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Potassium and sodium chloride are similar in charge and they both have the same anion. When comparing sodium chloride (36 g / 100 mL at 0 oC) and potassium chloride, which has a higher solubility at 0 oC?
oximes, phenylhydrazones and semicarbazones all belong to a family of compounds known as imines. what structural feature in these compounds makes this generalization valid
Problem- Name the proton-pumping enzyme complexes of the respiratory chain. How many protons are pumped by each per electron pair. Where are the protons being pumped and for what purpose are they being pumped
Aspirin (acetylsalicylic acid,C9H9O4 ) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00g of aspirin in 0.600L of water and measured the ph. What was the Ka value calculated by the student if the pHof..
A sample of carbon monoxide gas whose mass is 7.75 g is heated from 25 oC to 166 oC at a constant pressure of 5.52 bar.
Diagnostic reactions are those used in medicine to figure out what may be causing a problem. Can you go into detail concerning one such test you or someone you know has undergone? Share one balanced chemical equation related to this, and be sure t..
A hypersaline solution with a molality of 4.53m has a salt content so high that the mass of the solution per 1000 grams of water is 1265g. calculate the molarity
What is the osmotic pressure of a solution made from dissolving 85.0 g of glucose, rm C_6H_{12}O_6, in 300 mL of water at 45.0{^circ}C?
Calculate the thickness of a salt layer left after evaporating an ocean of 35%u2030 salinity and 4-km depth.
In a titration, 0.0 mL of 0.025 M hydrochloric acid is added to 30.0 mL of 0.030 M ammonia. What is the pH of the resulting mixture?
a chemical engineer studying the properties of fuels placed 1.475 g of a hydrocarbon in the bomb of a calorimeter and
If you used 1.00g calcium chloride (CaCl2) in an experiment, how many moles CaCl2 did you use? (MW ca= 40, MW Cl =35) (show all calculations).
Cupric Sulfate is commonly sold as pentahydrate, which means that there are five moles of H2O for each mole of CuSO4. How many grams of cupric sulfate should be dissolved in a 250 mL volmetric flask to make a solution that is 508.0 ppm in Cu+2?
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