How do you calculate moles of salicylic acid?

What is the formula mass of salicylic acid?

138,121 г/моль

How do I calculate moles?

  1. First you must calculate the number of moles in this solution, by rearranging the equation. No. Moles (mol) = Molarity (M) x Volume (L) = 0.5 x 2. = 1 mol.
  2. For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.

What is the mole ratio of salicylic acid to acetic anhydride in the equation?

Since the stoichiometry for salicylic acid and acetic anhydride is 1:1, acetic anhydride is in excess and salicylic acid is the limiting reagent.

How do you find the mass of salicylic acid in aspirin sample?

4. Answers will vary. For the sample data, the mass of synthesized aspirin is 1.96 g. Corrected for purity, is: (1.96 × 0.75) = 1.47 g. The percent yield is: (1.47 g ÷ 2.63 g) × 100 = 55.9%.

Part I Synthesis of Aspirin.

IT IS INTERESTING:  Question: Will steroids help contact dermatitis?
Mass of salicylic acid used (g) 2.01
Mass of aspirin synthesized (g) 1.96

How do you test for salicylic acid?

Salicylic acid, the major metabolite of ASA, can be detected easily In urine using simple chemical spot teats such as ferric chloride or Trlnder’a reagent. In forensic cases, urine Is often not available and the rapid detection of sallcylate in whole hemolyzed blood can be difficult.

How much salicylic acid is present in salicylic acid collodion?

97) should have included the BNF preparation, Salicylic Acid Collodion (salicylic acid 12% in flexible collodion). It differs from Salactol and Duofilm in that it contains no lactic acid, and 12% instead of about 17% salicylic acid.

What is a mole equal to?

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant.

Are moles and molecules the same?

A mole of a substance is equal to as many molecules of that substance as there are atoms of carbon-12 in exactly 12 g of carbon-12. … Most important of all, by this definition, 1 mole of any substance contains the same number of molecules.

What is the mole ratio of methyl salicylate used to salicylic acid produced in part A?

Remember, 1 mol of methyl salicylate yields 1 mol of salicylic acid).

What is the formula of acetic anhydride?


How do you find the limiting reactant?

Find the limiting reagent by looking at the number of moles of each reactant.

  1. Determine the balanced chemical equation for the chemical reaction.
  2. Convert all given information into moles (most likely, through the use of molar mass as a conversion factor).
  3. Calculate the mole ratio from the given information.
IT IS INTERESTING:  You asked: What is the mass of one mole of Sulphur atom?


How do you find the mass of aspirin?

Likewise, the molecular mass of an aspirin molecule, C9H8O4, is the sum of the atomic masses of nine carbon atoms, eight hydrogen atoms, and four oxygen atoms, which amounts to 180.15 amu (Figure 2). Figure 2. The average mass of an aspirin molecule is 180.15 amu.

What is the mass of one aspirin tablet?

The average mass of acetylsalicylic acid in the tablets is 317 mg.

What is the formula of aspirin?


Beauty lab