Neville

area of a rectangular deck is 680 feet the deck width is 17 feet what is the perimeter?

1.104g of impure sample of NaNO2 was acidified and analysed using excess iodine ion. The reaction is 2HNO2+ 3H+-----2NO + 2H2O+I3- . Then I3- is titrated with 0.300M Na2S2O3. S2O3 2- + I3- ------ I- +S4O6 2- if the titre volume is 29.25cm3, calculate the...