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What is the name given to reactions between an acid and a base?
Equal volumes of 1 x 10-5 M solutions of Cd2+ and CO32- ions are mixed in one flask and equal volumes of 1 x 10-5 M solutions of Ag+ and CrO42- ions are mixed in a second. Which substances precipitate given that the Ksp values of CdCO3 and Ag2CrO4..
Elemental sulfur reacts with oxygen and water to produce Sulfuric acid in the presence of a catalyst. What minimum mass of sulfur is needed to prepare 175g of sulfuric acid
Lactic acid, CH3CH (OH)COOH, has a Ka value of1.4x10-4. Explain how many grams of lactic acid must be added to make 193.0 mL of solution with a pH of 2.27
The mass of a red blood cell is about 33 pg, and it contains typically 3 × 108 hemoglobin molecules. Each hemoglobin molecule is a tetramer of a myoglobin-like molecule; the molar mass of myoglobin is 16.1 kDa. What fraction of the mass of the cel..
Does pH have an effect on the cell potential (Ecell) for the following oxidation-reduction reaction? 5Fe^2+(aq) + MnO4^-(aq) + 8H^+(aq) ---> 5Fe^3+(aq) + Mn^2+(aq) + 4H20(l)
You have 32.4 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.
briefly differentiate between solvent extraction and chromatography. what roles do these two techniques play in
to determine the number of molecules present in air using the ideal gas law and avogadros number.assuming that air
determine the mass of a mixture of 1.33x1024 formula units of sodium sulfate 1.500 moles of water and 3.77g of silver
Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer
Question- You have a 1.00 L solution of .123 molarity benzoic acid, a weak monoprotic acid. You also have NaOH. How many moles of NaOH do you have to add to the benzoic acid if you want to make a buffer with a pH of 4.2
If the volume remains constant as the temperature is raised, the pressure exerted by the gas: A. Remains constant B. Steadily decreases C. First decreases and then increases D. First increases and then decreases
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