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The SI unit of length is the meter, which is defined as thelength equal to 1,650,763.73 wavelengths of the light emmitted by aparticular energy transition in krypton atoms. Calculate thefrequency of the light to three significant figures.
one hundred grams of water is saturated with NH4Cl at 50 degrees celcius. According to table G if the temperature is lowered to 10 degrees celcuis what is the total amount of NH4Cl that will precipitate.
Given the balanced equation 2 O3(g) --> 3 O2(g) , determine the rate of reaction with respect to [O2]. If the rate of formation of O2 is 6.94*10^-1 M/s, what is the rate of reaction of O3
Consider a solution that contains 81.0% R isomer and 19.0% S isomer. If the observed specific rotation of the mixture is -64.0°, what is the specific rotation of the pure R isomer
2.00 x10^2 mL of .744 M HCl is mixed with 2.00 x 10^2 mL of .372 M Ba(OH)2. how many moles of water are produced in the reaction
A 0.456 gram sample of an unknown monoprotic acid (let's call it HZ) was dissolved in some water (you pick the amount). Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100.-g sample of this compound. the molecular
a 1.628 gram sample of a hydrate of magnesium iodide is heated until all of the water is removed. its mass is now 1.072 grams. what is the formula of the hydrate?
in a coffee-cup calorimeter 1.20 g of nh4no3 is mixed with 79.0 g of water at an initial temperature of 25.00degc.
For the following elements show the allocation of electrons to their orbitals on the basis of the Pauli exclusion principle, Hund's rule, and the Aufbau principle.
the solubility of the k3fec2o43.3h2o product at 00c is 4.7 g per 100 g water. given this calculate the maximum percent
an evacuated empty 276 ml glass bulb weighs 129.6375 g. filled with an unknown gas the bulb weighs 130.0318 g.
describe one or more simple chemical tests that would distinuish acetaminophen from ibuprofem
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