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What is molecular weight?
Molecular Weight : The molecular weight of a molecule refers to the sum of the atomic weights of all the atoms making up the molecule. The gram molecular weight of a substance is the molecular weight expressed in grams. For example, the atomic weight of oxygen is 16, and that of hydrogen is 1, so one gram molecular weight, or mole, of water equals 18 grams.
Since one mole of any substance contains the same number of molecules, 6.022 x 1023, the concept is useful in describing chemical reactions. In biological experiments, the concentration of a solution, that is, the amount of solute dissolved in the solvent, is usually expressed in terms of molarity. A molar (1M) solution contains a mole of solute in 1 liter of solution. Note that by convention, "mole" is abbreviated as "mol."
Composed of C, H and O (fewer polar OH bonds than carbohydrates) Can be used at energy storage, components of cell membranes, chemical signals & thermal insulation Are
The three charges in the figure below are at the vertices of an isosceles triangle. Let q = 7.00 nC and calculate the electric potential at the midpoint of the base.
Sympatric OR allopatric speciation Sympatry The development of new species within a population. Two Hebe sp living in the same location but with different chromosomal numb
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In what ways might (a) clothing, (b) housing, (c) writing, have contributed to the survival of human beings? a) Clothing and (b) housing provide warmth and shelter, and so hav
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