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How much energy is required to heat 81.0 g of water (specific heat = 1.00 cal/g°C) at 11.0°C to steam (specific heat 0.468 cal/g°C) at 123.0°C? (Heat of vaporization of water = 540. cal/g) Show work!
NaOH + CO2 -→ Na2CO3 + H2O . If the average human body discharges 536 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft?
It required 22.7mL of HCl to reach the orange-red end point. Calculate the molar solubility and Ksp of calcium hydroxide.
How many kilograms of NH3 will be produced when 25.0 kg of CaCN2 react with excess water?
explain how alkenearomatic c-h stretches are distinguishable from alkane c-h stretches. do the c-h stretch peaks in the
Describe 3 uses of rhodium as a catalyst (written description and the balanced chemical equation) for its use in 1) three way catalytic converters on cars 2) the manufacture of acetic acid by catalytic carbonylation of methanol, called the Monsanto p..
To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass. Calculate how many pounds of strawberries are needed to make a..
What is the enthalpy of formation of CO(g) in kJ. 2CO(g) + O2(g) --> 2CO2(g). ?H reaction = -566 kJ ; ?H CO2(g) =-393.5 kJ/mol.
For the following processes, calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic:
19.) Acrylonitrile is polymerized via which pathway? a) cationic b) anionic c) coulombic
A process occurs spontaneously and DSsystem 0DSuniverse > 0The pressure is constant.Both (a) and (b) are correct.All of these answers are correct.
Why does it take significantly stronger magnetic and electrical field strengths to move the beams of alpha particles compared with the beams of electrons (beta particles)
Calculate the amount of acid that would be left in the water solution after four 20-mL extractions with ether. Do the same calculation, using one 80-mL extraction with ether, to determine which method is more efficient.
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