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You are given an unknown (solid or solution) and told that it can be one of the other of the compounds in the pairs listed below. Describe a simple chemical test (Not a flame test) using only reagents from our chemistry kits that would enable you to distinguish between the two possiblities. Describe what you would expect for each and write balanced, net iontic equations for any reaction that occur. Note that this question reviews all of the Qualitative Analysis experiments we have done.
A. AgCl (s) and BaSO4(s)
B. Fe^2+(aq) and Sr^2+(aq)
C. Hg2^2+(aq) and Mn^2+(aq)
D. CoS(s) and BaCO3(s)
Consider the following reaction: CO + 2H2= CH3OH, kp= 2.26 x 10^2 at 25C . Calculate delta G for the reaction at 25C under each of the following conditions.
How long will it take 10.0 mL of neon gas to effuse through a porous barrier if it has been observed that 91.2 minutes are required for 10.0 mL of Cl2 gas to effuse through the same barrier?
What is the pH change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.140 M with no change in volume?
Solubility of calcite (CaCO3) will increase with a decrease in temperature and decrease with an increase in temperature. This is because the solubility of calcite is dependent on the solubility of CO2.
In the tin oxide laboratory activity, what was the color of the vapor emitted when the nitric acid was added to the tin.
what is the rate constant for this reaction at 398 K ? I know that the answer is 1.2 s-1 but I don't know how to get it . Can anyone explain it to me please?
what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 7.5 104 kg of coal that is 0.33 mass % sulfur?
Calculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C.
Determine the specific heat of a metal object of 19 grams that is heated to 96 degrees Celsius and added to a calorimeter containing 75 grams of H 2 O at 18 degrees Celsius.
If 100.0 grams of copper (Cu) completely reacts with 25.0 grams of oxygen, how much copper(II) oxide (CuO) will form from 140.0 grams of copper and excess oxygen?
reacting 5g of salycic acid with an excess of acetic anhydride
suppose 45.0 g of water at 85 degree celcius is added to 105.0 g of ice at 0 degree celcius. The molar heat of fusion of water is 6.01 kJ mol-1, and the specific heat of water is 4.18 J/g degree celcius.
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