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Suppose the thermometer is miscalibrated to read .3 degrees C higher than actual. what effect does this error in calibration have on the general molar mass of the compound, explain.
what is the theoretical (or calculated) yield of NH4 Al (SO4)2 * 12 H2O formed from 1.872 g of Al(OH)3?Assume all other reagents are in excess
Calculate the freezing point of each of the solution 0.220 g C12H22011 of sucrose, , a nonelectrolyte, dissolved in 1.75 kg of water.
When doing a recrystallization, why is it important to allow the saturated solution to boil for ~1 minute and cool SLOWLY to room temperature before placing it in an ice-water bath?
Compare the stabilities of an allylic anion and a homoallylic anion, each with the formula C6H11-. An allylic anion has the negative charge on an atom adjacent to the double bond.
If you make three serial 1:5 dilutions, using the solution above, what is the concentration of the final solution?
The Calfhead stream (flow rate 0.05m3s-1) discharges into the Oxhead river (flow of 3.00 m3.s-1). It is proposed to discharge waste into the Calfhead stream but the EPA requires a stream mixing study be undertaken.
Baking soda decomposes into sodium carbonate, water vapor and carbon dioxide. how many liters of gas will be produced at 155 C and 753 torr by the complete decomposition of 3.2 g of sodium bicarbonate?
What is the volume of dry gas at STP of a gas collected over water that has a volume of 596 mL at 40 C and pressure of 101KPa
An iron ore was found to contain 92.0% pyrite (fool's gold). Pyrite has the formula FeS2and is 46.5% iron. How many grams of iron are there in 65.8 grams of iron ore
we are taught that the gases do not have a specific volume but they occupy all the space that is given to them. why do
find the velocity of an electron emitted by a metal whose threshold frequency is 2.15times1014 rm s-1 when it is
If the volume is increased to 71.2 L at constant temperature, how many collisions will occur per square inch of this larger container
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