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A gaseous fuel mixture stored at 751mmHg and 298K contains only methane (CH4) and propane (C3H8) . When 12.3L of this fuel mixture is burned, it produces 772kJ of heat. What is the mole fraction of methane in the mixture? (Assume that the water produced by the combustion is in the gaseous state.)
Find emperical formula 0.25 mal of Iron atoms combined with 0.33 mal of O atoms. Find emperical formula
In a chemical reaction two water-soluble ionic substances react to form an insoluble solid precipitate in a metathesis reaction. Would you expect DS to be positive, negative, or close to zero for this reaction
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
A 115 mL sample of a 11.0 M ethylene glycol (rm C_2H_6O_2) solution is diluted to 1.40 L.What is the freezing point of the final solution? (Assume a density of 1.06 g/mL for the final solution.)
A student wrote the reaction scheme below for the grignard synthesis of triphenylmethonal. Explain to the student why this representation of the reaction would not yield the desired product
Cannot be determined from the information provided. 9. Starting with the initial concentrations provided in the question above, what will be the equilibrium concentration of CO2? a) 1.6 M b) 1.8 M c) 2.0 M d) 2.2 M 10. What is KC for this process ..
Predict whether a precipitate will form in the following experiments. write down the associated balanced chemical equations for the formation of the precipitate.
25.00 ml aliquots of thiis solution was titrated with monoprotic strong base NaOH (0.0800 M). The titre volume of NaOH was 40.00ml. Calculate the molecular weight of H2A.
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
Determine what the mothballs were made of. Pure ethyl alcohol has a boiling point of 78.41 degrees C and Kb = 1.22 deg C/m for this solvent.
A process stream contains mostly light species 1 and heavy species 2 . A relatively pure liquid stream containing mostly 2 is desired, obtained by a single-stage liquid/vapor separation
A piece of metal with a mass of 18.2 grams was dropped into a graduated cylinder containing 16.50mL of water. The graduated cylinder after the addition of the metal is 18.40. Determine the density of the metal.
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