1. For each of your three trials state the following:
• heat needed to melt the ice (q)
• enthalpy of fusion
• percent error from the accepted enthalpy of fusion of water of 334 J/g

Trial 1: Heat needed: 22.0 Enthalpy of Fusion: 469 J/g Percent Error: 29% Trial

2: Heat needed: 18.0 Enthalpy of Fusion: 399 J/g Percent Error: 19%

Trial 3: Heat needed: 20.0 Enthalpy of fusion: 376 J/g Percent Error: 13%

Explanation:

your welcome

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.