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You need to make an aqueous solution of 0.180 M sodium sulfate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium sulfate should you add ?
consider the following reaction at equilibrium: N2(g)+O2(g)+heat 2NO(g). indicate how each of the following will shift the equilibrium: a)raising the temperature of the reaction. b)decreasing the volume of the reaction container. c)adding a cataly..
In standardizing a solution, what would happen if instead of putting HCl solution into a buret and standardized NaOH solution into a beaker when performing a titration
At 20 degrees Celcius and 1 atm (pressure), gold (Au) has a density of 19.32 g/cm cubed. What would be the volume of 2.510 kg of gold at the same temperature and pressure
If a 0.10 M solution of an acid has a pH of 4.5, what would be the predicted pH of a 0.10 M solution of the conjugate and why
A saturated solution of lead iodate in pure water has a lead ion concentration of 4.0 x 10¯5 mole per liter at 25 °C
A solution of 0.01M acetic acid is found to have a PH of 3.63 . Calculate the Ka for the acid
What is the density of lead (in ) if a rectangular bar measuring 0.50 in height, 1.55 in width, and 25.00 in length has a mass of 219.5 ?
How do glucagon and epinephrine block fatty acid biosynthesis. How does insulin activate fatty acid biosynthesis
The solution has a density of 1.286 g/cm^3. Calculate E for the cell. Assume all the H+ ions come from the first dissociation of H2SO4 which is complete
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon. Only the Fe2O3 present in the ore reacts with the carbon producing 341. g of carbon monoxide by the following rea..
in a coffee-cup calorimeter 1.60 g of nh4no3 is mixed with 78.0 g of water at an initial temperature of 25.00degc.
A 46.7 mL sample of a 0.557 M aqueous hydrofluoric acid solution is titrated with a 0.225 M aqueous potassium hydroxide solution. What is the pH after 76.4 mL of base have been added
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