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A 50.0 g sample of oxygen difluoride was isolated from the reaction of 50.0 g of oxygen gas with 50.0 g of elemental fluorine. What is the percent yield of the oxygen difluoride?
What is the molarity (M) of a solution that contains 2.553 grams of NaOH (MM = 40.00 g/mol) in 81.11 mL of solution.
what is the time required to reach a conversion of 70 percent?
Problem- Consider a reaction with two competing pathways. One is labeled as the kinetic pathway while the other is labeled as the thermodynamic pathway. How could you use temperature to favor the kinetic pathway over the thermodynamic pathway. Why
The conductivity of a solution can be measured easily with a probe that dips into a solution and a meter that reads out in siemens (1 siemens = 1 ohm-1). The equivalent conductance,
waters heat of fusion is 80. and its specific heat is 1.0. some velomobile seats have been designed to hold ice packs
How do you know if there should be a precipitate or not. What is the chemical formula for the possible precipitate. Look in your textbook for any necessary equilibrium constants.
Given the following pKa values, draw the dipeptide at pH7. Clearly show and explain the charges in this molecule. (pka values 2.3 for -COOH, 9.6 for -NH2 group, 10 for tyrosine side chain and 9.0 for serine side chain)
What concentration of sodium hydroxide is needed to give an aqueous solution with a pH of 10.650?
how many grams of sodium sulfide are formed if 1.60 g of hydrogen sulfide is bubbled into a solution containing 2.13 g
Low molecular weight ketones are soluble in water. Explain what is the shortest length of the carbon chain where insolubility becomes important
Show the electron configuration of phosphorus, P . Be sure to arrange the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top.
A sample of argon gas occupies 4.000 L at 25.00 degrees Celcius. At what temperature in degrees Celcius would the gas occupy at 6.800 L
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