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1. How small a change temperature can be detect by touch? How could smaller changes in temperature be detected?
2. What would be expect to observe if KHCO3 reacted with HBr? What test would be performed to identify the product?
3. If a reaction called for a minimum of 0.5 moles of table sugar, C6H12O6, and there was only one jar of sugar available for you to use which contained 32.5 grams, could you carry out the reaction with the mass of sugar in the jar? Explain.
4. How many moles of carbon, hydrogen and oxygen atoms does a mass of 32.5grams of sugar represent? How many atoms of each type are there in this mass of sugar?
determine the solubility of CO2 in soda water at 25 degreeC if the pressure of CO2 is 5.2 atm
What one reagent should re-energize the light solution after it has faded? Explain using moles and limiting reagents.
a mixture of 2- percent ammonia 55 percent hydrogen and 25 percent nitrogen by a volume 9.8 newton per square meter. what is partial pressure of ammonia?
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.400 M. N2(g)+O2(g) 2NO(g) If more NO is added, bringing its concentration to 0.700 M, what will the final concentration of NO be after equilibrium is r..
Chlorine consists of two major isotopes with the following atomic masses: 35Cl (34.9689 amu) and 37Cl (36.9659 amu). The average atomic mass of chlorine is 35.4527 amu.
How many mL of 2.00 M Na2CO3 is diluted with water to prepare 300 mL of 0.500 M Na2CO3
The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule.
The Group 5A elements N,P,As have lower (less negative) electron affinities than most of the Group 4A or Group 6A elements because N,P,As have half-filled subshells.
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 ml of vinegar requires 43.50ml of 0.105m
at 400 k the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kpa was 9.71 pas when 10.0
If the rate of appearance of oxygen (?[O2]/?t) is 6.0 x 10-5 M/s at a particular instant, what is the value of the rate of appearance of ozone (-?[O3]/?t) at this same time
determine the energy of an electron excited from a hydrogen atom using bohrs model. determine the maximum wavelength of
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