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Why would you expect phosphorous to require less ionization energy than sulfur to remove a valence electron?
the proton nmr spectrum of a compound gives a singlet at ? 2.10 and ? 2.56 in a ratio of 32 respectively. which
The hydrogen is recovered as its most stable oxide. When the oxide was made to decompose completely it released 1.274x10^25 molecules of oxygen gas.
Calculate the amount of energy needed in calories to heat 145 g of water from 22.3 degrees celsius to 75.0 degrees celsius. (water in j/g degree celsius = 4.184, cal/ g degree celsius = 1)
a solution is prepared by placing 22.9 g of kcl in a 0.800 lvolumetric flask and adding water to dissolve the solid
Question- A 10.0 L vessel contains 3.8 x 10 2 grams of nitrogen gas. What is the pressure exerted by this gas sample at 25 degree Celsius
The freezing point of t-butanol is 25.50°C and Kf is 9.1°C · kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 10.2 g sample of t-butanol is 24.59°C, how many grams of water are present in the sample?
Each hemoglobin combine with 4 O2. If 1.02 g of hemoglobin combine with 1.6 ml of O2 at 37degree c and 724torr. What is the molar mass of Hemoglobin
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC. Calculate the heat of combustion of glucose.
Given Mo Energy level diagram for diatomic molecules, which of the following molecular molecular ions has a bond order of 3. Why
The equation for osmotic pressure is = MRT, where ? is the osmotic pressure (in atm), M is the total molarity of solute particles.
List the following reducing agents in order of decreasing strength under standard-state conditions: As(s), Pb(s), Fe(s)
Vein material consisting of quartz (G=4.48 g/cc) and Barite (g=4.48 g/cc) has a density of 3.60 g/cc. What is the wt % of barite in the vein. What is the wt % of Ba
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