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Question- Calculate the number of grams, moles and molecules of barium sulfate produced when 4.5 milligrams potassium sulfate and 5.5 milligrams barium chloride are mixed. Which reagent is limiting and how much reagent is remaining?
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If 3.8 kcal is released by combustion of each gram of glucose, how many kcal are released by the combustion of 1.5 mol of glucose
calculate the final volume of a 0.500 l gas container that increased in temperature from twenty six degree celsius to
Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer.
A compound is 80.0% carbon and 20.0% hydrogen by mass. assume a 100 gram sample of this compound. How many moles of each element are in this sample
The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 359 grams of ice initially at -5°C to liquid water at 76°C
What are the advantages of laser. Can you explain why blue laser technology is the most challenging wavelength to develop in the photonics industry
The 13C nucleus is a spin 1/2 particle, which means it can orient in two directions in a magnetic field (with the field and against it). The difference in energy between the two orientations is given by:
What is the volume change when 2 lb of H20 at 1000 psia and 20 oF expands to 245 psia and 460 oF
Explain How to compute the number of grams of calcium chloride that can be prepared from 4.25 grams of calcium. Ca(s) + HCl -> CaCl2(aq)+H2(g) (unbalanced)
An unknown compound was decomposed as well as found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen and 2.05 mol carbon. Explain what is the empirical formula of the unknown compound
Using the method of successive approximations, what is [H3O+] in 0.00500 M CH2ClCOOH(aq) (Ka=1.4x10^-3) and how many iterations (n) are needed to validate that a constant value had been obtained? Express [H3O+] using two significant figures, follo..
the enthalpy of formation of ethanol c2h5oh is -277.0 kjmol at 298.15k. calculate the enthalpy of combustion of one
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