Topie: Week 4-Childre× D Purdue OWL: APA Formx nheducation.com/tlow/connect.html

Question

Topie: Week 4-Childre× D Purdue OWL: APA Formx nheducation.com/tlow/connect.html xConnect A&P-; Anatomy & Physiology: The Unity of Form and Function- Seladin, Be, The Chemistry of Life Which of the following statements about the molecular weight of a molecule are true? Select all that apply. Check all that apply It is equal to the number of covalent bonds in the molecule. It is useful for calculating concentrations. Itis equal toehe number of atoms in the molecule. It is measured in atomic mass units. It is equal to the sum of the atomic weights. Do you know the answer? No idea Think so I know it 13 ltems Read

Explanation / Answer

Molecular weight is useful in calculating concentartion. For instance, the molecular weight of the compound along with solute concentration and solution voulume, can be used to determine the chemical weight to make a particular solution. Molecular weight is measured in atomic mass unit or amu. It is defined as 1/12 of the mass of atom of C12. The molecular weight of the compound is equal to the sum of the atomic weights of atoms in that molecule, which form the compound. For instance, molecular weight of sugar is the total atomic weight of 12 C atom, 22 H atom and 11 O atom.

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