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Using the volume of solvent calculated "which is 1.43 mL of 95% Ethyl alcohol", calculate how much sulfanilamide will remain dissolved in the mother liquor after the mixture is cooled to 0 degree C. ( solubility of sulfanilamide at 0 degree C is 14 mg/mL)
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
The specific heat capacity of solid copper metal is 0.385 J/g-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0C to 77.5C?
A certain bottled water lists a calcium concentration of 55 mg/L. What is its calcium concentration expressed in parts per million (ppm)
Phosphorus trichloride and phosphorus pentachloride equilibrate in the presence of chlorine: PCl3 (g) + Cl2 (g) ? PCl5 (g). At equilibrium, the pressures of the individual species are as follows: 0.202 atm for PCl3 (g), 3.45 atm for PCl5 (g) and 0..
if the half life of a certain radioactive element is 1,250 years what is the percent of atoms remaining after 7,500 years is ?
if the freezing point of a 0.106m CH3COOH solution is -0.323 degrees celcius, what is the percent of acid that has undergone ionization?
Suggest an experimental method to ensure that the reaction of 2-bromobutane produces entirely a) 1-butene b) 2-butene
Balance the equation in acidic solution and determine how much of a 0.850 M K2Cr2O7 solution is required to completely dissolve 5.25 g Cu.
Draw a correct and complete arrow pushing mechanism for the reaction of aspirin and sodium bicarbonate to form sodium acetylsalicylate.
draw,clearly showing the bonding between atoms, the simplest alkane molecule consisting of hydrogen and carbon, describe the molecule shape and bond angles.
water to form dissolved boric acid, H3BO3, and hydrogen sulfide gas. What is the balanced Equation?
The element lithium has two naturally occurring isotopes, 7Li (isotopic mass 7.0160 amu, abundance 92.5 %) and 6Li (isotopic mass 6.0151 amu, abundance 7.50 %). Calculate the atomic mass of lithium.
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