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A solution is prepared by dissolving 4.21g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by .203C, what is the mass of the solute? The boiling point elevation constant for water is .512C/m
a 3.25 g sample of solid calcium carbide reacted with water to produce acetylene gas and aqueaous calcium hydroxide. it
The water temperature before the reaction was 34.5°C, and after the reaction it had risen to 52.0°C. How many moles of water were formed?
how many grams of carbon are required to react with 1.5x10^25 atoms of hydrogen to form CH4
What role do the potassium chloride (KCl) and potassium sulfate (K2SO4) play in this experiment
In the reaction of noroborene to noroborenol, the exo, and endo forms are created. Why exactly is the exo form favored over the endo form
A rigid flask is initially filled with 4.00 atm of NO2(g) and no N2O4(g) at 100 C. After equilibrium is achieved, the pressure of NO2 is 1.56 atm.
If aluminum is diffused into a thick slice of silicon with no previous aluminum in it at a temperature of 1100?C for 8 hours, what is the depth below the surface at which the concentration is 1016 atoms/cm3 if the surface concentration is maintain..
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
followed by acidification, gives compound Z with molecular formula C4H6O4, CH3CO2H and CO2. Both X and Y are optically active, while Z is optically inactive. Propose structures for X, Y and Z that are consistent with these data.
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
capacity change if you add 0.2 M of benzoic acid to the buffer made of 0.3 M of acetic acid and 0.5 M of sodium acetate
what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15...
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