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24.
For analyzing the concentration of lead in drinking water samples, a chemist needs to make 600 ml
of 0.1 M potassium bromide (KBr, molar mass=119 g/mole). Which of the following is the most
accurate determination of the mass of KBr that he needs to weigh out?

A5.04 g
B.3.0g
C. 7.1g
D. 11.9g

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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it should be all of them because it asks if you included all of those in your answer

explanation:

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.