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Is there any simplar way to show me how to balance out eqautions the right way?
Solid potassium ,K , can be reacted with molecular oxygen , O2 to form K2O. If 4.3 g of potassium are reacted with 2 dm^3 of pure O2 at 20 degree celsius and 101.325 kPa what will be the mass and/or volumes of all substances present after the reac..
Name 4 properties of a compound that is directly influenced by the polarity of the compond. And state the 2 most important factors that affect the
A mixture of gas contains 46.3 % methane, 37.2% ethane and 16.5% propane(by mass). A 477g sample of the gass is burned with exces oxygen
State how much oxalate unknown should the student weigh out in order to use 35.0mL of permanganate solution?
Carbon dioxide and water form during combustion of propane. How many grams of water vapor form when 5.39 g of propane react
Calculate the total quantity of heat required to convert 25g of liquid ccl4 from 35 ºC to gaseous CCl4 at 76.8ºC(the normal boiling point for CCl4). The specific heat of CCl is 0.857J/(g ºC), its heat of fusion is 3.27 kJ/mol, and its heat of vapo..
Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane
How much heat is liberated by the combustion of 183 g of hydrogen? ΔHcomb = -286 kJ/mol.
What pH is needed to increase the solubility of Mn(OH)2 to 2.5 x 10-3M? Ksp for Mn(OH)2 = 1.6 x 10-13
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 23.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142-km trip in Europe?
a 24.6 ml volume of hcl solution reacts completely with a solid sample of magnesium carbonate producing 183 ml of
A 25.0 mL sample of 0.20 mol L-1 HNO2(aq) is titrated with 0.20 mol L-1 KOH(aq) at 25oC. What is the pH AT THE Equivalence point?(FOR HNO2,Ka=4.50x10^-4 at 25oC)
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