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969 ml of gas was collected at 64 degrees celcius and a pressure of 723 mm Hg. Find the volume at STP.
how many grams of asprin were lost in the washing process you used to purify your product, assuming you used 50mL if water for washing? The solubility of asprin in water is 0.33g per 100mL at room temperature.
Calculate the empirical and molecular formulae of A and B. Deduce the structural formulae of A and B. State the type isoerism exhibited by A and B.
Which of the following would be expected to be colored?
Explain the steriochemisty of gyceraldehyde and glycerol, give reasons for absence of anomeric forms in sucrose
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
210 mg Ca(OH)2 and 210 Al(OH)3. A 8.3×10^-2 M HCl, which is similar to stomach acid, is used to neutralize 5.0mL of liquid antacid. How many mililiters of HCl solution are needed to neutralize Ca(OH)2, then Al(OH)3?
A student is given four solid samples labeled W, X, Y, and Z. All have a metallic luster. She is told that the solids could be gold, lead sulfide, mica (which is quartz or SiO2), and iodine.
What significant difference would be expected between a titration curve for H3PO4 (triprotic acid) and a mixture
If 17.8 grams of KOH dissolve in enough water to make a 198-gram solution, what is the concentration in percent by mass.
if the experimenter uses a thermometer that reads 1.4C too high how will this affect the calculated molar mass.
how much energy is lost by 10 kg of silver if it is cooled from 35 degree celsius to 21 degree celsius
Determine the mass of RbCN required to prepare a 500 mL solution which is .12 M RbCN (MW = 112 g/mol).
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