5
Which electrode will be positive?
✓6
7
What voltage will the voltmeter show? Assume its positive lead is connected to the
positive electrode.
8
Be sure your answer has a unit symbol, if necessary, and round it to 2 significant
digits.
M(NO3), Suppose the left half cell of a galvanic cell apparatus is filled with a 150. mM solution of M
of M(NO₂),
A certain metal M forms a soluble nitrate salt
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 40.0 °C.
O left
O right
10
0
11
X
✓ 12
13
Fig: 1