4 The density of water is 1.0 g/cm³. This is an important clue, because if you can measure the mass of the water, then you can easily determine the volume. a What is the mass of water with a volume of 1 cm³? b What is the mass of water with a volume of 20 cm³? c What is the volume of 10 g of water? What is the volume of 22.5 g of water? d Anide measures the density of methanol. He measured the bottle three times: first empty; then filled with water; and finally filled with ethanol. Here are the values obtained: mass of the empty bottle = 30.0 g mass of the bottle filled with water = 90.0 g mass of the bottle filled with ethanol = 78.0 g. Calculate the volume of the bottle. Calculate the mass of ethanol. Calculate the density of ethanol.
