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During the cooling of the fired crucible, water condensed on the crucible wall before its mass measurement. Will the percent water in the hydrated salt be reported as being too high, too low or unaffected? Explain.
Using the data collected for part B on your data sheet, calculate the molar mass of the unknown acid. Mass of unknown acid is .501g and volume of NaOH used was 17.51mL Unknown acid was dissolved in 50mL of deionized water prior to being diluted wi..
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat as the valence shell in all cases. To add formal charges, click the button below (which will turn yello..
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
How many grams of heavy water are required to produce 145.0 mg of ND3(g). The mass of deuterium, D, is 2.014 g/mol
A certain first-order reaction (A->product) has a rate constant of 7.50×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
a)white the mathematical expression for the equilibrum constant,keq,as a function of the concentrations of the products and reactants for this reaction b)provide two specific ways whereby the le chatelier principle may be applied to this equilibri..
Student A conducted the acid-catalyzed dehydration of ethanol at 180 degrees C and obtained a gaseous product. Student B conducted the same experiment at 140 degrees C and obtained a low boiling liquid. Draw mechanisms for the formation of the pro..
How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen?
At what temperature is the molar volume of an ideal gas equal to 22.4L, if the pressure of the gas is 2.5 atm
How many grams of ethylene glycol dissolved in 3.55 kg of water needed to lower the freezing point of water to -22.0 c? Kf1.86 c kg/mol
You have 250.0 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. Determine the concentration of the sugar solution after the water has been added
Part A. You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. \rm counts after 93.1minutes , what is the half-life of this substan..
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