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Exactly 5.02 grams of an unknown gas was sealed in a 3.0 L flask at 37.0oC and a pressure of 1.25 atm. Which one of the following is most likely to be the unknown
a. H2Ob. HBrc. HCNd. H2Se. C2H2
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
explain what would happen if you failed to achieve complete precipitation of the Lead in procedure 2(separation of silver and Lead ii ions as chlorides), Explain how this might impact your results
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
At equilibrium, it is found that .25 moles of COCl2 remain. What is the equilibrium concentration of CO?
A mixture of 2.0 mol of H2 (g) and 1.0 mol of O2(g) is placed in a sealed evacuated container made of a perfect insulating material at 25 C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
You respond to a 2AM liquefied compressed gas transportation accident which is leaking from a 5lb (2.3kg) steel cylinder. Chemical commodity on shipping paper is 5 lb RQ, compressed gas, flammable, toxic, n.o.s. (poison - inhalation hazard, zone B..
Substances A2, B2, and C2 can act as oxidizing agents. Solution A2 is green, B2 is yellow, and C2 is red. In the reactions in which they participated they are reduced to A-, B-, and C- ion, all of which are colorless
The state function to describe a particle on a sphere is given as Ψ=2sin^2(?)+cos?(θ).calculate the expectation value of its angular momentum about the z-axis, energy and the square of the total angular momentum L^2.
A bottle of nail polish remover contains 182 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788mL.
How many grams of F2 are needed to produce 237 g of PF3 if the reaction has a 80.4% yield?
HOw many Doritos chips would you have to burn to heat up a pool with the dimensions 50' by 20' by 8'? 37.57 kilocalorie/gram and 75.52
Determine what would be the final temperature if thirty grams of Al at 95 degrees Celsius are added to 100 grams of H 2 O at 25 degrees Celsius?
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