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In the laboratory you dissolve 24.4 g of sodium iodide in a volumetric flask and add water to a total volume of 250 mL.
What is the molarity of the solution? M.
What is the concentration of the sodium cation? M.
What is the concentration of the iodide anion? M.
If 28mL of 5.2M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?.
an argon ion laser puts out 5.0 w of continuous power at a wavelength of 532 nm. the diameter of the laser beam is 5.5
The boiling point of ethanol is 78.3 C. Calculate the D S for vaporization of 0.5 mol of ethanol.
Copper(II) carbonate is heated in a test tube.Gas produced is passed in lime water through a delivery tube.6.2g of copper(ii) carbonate is used in the reaction. Calculate the volume of carbon dioxide gas produced at room condition.
A solution is prepared by mixing 13.00ml of 0.0021M (aq) Hg2(NO3)2 with 25.0ml of 0.015M HCl. Assume that volumes are additive.
The volume occupied by 1000. kilograms of the metal at 25 degrees Celsius. If 13.5 grams of aluminum were dissolved in an excess of concentrated HCl what volume of hydrogen gas would be released at STP? Assume the ideal gas law and that the vapor ..
Comment on the difference between the impure and crystallized sulfanilamide. What does the difference indicate about your ability to perform an effective crystallization
You have 135.8 mL of a 2.50, solution of Na2Cr04 (aq). You also have 125 mL of a 2.50 M solution of AgNO3. Calculate the concentration of Na+ after the two solutions are mixed together.
Then 5.0mL was withdrawn and diluted to 200mL. The spectrum of this solution exhibited a maximum absorbance of 0.642 units at 554nm in a 2cm cell. The molecular absorbance , e, is 423 M-1cm-1. What is the mass of the analyte in grams
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment
A disproportionation reaction is a type of oxidation-reduction reaction. which species is oxidized and which is reduced? B.) If 1.0 mL of 55% HSO3^- by mass is obtained in the reaction, what mass of S2O3^2- was present initially
a family heats their house with propane gas. the gas company reports that for an average home it takes 26.970 kj of
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