In chemistry lab, Michael made 142.5 mL of an acid solution using a mixture of 35.5 mL of a 69.5% acid solution and 107.0 mL of a 24.9% acid solution. Calculate the percent concentration of the acid mixture Michael made.

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: