Crockpot Chicken Lemone

1/4 cup flour
1 1/4 teaspoon salt
4 pounds chicken pieces
2 tablespoons vegetable oil 6 ounces lemonade frozen concentrate, thawed
3 tablespoons brown sugar
3 tablespoons ketchup
2 tablespoons water

Combine flour with salt; coat chicken thoroughly. Brown chicken pieces in oil and drain. Stir together lemonade, brown sugar, ketchup and vinegar. Place chicken in crockpot and pour lemonade mixture over it. Cook on high 3 to 4 hours. Serve over cooked rice.