1) The volume of water used in crop irrigation is measured in acre-feet, where 1 acre-feet is the amount of water needed to cover 1 acre of land to depth of 1 foot

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1) The volume of water used in crop irrigation is measured in acre-feet, where 1 acre-feet is the amount of water needed to cover 1 acre of land to depth of 1 foot. if there are 580 acres per square mile. how many cubic feet of water are in 1 acre-foot?

2) distances over land are measures in statute miles (5280 ft) but distances over H₂O are measured in miles, where i mile is equal to 1852 m. one knot = 1.0 mile per hour. an atlantic bluefin tuna can swim at speeds up to 40 statute miles per hour. how fast is this in knots?

3) Ag⁺ +Cl^- = AgCl, when 10 ml of 1 M AgNO3 is added to 10 ml 1 M NaCl at 25 C in a calorimeter, the temperature increased to 32.6 C. assuming that the specific heat of the aqueous mixture is 4.18 J/g C, that the density of the mixture is 1 g/ml and the calorimeter itself absorbs a negligible amount of heat, calculate the change in H (KJ/mol) for this reaction