Questions 27 to 30: Calculate the mass of each substance from the number of moles given. a) 0 .769 mol lithium chloride b) 57 .1 mol acetic acid, HC 2 H 3 O 2 c) 0 .68 mol lithium d) 0 .532 mol iron ( III ) sulfate e) 8 .26 mol sodium acetate (acetate ion, C 2 H 3 O 2 − )
Questions 27 to 30: Calculate the mass of each substance from the number of moles given. a) 0 .769 mol lithium chloride b) 57 .1 mol acetic acid, HC 2 H 3 O 2 c) 0 .68 mol lithium d) 0 .532 mol iron ( III ) sulfate e) 8 .26 mol sodium acetate (acetate ion, C 2 H 3 O 2 − )
Solution Summary: The author explains that the chemical formula for lithium chloride is LiCl. The number of moles is calculated using the formula given below.
1.
which of the following is an example of an empirical formula ?
2.which of the following is an example of a molecular formula ?
Researchers from the University of Cape Town in South Africa have discovered that penguins are able to detect a chemical released by plankton as they are being consumed by schools of fish. By following this scent they are able to find these schools of fish and feast on them. The chemical they smell is composed of 38.65% carbon, 9.74% hydrogen, and 51.61% sulfur. Determine the empirical formula of this compound. Type answer with following sequence of elements: CxHySz.
A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY