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Q. Using a sample of 153-mL gas has a mass of 0.171 g at a temperature of 32 degree Celsius and a pressure of 761 mm Hg . Calculate the molar mass of the gas? If R=0.0821 L atm / mol K
Q. Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass?
Using a solution prepared by adding 467 mL of 0.400 M silver nitrate with 421 mL of 0.503 M sodium phosphate then determines what is the silver ion concentration in? Ksp of silver phosphate = 2.8 × 10-18
Write the structure of the conjugate acid of this base while consider the base monosodium phosphate, Na (HO)2P( O)O also explain why an aqueous solution of monosodium phosphate would be ineffective for extracting benzoic acid? pKa of this conjugat..
The standard free energy of activation of a reaction X is 89.4 kJ mol-1 at 298 K. Reaction Y is one million times faster than reaction X at the same temperature.
What is the alkali-aggregate reaction? List some of the rock types that are vulnerable to attack by alkaline solutions. Discuss the effect of aggregate size on the phenomenon.
What is the geometry and hybridization of the carbonyl carbon in carboxylic acids and their derivatives.
This assignment inhibits chemistry Laboratory Questions.
Explain the steriochemisty of gyceraldehyde and glycerol, give reasons for absence of anomeric forms in sucrose
Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
Chemical Kinetics - Determine the time taken by a reactant to reach a particular concentration
Determine the limiting, excess reagent & percent yield of the reaction - How much excess reagent is left after the reaction reaches completion?
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
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