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What mass of Na2CO3 will be required to titrate 75.0 mL of 0.350 M HCl? This is the balanced equation given Na2CO3+2HCl--->2NaCl +H2O+CO2
Predict the normal boiling point of pure B (in degrees Celcius) given that deltaHvaporization(Pure B)=67.9kJ/mol.
which has the same osomotic pressure as blood, can be prepared by dissolving 0.923 g of NaCl in enough water to produce 100.mL of solution. What is the osmotic pressure of this solution at 25 C. But NaCl dissociates into ions
How much ethylene glycol (C2H6O2) the major component of antifreeze, must be added to 1 L of water to keep it from at -15 F? Kf= 1.86 C/m.
Electron configurations are a shorthand form of an orbital diagram, describing which orbitals are occupied for a given element. Generate the electron configuration of arsenic (As)
lead(II) sulfide was once used in glazing earthenware. It will react with hydrogen peroxide to form lead (ii) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265g of lead(ii) sulfide?
The product of the final step in the synthesis below are acetone and acetaldehyde. What are the identities of compounds A and B?
The following alcohol has been subjected to acid-catalyzed dehydration and yields a mixture of two isomeric alkenes. Draw the two alkenes, the major and minor product as predicted by the Zaisev rule.
In aqueous solution, classify these compounds as strong acids, weak acids, strong bases, weak bases other. H3PO4, HF, LiOH,
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.00°F
How do I calculate the theoretical pH of a solution made of 25 mL 0.10 M acetic acid and 25 mL 0.10 M sodium acetate
What is the volume of the gas in mL at each of the following pressures, if there is no change in temperature and amount of gas? 1) 0.40 atm 2) 2.00 atm 3) 2500 mm Hg
A particular Lake contains 10^10 liter of water. Due to acidification, the pH of the Lake is 5.00. It has been decided to add enough calcium carbonate to the lake to bring the pH to 6.00.
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