(a) (10 points) The solid content of a stream water sample is to be determined. The solids content is determined by placing a portion of the sample into a porcelain evaporating dish, drying the sample at 105C, and igniting the residual by placing the dried sample in a muffle furnace at 550C. The weights of dish, dish+water sample, dish+sample after drying, and dish+sample after igniting are shown in the figure below as wo, WI, W2, W3, respectively. Calculate the (1) total solid content, (2) total fixed solid content, and (3) total volatile solid content for the sample. Assume the water density is 1g/mL. Igniting Drying @ 105C @ 550C W =168.383g W2=50.566g W =50.363g w = 50.326g