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The vapour density (hydrogen =1) of a mixture consisting of No2 and n2o4 is 38.3 at 26.7 regree C . Calculate the number of moles of No2 in 100g of the mixture.
water is produced from the reaction of 21.1g of hydrochloric acid and 43.6 of sodium hydroxide, calculate the percent yield of water.
How much heat is required to raise the temperture of an object with a heat capacity of 3.4 j/k from 17.34 k to 67.18k?
Part A. Calculate the concentration of Cl? required to just begin the precipitation of AgCl in a solution having metal-ion concentrations of 0.036M.
the iron oxide reacts to form water vapor and Fe(s) but aluminum oxide remains unreacted. If the residue following heating weighs 1.6446g determine the wight percent of iron oxide in the original mixture.
Wpump = 1500 kJ/h = 0.42 kW Qboil = 2.59 x 106 kJ/h = 718.7 kW Wturb = -227,300 kJ/h = -63.1 kW Qcond = -2.36 x 106 kJ/h = -656 kW What is the efficiency of the engine? How should we define it?
Solution of Barium chlorate with a solution of Silver fluoride
What maximum mass of carbon dioxide is produced by the complete combustion of 10.0 kg of this fuel?
Briefly explain in terms of structure, basicity, and solubility why Novocain® is usually administered by injection whereas benzocaine is typically used in salves.
According to the VSEPR model, what are the arrangement of two, three, four, five, and six valence-shell electron pairs about an atom
If the initial concentration of the reactant in a first order reaction is .5 mols/L and the half life is 500 seconds, calculate the concentration of the reactant 1200 seconds after initiation of the reaction?
A certain solvent has a normal freezing point of 1.72 ° C, and a freezing point depression constant of 5.07 ° C/m. What is the molality of a solution in
Problem- An empty vial weighs 53.30 g. (a) If the vial weighs 184.21 g when filled with liquid mercury (d = 13.53 g/cm3), what is its volume? (b) How much would the vial weigh if it were filled with water (d = 0.997 g/cm3 at 25°C)?
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