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The photoelectric effect is used today to make light-sensitive detectors; when light hits a sample of metal in a sealed compartment, a current of electrons may flow if the light has the proper wavelength. Cesium is a desirable component for these detectors. Why?
What is the molecular formula of a gas that has a density of 1.88 g/L at STP? this is not the actual numbers but it would be nice to know how to do this.
Gaseous oxygen is held in two separate containers at identical temperature and pressure. The volume of container A is 6.48 L and it contains 0.785 mol of the gas. The volume of container B id 5.78 L. How many moles of the gas are in container B
The temperature is increased to 45 degree celcius then determine what is the pressure in the cylinder
Which one of the following reactions occurring at 25 ?°C is the formation reaction of H2SO4(l) a. H2(g) + S(s) + 2O2(g) => H2SO4(l) b. H2SO4(l) => H2(g) + S(s) + 2O2(g) c. H2(g) + S(g) + 2O2(g) => H2SO4(l) d. H2SO4(l) => 2H(g) + S(s) + 4O(g) e. 2H..
Consider the titration of a 24.3mL sample of 0.120M RbOH with 0.110M HCl. Determine each of the following.
in a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. calculate the
How do you determine which methyl group gets the equatorial position in an 1-4 disubstituted isomer? (Assuming the methyl groups are different. For example, one is ethyl and the other is methyl).
how many moles of HNO3 are present in 33.0 mL of a 4.70M solution ?
In which pair of substances below does the substance with the greater entropy not follow the substance with the lesser entropy
Calculate delta G of the reaction for the following reaction: CaCO3(s) -> CaO(s) +CO2(g). Using delta G rxn =-734.4 kJ and -1206.6 kJ
In one experiment, the mass of water is 93.0 grams, the initial temperature of the water is 67.2oC, the mass of liquid nitrogen added to the water is 57.8 grams, and the final temperature of the water, after the liquid nitrogen has vaporized, is 3..
What mass of solid PbCl2(278.10 g/mol) is formed when 200 mL of .125 M Pb2+
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