If a given reaction is A + B --> 2C with ΔH = -8.8 lJ and the needed reaction is 2A + 2B --> 4C, what is the ΔH for the needed reaction?

Q: The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 500°C is 0.5 × 10-6. Cal...

A: In this question calculate the no. of vacancies.Given that,

Q: Saved Be sure to answer all parts. Name the following compound according to substitutive IUPAC nomen...

A: The IUPAC nomenclature of given compound is:4,5 dimethyl Hexan-2-ol

Q: A mole of photons in the ultra-violet region of the electromagnetic spectrum has an energy of 3.71 ×...

A: Given that,Energy of photon is

Q: What is the maximum mass of S8 that can be produced by combining 76.0 g of each reactant? 8SO2+16H2S...

A: Mass neither be created nor destroyed in a chemical reaction. Mass can be calculated in a balanced c...

Q: Assuming an efficiency of 44.60%, calculate the actual yield of magnesium nitrate formed from 142.9 ...

A: Number of moles of magnesium = 142.9g/24.305g/mol = 5.879 mole.From the balanced equation, it is cle...

Q: What assumption is being made in determining each of the following?    The mass of the vapor. The v...

A: The gas has to be considered as ideal one.  It helps to identify mass,  volume, temperature and pres...

Q: Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol....

A: The balanced combustion reaction of urea is as follows:

Q: A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reacti...

A: m = 144 gTemperature difference = 24.7 oC -21.00 oC = 3.7 oCSpecific heat capacity = 4.186 J/g. oC

Q: A sample of phosphorus weighing 2.50 grams is burned in the presence of oxygen. What is the empirica...

A: Given:Mass of phosphorus = 2.50 g.Mass of phosphorus oxide compound = 5.73 g.Mass of oxygen = Mass o...