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Titration of a 308.5 mg sample of synthesized aspirin with 0.100 M NaOH solution required 20.30 mL. What is the EMM(effective molar mass) of the sample, and what is the % ASA(acetylsalicylic acid)?
Heat energy is added to a 352 g block of nickel, and the temperature increases from 21 degrees C to 53 degrees C. If the same amount of heat was added to the same mass of water at the same temperature, what would the water's final temperature be
the solubility of caso4 in pure water at 0oc is 1.20 grams per liter. what is the value of the solubility
write complete ionic equation to show the reaction of aqueous hg2no32 with aqueous sodium chloride to form solid hg2cl2
How much water would be needed to completely dissolve 1.66 of the gas at a pressure of 700 and a temperature of 10? Kh of gas of 0.194 M/atm.
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed when hex-2-yne undergoes hydration
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12x10^-12. What is the solubility (mol/L) of silver chromate
How to Name and Define Acids, How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings?
Calculate the concentrations of the protoneated and unprotonated forms of bromothymol blue in 100 mL of a pH 8.1 buffer solution to which 1.0 mL of 0.005 M solution of bromothymol blue in 80% wate/20%ethanol has been added.
What molarity of sulfide ion will produce the greatest amount of lead sulfide (Ksp = 8.0 x 10-28) precipitate without precipitating any tin(II) sulfide(Ksp = 1.0 x 10-25)
Write the balanced complete ionic equations and net ionic equations for the reactions that occur when each of the following solutions are mixed. (NH4)3PO4(aq) and CaCl2(aq)
A voltaic cell is based on the reaction Sn + I2 = Sn2+ + 2I-.
If you were extracting 4-chloroaniline and naphthalene (a mixture in ether), what reagents could you use to obtain a separation via extraction technique
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