An ideal gas with an initial volume of 2.05 L is cooled to 11 °C where its final volume is 1.70 L. What was the temperature initially (in degrees Celsius)?

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water