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A pitcher containing .9 L of water at 3 degrees celceus is removed from the fridge. How many kilojoules are needed to warm the water to a room temperature of 35 degrees celceus
The calorimeter contains exactly 341 g of water, and the temperature increases by 1.126°C. Calculate the heat given off by the burning Mg, in kJ/g and in kJ/mol.
a gas company in massachusetts charges 1.30 for 15ft cubed of natural gas ch4 measured at 20 degrees celsius and 1.0
approximately how many grams of NH4Cl will dissolve in 100g of H2O at 70 C?
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.74? Kb for ammonia is 1.8*10^-5.
Calculate the conditional formation constant Kf for the formation of an EDTA complex with copper (II) at a pH of 5.00, if log Kf= 18.80
Polar solute, polar solvent. Nonpolar solute, Nonpolar solvent. Or Nonpolar solute, Polar solvent
If 2.09 g SO2 react with excess oxygen and water, how many grams of H2SO4 are produced?
The molecular weight of NADH is 663.43g ans it's absorbance coefficient is 6220 M^-1 cm^-1. How much of your solution do you have to dilute to obtain the desired concentration not exceeding volume of 1mL?
If the gas was not pure butane but 10 mole percent propane and 90 mole percent butane then determine how would the MW value be affected?
For some enzyme reactions (for example, the hydrolysis of cAMP by phosphodiesterase in vertebrate retinal cones)the enzyme is present in large quantities,so that e0/s0 is not a small number.Fortunately,there is an alternate derivation of the Micha..
Calculate the equilibrium partial pressures of O2, NOCl, NO2, and Cl2. Peq(O2) = . Peq(NOCl) = . Peq(NO2) = . Peq(Cl2) = . (b) Calculate KP for this reaction. KP
Compound Y is unusually stable. What is the structure of Y and how is it formed?
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