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1) How many separation techniques are used in lab for Limiting reactants and percent yield?
2) If you forget to use the hydrate molar masses of the reactants, and use the regular molar masses instead, will the calculated % yield be too low, too high or unchanged. Explain your answer using complete sentences.
Name and provide the structure of the major organic product which results when (R)-3,3-dimethyl-2-butanol is heated in the presence of HBr.
The dissociation of calcium carbonate has an equlibrium constant of kp=1.16 at 800 degrees c. CaCO3(s) CaO9s)+CO2(g). what is the kc
What volume of glacial acetic acid (1.06g/ml) and what weigh of solid potassium acetate are required to prepare 5 liters of 0.2m acetate buffer, ph 5.0
The annual production of zinc sulfide (ZnS) is 4.5 104 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal
Explain in your own words why an organic chemist would say structure determines properties.
Which of the following underlined items is not an intensive property (a) A chemical reaction reqyuires 3.00g of oxygen (b) Solid copper hydroxide is blue colored (c) the density of helium at 25degree celsius
A sample of N2 (g) occupies a volume of 42.0 mL under the existing barometric pressure. Increasing the pressure by 85 mmHg reduces the volume to 37.7 mL. What is the prevailing barometric pressure in mmHg
Give the formulas of any solid products formed when the sodium salt of each of the anions in the far-left column is treated separately with 1)NH3 and BaCl2 solutions and 2) HNO3 and AgNO3 solutions. If no Precipitate would form write no reaction.
If 19.4 grams of an aqueous solution of sodium bromide, NaBr, contains 1.69 grams of sodium bromide, what is the percentage by mass of sodium bromide in the solution
Activating effects question: Using resonance contributors, explain why the nitrile group is a deactivator and a meta director in electrophilic aromatic substitution. A drawing would be helpful too.
describe in brief the risk connected with solutions of 1m nh3 1m hcl and 1m naoh?external pressure of 13.0 atm had by
The solution density if 1.001g/mL. Calculate the Ca2+ and Mg2+, molarity, molality, mol fraction, and the PPM. Please show examples.
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