Solution Found!
(a) Show that the formula mass of NaCl is 58.443 (0.0012) g/mol. (b) To prepare a
Chapter 3, Problem 3-18(choose chapter or problem)
(a) Show that the formula mass of NaCl is 58.443 \(\left( \pm 0.001_{2}\right)\) g/mol.
(b) To prepare a solution of NaCl, you weigh out \(2.634( \pm 0.002) \mathrm{g}\) and dissolve it in a volumetric flask whose volume is 100.00 \(( \pm 0.08)\) mL. Express the molarity of the solution, along with its uncertainty, with an appropriate number of digits.
Questions & Answers
QUESTION:
(a) Show that the formula mass of NaCl is 58.443 \(\left( \pm 0.001_{2}\right)\) g/mol.
(b) To prepare a solution of NaCl, you weigh out \(2.634( \pm 0.002) \mathrm{g}\) and dissolve it in a volumetric flask whose volume is 100.00 \(( \pm 0.08)\) mL. Express the molarity of the solution, along with its uncertainty, with an appropriate number of digits.
ANSWER:Step 1 of 6
Formula mass is obtained by adding all the mass of atoms present in the given formula of a compound. Formula weight or molecular weight is its other name. It is expressed in the atomic mass unit (AMU).