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Get college assignment help at uniessay writers How do I find equilibrium partial pressure and calculate the pressures of NH3(g) and HCl(g) reached at equilibrium?

A bomb calorimeter has a heat capacity of 783 J/oC and contains 254 g of water whose specific heat capacity is 4.184 J/g•oC. How much heat, in kilojoules, is evolved or absorbed by a reaction when the temperature goes from 23.73 oC to 26.01 oC? cH2O = 4.184 J/g.K

The hydrogen gas is collected over water at 25 C. The volume of gas is 246 mL measured at 1 atm. Calculate the number of grams of Na used in the reaction (vapor pressure of water=0.0313

The production capacity for acrylonitrile (C3H3N) in the United States is over 2 million pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from gaseous propylene, ammonia, and oxygen. 2 C3H6(g) 2 NH3(g) 3 O2(g) 2 C3H3N(g) 6 H2O(g) (a) What mass of acrylonitrile can be produced from a mixture of 1.35 kg of propylene, 1.65 kg of ammonia, and 2.57 kg of oxygen? WebAssign will check your answer for the correct number of significant figures. 1 g (b) What mass of water is produced, and what masses of which starting materials are left in excess? mass of water WebAssign will check your answer for the correct number of significant figures. 2 g starting materials in excess (Select all that apply.) 3 ammonia propylene oxygen mass of propylene in excess WebAssign will check your answer for the correct number of significant figures. 4 g mass of ammonia in excess WebAssign will check your answer for the correct number of significant figures. 5 g mass of oxygen in excess WebAssign will check your answer for the correct number of significant figures. 6 g

At STP a sample of neon gas occupies 425 cm3. How many moles of neon gas does this represent? Answer in units of mol.

A sample of a gas occupies 1530 mL at −22.4◦C and 740 torr. What volume would it occupy at the same pressure and 354◦C? Answer in units of mL.

Which of the following is a true statement about a fixed amount of ideal gas at constant pressure? 1. If a sample of gas is heated from 0◦C to 273◦C, the volume will double. 2. If a sample of gas is cooled from 400◦C to 200◦C, the volume will decrease by a factor of two. 3. If a sample of gas is heated from 100◦C to 200◦C, the volume will decrease by a factor of two.

If one (1) atom of an element weighs 2.0 × 10−23 grams, what is the symbol for that element? 1. C 2. O 3. H 4. P 5. He

A calorimeter contains 31.0 mL of water at 12.5, ^{circ}C. When 1.70 g of rm X (a substance with a molar mass of 57.0 g/mol) is added, it dissolves via the reaction rm X{(s)} H_2O{(l)} rightarrow X{(aq)} and the temperature of the solution increases to 27.5, ^{circ}C. Calculate the enthalpy change, Delta H, for this reaction per mole of rm X. Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 rm J/(g cdot {^circ C}) and 1.00 rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.

Suppose that 28 g of gold is initially at 27.0 C. What is the final temperature of each substance upon absorbing 2.35 kJ of heat?

Get college assignment help at uniessay writers How much energy (in kilojoules) is required to convert 220 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?

an unknown compound has the formula CxHyOz. you burn .237g of the compound and isolate .347g of CO2 and .142g of H20. if the molar mass o te compound is 30.03g/mol, what is the molecular formula?

How much heat is gained by nickel when 500g of nickel is warmed from 22.4 C to 58.4 C? The specific heat of nickel is 0.444 j/(g . C)

A gas mixture with a total pressure of 750 contains each of the following gases at the indicated partial pressures: , 253 ; , 116 ; and , 159 . The mixture also contains helium gas.

Given a solution containing 0.01M of lead chloride and 0.01M of lead chromate, calculate the concentration of Pb2 . Using the Ksp(PbCl2)=1.7×10^-5 and Ksp(PbCrO4)=1.77×10^-14. What is the solid remaining?

25.00cm3 of 0.100M NaOH is needed to titrate 25.00cm3 of a solution of hydrochloric acid. Calculate the concentration of the acid.

In the titration of 58.0 mL of 1.0 M methylamine, CH3NH2 (Kb = 4.4 multiplied by 10-4), with 0.45 M HCl, calculate the pH under the following conditions.

30.0 mL of pure water at 282 K is mixed with 50.0 mL of pure water at 350 K. What is the final temperature of the mixture?

What pressure in atm will .44 moles of CO2 exert in a 2.6L container at 25C?

complete the following table. (Enter the symbol with the first, raised number (mass number) in the first box, the second, lower number (atomic number) in the second box, and the element, with charge if necessary, in the third box. Type your answer using the format [NH4] for NH4 and [Ni(CN)4]2- for Ni(CN)42-.) Symbol Number of protons in nucleus Number of neutrons in nucleus Number of electrons Net charge 23892U 20 20 2 23 28 20 8939Y 35 44 36 15 16 3-

How many grams of will be needed to produce 525ml of a solution that has a concentration of Na ions of 0.600M?

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November 3, 2019