Take 85 points PLEASE Help Me A galvanic cell consists of an SHE (as the left-hand electrode) with standard potential equals to -0.76 volt. It has a rod of zinc dipping into a solution of zinc ions at 298 K gave measured emf of -0.789volt and s is 0.059.
What is the activity of the zinc ions? use these equation E=E°+s log[ion]​

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.