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An unknown solution may contain one of the ions of each pair below. Devise tests which allow you to distinguish between the ions in each case.
a) Fe^3+ (aq) and Al^3+ (aq)
b) Cu^2+ (aq) and Co^2+ (aq)
c) Ni^2+ (aq) and Al^3+ (aq)
If a car has an EPA mileage rating of 30 miles per gallon, What is this rating in km L-1? 1 liter = 1 dm3, 1 gallon = 3.785 liter, 1 mile = 1.609 km.
Which of the following isotopes is more likely to decay via positron emission rather than electron emission.
How many resonance structures are there for the cyclohepatrienyl cation? Draw them. Are carbon-carbon bonds equivalent?
what is the volume change when 2 kg of water at 6.8 MPa and 93 Celsius expands to 1.6 bar
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million? Round to the nearest tenth. Don't forget the units
1.0 mol of CaCN2 and 1.0 mole of water are mixed together: CaCN2 + 3H2O → CaCO3 + 2NH3 How much NH3 could be produced?
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
What are the probable classes of hydrocarbon or hydrocarbon derivative (i.e.: alkane, alkene. ketone. ester. organic halide, etc...) in each of the following
Write a balanced reaction for the acid-base reaction of diethylbenzyl phosphonate with sodium hydroxide. Which hydrogens are the most acidic?
A 325-mL sample of solution contains 25.3 g of CaCl2, which is fully dissolved. Calculate the molar concentration of Cl- in this solution.
What is the probability that the particle is in the left quarter of the box for n=1?, n=2?, n=3?
Write reaction equations to explain how your acetic acid/sodium acetate buffer reacts with an acid and reacts with a base.
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