If you weigh 70 pounds on earth how much pounds on Jupiter?

The gravitational field of the neutron star is about 2 x 10^11 times stronger than the gravitational field of earth. However, you have provided a mass in the question and this would remain the same if you were on a neutron star (mass is a scalar quantity - a common mistake). Weight is a vector quantity obtained by mulitplying mass in kg (70 pounds would be about 32kg) by the gravitational field experienced - so a value of 32 x 9.8 = 313.6 N is your weight on earth. Your weight on a neutron star is 2 x 10^11 times bigger than this, so 627.2 x 10^11 N is your weight. Your mass is still 32kg!