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The density of aluminum is 2.70 g/cm3. What is the volume of one mole of aluminum?
State three acids, bases, and salts used in therapeutic processes. Describe how one of each is used in therapeutic processes.
Draw the two possible products of the reaction between benzaldehyde and methylethylketone.
calculate number of moles of anhydrous compound recovered. c- calculate number of moles of water lost from the hydrated compound.d- what is the formula of the hydrate?
determine the empirical formula of a substance (Vanillin) that contains 63.15% carbon, 5.30% Hydrogen, and 31.55% oxygen.
A solution containing 82.0 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 g/mL. Calculate the molarity of ascorbic acid in the solution.
which of the solutions included in this experiment could be used to distinguish between the pairs of solutions. In each case, describe the observations you would make and write a net ionic equation for any reaction that would occur.
Determine the value of the equilibrium constant at this temperature - Ammonium Hydrosulfide NH4HS yields NH3(Ammonia) and Hydrogen sulfide
calculate the pH of a solution contaning 0.2m acetic acid (pka=4.7) and 0.1 m sodium acetate? a. write the equation ph=pka+log [A-]/[HA]
A piece of copper alloy with a mass of 60.0 g is heated from 21.0 ?C to 44.0?C. In the process, it absorbs 507 J of energy as heat. What is the speci?c heat of this copper alloy.
Assuming that the pressure and amount of a gas sample remain constant, what will be the final volume of a 3 .84 L sample of a gas originally at 160 0C when heated to 280 0C
Find the pH of a 0.130 M solution of a weak monoprotic acid with a Ka value of 1.6 *10(to the power of -6)
Use the dipole moments of and ( HCl= 1.08, Hf= 1.82) together with the percent ionic character of each bond ( HCl= 20% ionic, HF= 45% ionic) to estimate the bond length in each molecule.
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