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Liquid butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 31.2 g of butane gas is removed from a cylinder. How much heat must be provided to vaporize this much gas? The heat of vaporization of butane is 21.3 kJ/mol.
1. calculate the heat of vaporization of bromine if bromine has pvap 400 mm at 41.0 c and a normal boiling point of
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 9,494kJ of heat is needed from the combustion
isothermally against a constant external pressure of 2.85 atm from 3.12 L to 11.85 L. Calculate the values of q, w, delta H, delta S system, delta S surroundings, delta S universe and delta G.
calculate how many atoms of potassium a three 3.00 mole sample of k2s would have ?calculate the current for
Formation of precipitate, formation of a gas, acid-base reaction forming a weak electrolyte, acid-base reaction forming of a gas or redox. AgNO3(aq) + HCI(aq) A) Molecular equation: B) Complete ionic equation: C) Net ionic equation: D) Type of rea..
write balanced molecular ionic and net ionic equations for the reactions of chromium gives cr3 with solution of dilute
If 26.43 mL of a standard 0.1650 M NaOH solution is required to neutralize 25.23 mL of H2SO4, what is the molarity of the acid solution
How do you find the maximum critical heat flux of water at 1.25 bar? It has to do with nucleate pool boiling.
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g
For the endothermic equilibrium CaCO3(s) + NH4+(aq) + SO42+(aq) -> CaSO4(s) + NH3(g) + HCO3-(aq), explain the best set of changes to apply in order to increase product yield effectively.
A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams.
barium acetate + iron (II) sulfate a) molecular equation; b) net ionic equation: 3. magnesium hydroxide + chloric acid a) molecular equation: b) net ionic equation:
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