis's metal.

Solved • Dec 5, 2019

The Ideal Gas Law

Q. A sample of a gas in a piston/cylinder apparatus occupies 49 mL at 1.06 atm and 10.9 °C. If the volume of the sample is increased to 68.7 mL and the temperature changes to 48.3 °C, what is the new pressure in atm, of the sample? Enter your answer with three decimal places and no units.

Solved • Dec 5, 2019

Dimensional Analysis

Q. In Ch.0 - Essentials: Units, Measurement, and Problem Solving (exam practice), Is 1dm^3 = 1L a conversion factor that should be memorized? As i'm doing an exam review I am confused where the 1dm^3 = 1L is coming from.

Solved • Dec 5, 2019