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In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius. The sample is supposed to be benzoic acid. What preliminary conclusion(s) can you reach from this one determination? (select true or false)
1) The sample is probably impure.
2) The sample is not benzoic acid
3) The melting point determination may need improvement -- it may not have been done properly, and make
4) sure it was repeated at least once.
5) The sample probably needs recrystallization.
6) The sample may be benzoic acid.
A 3.664 g sample of a monoprotic acid was dissolved in water and required 20.27 mL of a 0.1578 M KOH solution for neutralization. what is the molar mass of the acid
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A titration required 18.38 mL of 0.1574 M NaOH solution. How many moles of NaOH were in this volume?
What is the largest alkane (number of carbons) that can be named not exceeding "decane" as a parent? Where is the primary How many What family. I.e. what Where and what carbons? Is the primary functional group?
What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm?
Predict the probability P9v) that a molecule will have a given total velocity of more specifically P(v)dv is the probability that a molecule will have a velocity btwn v and v+dv.
How many structures can be drawn from C4H10O and how can you differentiate the molecules in a labratory
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How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
How many joules are required to raise the temperature of 80g of iron from 20 degrees celsius to 70 degrees celsius?
Estimate the mass of KHP that will require 25 mL of 0.10 M NaOH to reach the equivalence point in a titration.
Silver chloride, often used in silver plating, contains 75.27% Ag by mass. Calculate the mass of silver chloride required to plate 155 mg of pure silver.
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