The standard atomic weight for oxygen is 15.994(3) [4], Source: US Department of Interior Geological Survey. I can't tell because you did not say what size bottles you are using - but a pint of water weighs about 16 ounces (1 pound). Merriam-Webster Dictionary, Density: the degree of compactness of a substance. The volume and weight of 1 cup of water are the same number under the metric system because the density of water is 1 gram per milliliter. The density of water is 1 kilogram per liter (kg/L) at 39.2°. What's more, if water is heated from room temperature, 70°F to its boiling point of 212°F, it will weigh 7.996 pounds, losing .333 pounds. The density of water is 1g/cm^3 or 1 kg per 1 liter. The weight of a volume of water can be found given the density, which is the mass compared to the volume. Given that a molecule of hydrogen weighs 1.01 Atomic Mass Unit (AMU) and one molecule of oxygen weighs 16 AMUs, the molecular weight of water is 18.02 AMUs. In common US measures, one gallon of water weighs 8.345 pounds. Though almost negligible, this will increase its volume and decrease its density. The standard atomic weight for hydrogen is 1.00794(2). Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. You can change your choices at any time by visiting Your Privacy Controls. This decrease in volume is called contraction.”, Properties of Matter  Smithsonian Institution National Science Resource Center, “The density of ice is about 90 percent that of water, but that can vary because ice can contain air, too. Chemistry in Focus: a Molecular View of Our World. The scientific elements table abbreviation for water – H2O – refers to the fact that a single molecule is made up of two molecules of hydrogen and one molecule of oxygen. Anyone who has ever tried to move a fully filled waterbed without the proper assistance can attest to how cumbersome these items can be. The increase in the volume of matter with increasing temperature is called expansion. Density is measured by dividing an object’s mass by its volume. This happens because the mass of the rod stays the same, but its volume increases. Then you would multiply that by 35, which is 616.93 ounces. That means that about 10 percent of an ice cube (or iceberg) will be above the water line.”. Does Hot Water Freeze Faster Than Cold Water? Q: How much does a pack of 24 bottles of 16.9 oz bottled water weigh? 9 years ago. 1 kg. Atomic Mass Unit: unit of mass for expressing masses of atoms, molecules, or nuclear particles that is equal to 1/12 of the atomic mass of the most abundant kind of carbon. For example, if an iron rod is heated, it will get longer and fatter and its density will decrease. 35 x ½ liter = 17.5 liters = 17.5 kg. While a waterbed weighs less per square foot than a refrigerator, the amount of water contained in a king-size waterbed can produce a total weight of approximately 1,500 pounds. When water is heated the hydrogen and oxygen molecules begin to vibrate more quickly and begin to move farther apart. … Each bottle of water is .5 litres, or 1/2 litre, so 22.72 x 2 = 45.44. Lv 7. Tro, Nivaldo J., and Don Neu. is equal to 2.2 lbs. What’s more, if water is heated from room temperature, 70°F to its boiling point of 212°F, it will weigh 7.996 pounds, losing .333 pounds. This means that 1 liter (L) of water weighs 1 kilogram (kg) and 1 milliliter (mL) of water weighs 1 gram (g). How Much Does Water Weigh?The most widely accepted simple scientific answer to this question is that a gallon of room temperature water weighs 8.33 pounds. When cooled down, most matter decreases in volume and increases in density. Cambridge Dictionary, “Most matter increases in volume when it gets hotter. Although waterbeds go in and out of vogue, there is no doubt that they represent one of the most common tactile household experiences of water weight. Finally, the relative density of other physical objects is often filtered through the prism of whether or not they can sink or float in water. One cup of water weighs approximately 8 ounces, which is equal to 225 grams. You will be able to take 45 bottles of water with you. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. Relevance. So, to get your answer you would multiply 16.9 by 1.043. Oxford Dictionary, Molecular Weight: the weight of a molecule, found by adding together the atomic masses of all the atoms it contains; relative molecular mass. Richard. 4 Answers. There is even a popular reoccurring feature on The Late Show, “Will It Float?”, wherein David Letterman and sidekick Paul Schaeffer try to guess whether or not a particular item will stay on top of the water surface or drop like a stone to the bottom. 50 pounds divided by 2.2 (kilo) = 22.72 lires of water. I am wanting to purchase a shopping cart that will hold 2 or 3 24 bottles/pack of water from car. The weight of water can also be quantified by its molecular weight, the sum of the atomic weights of the atoms in a single molecule.