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A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.49. What was the concentration of the solution? The Ka of lactic acid is 1.4 10-4.
An aqueous solution is 30.0 % by mass ammonia, NH3, and has a density of 0.892 g/mL.The mole fraction of ammonia in the solution is?
How much heat is required to warm 229 g of ice from -47.1°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
How many moles of Al2S3 are produced using 12.8 grams of Al and 7.59 x 10-2 moles of S8
the urge to breathe is increased and excessive CO2 is removed from the body D. respiratory tissue is damaged by oxidation E. no problems result from this situation
Determine the precipitate that forms if silver nitrate aqueous solutions and KCl react to produce products in a double-replacement reaction.
What fraction of the original reactant concentration will remain after 2.0 hours?
When .100 mole of a compound of carbon, hydrogen and nitrogen was burned completely in oxygen 26.4 g of co2 6.30g of h20 and 4.60 g of NO2 were produced What is the empirical formula
A large number of polycyclic benzenoid aromatic hydrocarbons are known. One of these, benz/a/pyrene, is a powerful carcinogen found in tobacco smoke. Draw the structure of this hydrocarbon. Can you suggest other sources where this material might b..
Describe the bonding in SeO2 in valence bond terms. Note whether or not there is delocalized bonding and explain how molecular orbital theory can be useful here.
Draw the structure(s) of the epoxide(s) you would obtain by formation of a bromohydrin from cis-3-heptene, followed by treatment with base
Assuming that the process is working as intended, draw and label the flowchart, do the degree-of-freedom analysis, and estimate the molar flow rate (lb-mole/h) of the humidified outlet air
need to neutralize the NH2 and stanilize the polyamide. I just want to clarigy we we need to wash it in HCl after interfacial polymerization.
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