0.71 grams of cu equals how many moles

Hey there!

atomic mass Cu =  63.546 amu so in grams : 63.546 g

1 mole Cu 63.546 g

Number of moles = mass of solute / molar mass

Number of moles = 0.71 / 63.546

number of moles = 0.01117 moles of Cu

0.011

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.

answermeridional ;