H3CA is a vitally important intermediate in the metabolism of carbohydrates. The compound is widely distributed in plant and animal tissues and fluids. H3CA is a triprotic acid, i.e., it requires three moles of NaOH to fully neutralize one mole of H3CA. a) If it requires 21.35 mL of 0.678 M NaOH(aq) to fully neutralize 0.927 g of H3CA, what is the molar mass of H3CA? Show your work below (and on the back, if needed).b) Given the following % composition, determine the true formula of H3CA: 37.51% C; 4.20% H; 58.29% O.

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.