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Various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
Monochloroacetic acid (HC2H2ClO2) is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead skin from the face and ultimately improve the complexion.
Chemistry: Change in Temperature in the Production of Silver Chloride, When solutions containing silver ions and chloride ions are mixed, silver chloride precipitates:
A 14.0 g sample of CaCl2 is dissolved in 121 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C·..
what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 9.2 X 10^4 kg of coal that is 0.33 mass % sulfur?
consider the titration of 25 mL of .25 M NH3 with .05M HBr .What is the pH at the equivalence point?
A certain first-order reaction (A products) has a rate constant of 4.80×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
Use the van der Waals equation of state to calculate the pressure of 4.00 mol of NH3 at 455 K in a 5.90-L vessel.
What is the change in enthalpy when 18.4 g of steam at 100?C is converted to liquid water at the same temperature and pressure? The heat of vaporization of water is 40.7 kJ/mole. Answer in units of kJ.
what is the formula for the ion formed when each of the following elements loses its valence electrons.
When the valve between the 2.00-L bulb, in which the gas pressure is 2.00 atm, and the 3.00-L bulb, in which the gas pressure is 4.50 atm, is opened, what will be the final pressure in the two bulbs?
a solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index of 1.3931 at 20 degrees celsius. The refractive indices at 20 degrees celsius of isobutyl bromide and isobutyl chloride
Calculate the volume of a balloon at the final temperature if this balloon at temperature of 279K and an initial volume of 2.3L is warmed to 406K.
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