Question

1. How many moles of KNO, are contained in one liter of 0.2 M KNOX? molar mass KNO3 K = 39.10 N = 14.00 O1600 X 3 = 48 mm KNO3 = 10.1 2. Surface tension A) B) C) Increases with increasing temperature Is unaffected by temperature is higher for nonpolar substances than for polar ones Is lowered by surfactants Is the same as viscosity D E) 3. A balloon at 25 °C has 1.00 L of air. The balloon is heated to 40 °C at constant pressure. What is a new volume? A) 1.00 x 10'L B) 1.05 L C)1.60 L. D) 15.0 L. E) 2.25 L PV = nRT

pls do the three plroblen pls

Answer 1

1) Concentration of KNO2soluti on = 0.2 M Volume of solution 1.00 L 0.2 mol No of moles of KNO2 solute = 1.00 L 0.2 mol 1 L