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How many moles of O2 are required for the complete reaction of 43.5 g of C2H4 to form CO2 and H2O?
What is the molar solubility of magnesium carbonate ( MgCO3 ) in water? The solubility-product constant for MgCO3 is 3.5 × 10-8 at 25°C.
Calculate the initial volume of a sample of a gas if its final volume is 344 mL after being heated from -10 °C to 40 °C.
PH And Percent Ionization, 1. Determine the pH and the percent ionization in a 0.50M solution of KOBr. The Ka for HOBr = 2.5 x 10 ^ -9.
What is the pH of a solution of a strong acide like tintric acid, HNO3, which is 5.6 x 10^-4 M? [HNO3 is a strong acide, so it is completly ionized in aqueous solution
A sample of pure NO2 is heated to 388C at which temperature it partially dissociates according to the equation.
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
Determine at what temperature must a balloon be heated to have six Litres volume consider that the balloon was at the temperature of 25 degree Celsius and volume of two litres initially?
In the process of producing sparkling wine from grape juice, the sugar glucose is decomposed to form ethanol and carbon dioxide. If 23 g of C6H12O6 is fermented, what volume of gaseous CO2 will be produced at a temperature of 29°C and a pressure o..
What is the dissociation constand, Kd, of a ligand with a percent occupancy
Calculate the pressure and temperature at which 1.0 mol of H2O, HCl, and C6H6 corresponds to the same states as 1.0 mol of CH4 at 2.00 atm and 298
what pressure would it exert? (b) What pressure would it exert if it behaved as a van der Waals gas?
that the reaction was endothermic. If the enthalpy of reaction is negative, then we say that energy was released or that the reaction was exothermic. Most chemical reactions are exothermic.
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