What volume of nitrogen dioxide (in l) is produced from the complete reaction of 16.87g of lead(ii)nitrate at stp 2pb(no3)2 (g) --> 2pbo(s) + 4no2(g) + o2

MPb(NO₃)₂: 331 g/mol


2Pb(NO₃)₂  > 2PbO + 4NO₂ + O₂
2×331g                         4×22,4dm³

662g Pb(NO₃)₂ 89,6 dm³ NO₂
16,87g Pb(NO₃)₂   X
X = (89,6×16,87)/662
X = 2,2833 dm³ = 2,2833 L NO₂

Where is the graph ?

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.