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How many moles of ions are in a solution of 7.4 moles FeCI3 in 500 mL water? If I save 300 dollars every 2 weeks for 6months how much will I have? Multiply matrices A and B of any sizes legally (no size compatibility requirment). What kind of matrix multiplication am I? Which pattern of speciation is most important in nature? Allopatric or sympatric why? Naphthalene sublimation rate=3*10^-5/min. Volume of room=60m^3. How would I calculate the naphthalene concentration in the air of the room?