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A gas company in Massachusetts charges $2.50 for 15.0ft3 of natural gas (CH4) measured at 20.0 degrees celcius and 1.00 atm. Calculate the cost of heating 200 ml of water (enough to make a cup of coffee or tea) from 20 degrees celcius to 100 degrees celcius. Assume that only 50% of the heat generated by the combustion is used to heat the water; the rest of the heat is lost to the surroundings.
a strip of mg of mass 15g is dropped into a beaker of dilute hcl. determine the work done by the evolution of h2 in the
The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. what is the specific heat of this substance.
using le chateliers principle to predict the effect of a change in conditions on a chemical equilibrium.nbsple
determine the molarity of a solution formed by dissolving 15.79 grams of cacl2 calcium chloride in 200.grams of h2o
An endothermic chemical reaction with ?E = +41 kJ/mol has an activation energy of +95 kJ/mol. What is the activation energy for the reverse reaction
The balanced net ionic equation for the neutralization reaction involving equal molar amounts of HCl and CH3CH2NH2 is
ow many coulombs are required to produce 63.8 g of potassium metal from a sample of molten potassium
to determine the solubility productconstant ksp at 50oc forniio32 a chemist prepares a saturated solution of the salt
Use the following data to calculate the enthalpy of solution, DeltaH soln for sodium hydroxide, NaOH
Why do flares contain magnesium powder rather than a solid piece of magnesium? -Smaller particles have a lower energy of activation than larger particles.
What volume of an HCL solution with a pH of 1.3 can be neutralized by one dose of milk of magnesia
Tell me how to write the electronic configuration based on spdf method or block method and how to make the lewis dot structure of big compounds like N2O5, and then HNO3 and then. CaCo3
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