If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

Why does his teacher ask him to balance the equation by including the correct coefficient