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Naturally occurring iodine has an atomic mass of 126.9045. A sample of 12.3849g gets contaminated with 1.00070g of a synthetic iodine with a mass of 128.9050. Find the apparent "atomic mass of the contaminated iodine".
when the following five solutions are mixed together, only one reaction occurs. write the net ionic equation for that precipitation reaction. KCl(aq),Cu(NO3)(aq),AgNO3(aq),CaCl2(aq),and Ba(No3)2(aq)
If it requires 41.95 mL of 0.0205 M KMnO4 to titrate a solution made with 0.6128 g of iron ore, what percentage of the ore was iron
.35 M NaOH solution to reach the equivalence point. Determine the molar mass of the acid and given nthat the pH at the half way point to the equivalent point is 3.86. Calculate the Ka of the unknow acid.
NaOH was added. Assuming no volume change, calculate the pH of the solution
According to molecular orbital theory which of hte following is not predicted to exist I know its He2 but how do you get bond order from that is there an easy way
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 60. cubic cm. If the combustion of this mixture releases 1401
you are given 84.27241 g of a substance initially at 293.89622k. it is heated first to its freezing point 357.72232 k
Nitrogen dioxide reacts with water to produce oxygen and ammonia; 4NO2(g)+6H2O(g)-->7O2(g)+4NH3(g). At a temperature of 415 degrees C
Calculate the molarity of the ions present in these salt solutions. Assume each salt to be 100% dissociated. a. 0.75M ZnBr2
For each of the following processes, indicate whether the signs of S and H are expected to be positive, negative, or about zero.
calculate the molar solubility of silver iodide in 3.0 M NH3. overall formation constant for Ag(NH3)2" is 1.7 x 10^7
Why is it that hex-1-ene, (Z)-hex-2-ene, and (E)-hex-2-ene are considered to have a high boiling point?
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