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Estimate the critical pressure of a mixture of methane and n-hexane if the critical temperature of the mixture is known to be 200 F. Compare your answer with the critical pressures of pure methane and pure n-hexane.
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
A solution of I2 was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
The gas phase irreversible first-order reaction A----> 3B , is carried out in PFR where the feed is equal molar in A and inerts. the conversion under these circumstances is 50%.
A certain microwave oven delivers 702 watts (J/s) of power to a coffee cup containing 67.5 g of water at 25°C. If the wavelength of microwaves in the oven is 9.75 cm
A sample of a dish from an archaeological dig gave 18 500 disintegrations per gram of carbon per day. A 1.00-g sample of carbon from a modern source gave 22 080 disintegrations per day.
What is the mass of a piece of aluminum if it required 857 J of energy to raise the temperature by 34.5 degrees C?
How many moles of oxygen are combined with 4.20 moles of chlorine atoms in C2O7?
what determines the order in which the component elements of binary compounds are written?
Determine how much time (in seconds) is needed to form 150. g Na from a sodium chloride melt by a 25 Ampere current?
a 4.5 g sample of LiCl at 25 C dissolves in 25 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy of solution.
How many dimes do you need to buy as much candy as possible? How much should all these dimes weigh? How many pieces of candy could you buy? How much would this candy weigh? How many pieces of candy could you buy with twice as many dimes?
an acetic acid solution of 2.87 pH is titrated with 1.5 mL of bromocresol green. When the color changes to light green
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