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Calculate the equilibrium pH of a solution containing 5x10^-4 M Na2CO3 and 5X10^-4 M NaHCO3.
What would be the percent by mass of NaI solution prepared by dissolving 95 g NaI in 450 g water?
A gas confined in a 519.1-mL container exerts a pressure of 107 mm Hg at 38.6 degrees Celsius. At what Celsius temperature will it exert a pressure of 635.7 mm Hg if it is placed into a 644 mL container?
Determine how many moles of carbon dioxide should be combined to the system to bring the equilibrium carbon monoxide concentration to 0.715 mol/L?
You are expected to design a car that works with photovoltaic panels. Assume that the driver is 75kg and the expected speed is 50km/hr.
How many liters of hydrogen gas are collected over water at 18 0C and 725 mm Hg when 0.84 g of lithium reacts with water. P= 15.5 torr
How many grams of NaOH and H2O are required to prepare 100 g of a 28.7% NaOH by weight solution?
A 6 cm string is fastened at both sides is plucked. What is the wavelength of the n = 3 standing wave? How many nodes does it contain.
Why do you think that being exposed to air can have an effect on the amount of vitamin C present in the sample of juice?
Which molecular species would be necessary for the formation of the product in the reaction; a primary carbocation, a tertiary carbocation, a primary carbanion, a secondary carbanion or SO4?
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
What is the probability that the particle is in the left quarter of the box for n=1?, n=2?, n=3?
Compute ΔHo fusion and ΔSo fusion for this substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K..
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