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Question- If 100.0 g of Pf3 reacts with 50 g of F2 according to the balanced question what mass in g of pf5 will be producedpf3+f2~>pf5
A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.8635 g of CO2 and 0.1767 g of H2O.
Assuming the same mass of each, which of the following substances will have the highest temperature change if they all absorb the same amount of heat Gold
Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is liquid. Briefly explain.
Critically evaluate the procedure used in this experiment as a quantitative technique for the analysis of copper (II) ion. Suggest sources of errors and ways of minimizing the error
Composting systems perform best when the carbon to nitrogen ratio is in the range of 20-40 (C: N of 20:1 to 40:1)
15.0 ml sample of .1m baoh2 is titrated with .125 m hcl. calculate the ph for atleast five different throughout the
What is responsible for the pH behavior of the following solution. Include a chemical equation in your explanation. Show by calculation the pH you would expect from the solution.
How many moles of gas are present after the reaction has come to completion. What is the mol fraction of Ar after the reaction has come to completion
In a second experiment, I(electric current) broke down a sample of H 2 O into 1.45 grams of hydrogen and 11.51 grams oxygen. Are these results reliable with the law of exact extent?
State substituting two hydrogen atoms on the benzene ring with methyl groups write line-angle formulas of all constitutional isomers. State the name each isomer.
Calculate w (in kJ) when 137 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 345 K:
If an ideal gas is expanded reversibly, the heat absorbed qrev, can be expressed by the differential dqrev = Cv dT + P dV, Where Cv is a constant (called heat capacity at constant volume). Show that dqrev is an inexact differential.
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