Consider a continuous flow stream in a process which contains a mixture of benzene (b), toluene (t), xylenes (x), and 1,2-dichlorobenzene (d). the volumetric flow rate for the stream is 250 ml/min. the composition is 20% b by mass and 30% t by moles. there are three times as many moles of x as there are moles of d. assume the density of mixture is 0.97 g/ml and molar masses of each component are as follows: mb = 78.11 g/mol; mt = 92.14 g/mol; mx = 106.16 g/mol; md = 147.01 g/mol. (maintain 4 significant figures for all calculations). a) what is the stream's total molar flow rate (mol/min)? [ans: 2.440 mol/min] b) what are the mole fractions of each component in the stream? c) what is the weight fraction of (x) in the stream?

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

What is the chemical formula for dihydrogen monoxide

Asolubility table shows that almost all compounds of group 1 metals are soluble in water. this general rule tells you that mgi2 is soluble rbno3 is soluble cacl2 is soluble co2 is soluble