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What would you need to use to prepare 300 ml of 0.500M K2Cr2O7 adding 30 ml of 1.50m K2Cr2O7 to 270 ml of H2O or dilute 250 ml of 0.600 m K2Cr2O7 to a volume of 300 ml please help explain which?
The value of delta H for the decomposition of gaseous sulfur trioxide to its component elements, 2SO3 (g) ---> 2S (s, rhombic) + 3O2 (g) is _____ kj/mol.
How many liters of CO2 are formed at STP by the complete combustion of the propane in a container with a volume of 14.0L and a pressure of 4.5atm at 24?C?
Explain why the wild horse analogy can be used to help explain a certain type of chemical bonding
What weight of glucose in grammes is required to make 675 ml of a 750 mM solution. Glucose Mr = 180.16
The molecular mass of an unknown compound was determined by measuring the freezing point depression of an aqueous solution of the compound
What is the quantity of Fe2O3 that will be produced if 5.00g of FeS2 is reacted with 11.0g of oxygen according to the following reaction
Balance the following redox reaction in acidic solution. State what is being ocidized, what is being reduced and how many electrons are transferred during the reaction.
how many grams of sulfur dioxide are produced when 90.0 g of thionyl chloride reacts with excess water according to the following equation? SOCl2+H2O --> 2HCl+SO2
The equilibrium constant Kc equals .0952 for the reaction at 227C CH4OH(g) CO(g)+ 2H2(g). wHAT us the value of KP at this temperature
Explain why the rates of diffusion of nitrogen gas and carbon monoxide are almost identical at the same temperature.
calculate the amount of work produced on the system and by applying the first law of thermodynamic calculate the amount of q of heat transfered from the system to the enviroment,
How would the addition of sodium chloride affect the hydrated cobalt(II) ion equilibrium? Explain using Le Chatelier's principle
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