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Problem- How many grams of Na2CO3 are present in 15.5 mL of a solution that is 26.0% Na2CO3 by mass. The density of the solution is 1.14 g/ml.
What volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? How much sulfuric acid was in excess
Calculate the pH for the following cases in the titration of 25.0mL of 0.2M cyanic acid (HCNO, pKa=3.66) with 0.2M RbOH solution
magnesium has three naturally occurring isotopes 24mg isotopic mass 23.9850 amu abundance 78.99 25mg isotopic mass
The volume of a gas at 95.0 kPa is 300.0 mL. If the pressure is increased to 177 kPa, what will be the new volume?
A 773 mL sample of NO2 gas is at STP. If the volume changes to 648 mL and the temperature changes to 15ºC, what will be the new pressure in atmospheres
Compute the empirical formula as well as molecular formula of ascorbic acid given that its molar mass is about 176 g/mol. Add subscripts to complete the formulas.
An attempt was made to purify a malate dehydrogenase preparation by precipitating protein with ammonium sulfate at 55% saturation. The precipitate was redissolved in buffer, and this solution was found to have a protein concentration
Lozana reported a 1.57% volume increase at 1 atm pressure upon melting for lithium metal at 180.54 degrees Celsius. If the density of the solid is 0.515 x 10^3 kg/m^3, as well as the heat of fusion is 3024 j/mol, Explain what will the melting poin..
20 barium chloride60 m sulfuric acid1 m hydrochloric acidaccording to the concentrations in the procedure and assuming
Explain what is the concentration of the Vitamin C standard solution that you are making. Explain what is the initial concentration of Vitamin C. Utilize a clean 5mL auto-pipet to transfer exactly 5mL of this solution into a 100mL volumetric flask..
aluminum oxide used as an adsorbent or a catalyst for organic reactions forms when aluminum reacts with oxygen.4als
If the maximum amount of product possible is formed in the following reactions, what mass of the specified product would you obtain
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