Acertain metal m forms a soluble nitrate salt m no suppose the left half cell of a galvanic cell apparatus is filled with a 3.00 mm solution of m(no) and the right half cell with a 3.00 m solution of the same substance. electrodes made of m are dipped into both solutions and a voltmeter is connected between them. the temperature of the apparatus is held constant at 20.0 °c. o left right which electrode will be positive? what voltage will the voltmeter show? assume its positive lead is connected to the positive electrode. be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.