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Titration of 0.8443 g of KHP required 42.145 g of NaOH solution to reach the endpoint detected by phenolphtalein indicator.
A. Find the molality of the NaOH solution (units: mol NaOH/ kg water)
B. A 12.00 ml aliquot of H2SO4 required 62.334 g of this NaOH solution to reach the phenolphtalien end point. Determine the molarity of the sulfuric acid solution?
What is the concentration in moles per liter of SbCl5 in the container before any decomposition occurs. What is the preassure in atmospheres of SbCl5 in the container before any decomposition occurs. PV=nRT
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at its Boyle temperature. Assume that the pressure is 10 atm throughout.
A steel cylinder with nitrogen, hydrogen, and ammonia gases is at 500°C and 4.91 atm. If the partial pressure of nitrogen is 1850 mmHg and hydrogen is 1150 mmHg
Palmitic acid C_16 H_32 O_2 is a dietary fat found in beef and butter. The caloric content of palmitic acid is typical of fats in general. 1. What is the caloric content of sucrose in Cal/g? Delta Hrxn is: -5640 kJ
A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution?
The ksp for Al(OH)3 is 1.9*10^-33. what is the pH of a sauturated solution of Al(OH)3. ignore any hydrolysis
If 5.78 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 = CO2 + H2O how much oxygen is required?
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
A portion of soup containing 235 g water is heated in a microwave oven from 23°C to 85°C, with radiation of wavelength 1.55 multiplied by 10-2 m. How many photons are absorbed by the water in the soup
When 10cm3 of a gaseous hydrocarbon CaHb was exploded with an excess of oxygen, a contraction of 35cm3 occured (all volumes are measured at rtp). On treatment of the product with NaOH solution, a contraction of 40cm3 occured. Deduce the formula of..
Gases W, X, Y, Z obeys van der Waaks equation of states with a and b values are given in liter-atm units. Which gas has the highest critical temperature? Which gas has the largest molecules? Which gas has the most nearly ideal gas behavior at ..
If a solution containing 92.455 g of mercury(II) chlorate is allowed to react completely with a solution containing 16.642 g of sodium sulfide, how many grams of solid precipitate will be formed?
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