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You have 27.5 L of a 65.6% by volume (% v/v),water-based dye solution. Calculate the volume of pure dye and water that were used to prepare the solution. You may assume that volumes are additive.
Calculate w (in kJ) when 137 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 345 K:
Arrange the bonds in each of the following sets in order of increasing polarity: a)C--F, Be--F, O--F b)O--Cl, S--Br, C--P c)C--S, B--F, N--O
The vapor pressure of water above this solution is found to be 0.3624 atm at 348.0 K. The vapor pressure of pure water at this temperature is 0.3804 atm.
Explain how the following factors affect fluorescence quantum efficiency- increasing structural rigidity, decreasing temperature, rising sample concentration.
Compare the molar enthalpies of neutralization of hydrochloric acid, sulfuric acid, and phosphoric acid. Discuss the similarities of these data.
What single reagent could you add that would permit you to differentiate between the members of each pair of solid compounds below
Which of the possible unknown for this experiment would give this behavior? Write a balanced equation for the reactions observed with Na2S and KOH.
occurring at 800 K and 1atm. The initial mixture contains 1 mol of SO2 and 0.5 mol of O2. The reaction mixture can be considered to be an ideal gas.
Consider the following solutes and the composition of their aqueous solutions. In which of the following is the composition of the aqueous solution of the solute given
Assuming the diver took a deep breath (6.0L in her lungs)at 1.0 atm just before entering the water, what will be the volume of air in her lungs when she gets to 10 feet of depth? She does not exhale while descending.
In the reaction 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O, if the rate of change in the concentration of CO2, ?[CO2]/?t, equals 0.51M/s, what is the value of ?[O2]/?t, the rate of change in the concentration of O2
Problem- A flask contains 0.350mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.
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