For example, 18.015 atomic mass units happens to be water’s molecular weight, and the weight of one mole of water is approximately 18.015 g. (write your answer in scientific notation. You are thoroughly confused. of molecules /Avogadro number No. As we know, No. Molar mass (in grams) is always equal to the atomic weight of the atom! Calculate the molar mass … round the coefficient … The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. hope it helps you Example: Determine the mass (in grams) found in 7.28 x 1028 nitrogen atoms. One mole (not one molecule) of oxygen atoms would weigh 16 g, because an oxygen atom weighs 16 u. Mass = 2 x 16 = 32gms= 32/1000 = 0.032 kg Therefore, 1 molecule of O 2 will weigh = 32/ 6.022×10 23 = 5.313 × 10 −23 g Weight of 1 mole of oxygen molecules = 32 g of oxygen . One form of hemoglobin is 0.335% Fe by mass, and each hemoglobin molecule contains four iron atoms. Problem : What is the mass of one molecule of C8H18 (octane) in grams? Different species of mammals have slightly different forms of hemoglobin. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? If each baked good sells for \$4, and he has already sold 11 baked goods, which of the following inequalities could be … Answers (1) Raul's goal is to sell at least \$75 worth of baked goods for the Speech Club's bake sale. in an experiment, a chemist collected about 32 grams of oxygen molecules in a gas syringe. Because 6.022 × 10 23 molecules of O 2 weigh 32 g . Of moles = 1/6.022*10^23. Of moles would be=No. of molecules =no. Hemoglobin is the protein that transports oxygen in mammals. 114 … A. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. round the coefficient to the nearest hundredth) and calculate the mass of one oxygen atom if an oxygen molecule consists of 2 atoms. Finding molar mass starts with units of grams per mole (g/mol). 1 mole of H2O = 2 × 6.022×1023 of Hydrogen + 6.022×1023 of Oxygen. assume that there are 6.02x10^23 molecules in the syringe. Well, the atomic weight of hydrogen is 1.01 grams, and the atomic weight of oxygen is 16.00 grams. Calculate the mass of one molecule of oxygen 2 See answers shiva2222 shiva2222 Hi Oxygen's atomic weight is 16.00 amu. of moles *Avogadro Number No. To briefly sum up, the mass that belongs to one mole of a substance will be equal to the molecular weight of that substance. These are values of 1 mol of these atoms. 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