One mole of an atom of a substance is equal to the: Atomic mass of the element, in grams Collective atomic mass of the compound or molecule, in grams All of the choices Molar mass of the substance, in grams

Consider a sample containing 0.550 mol of a substance. How many atoms are in the sample if the substance is zinc? zinc: How many atoms are in the sample if the substance is platinum? platinum: Enter numeric value How many molecules are present in the sample if the substance is acetone, CH3COCH? CH3COCH3: atoms atoms molecules

A compound was determined to have 0.0335 moles of metal and 0.0402 moles of oxygen.  What multiplier would you need to determine the empirical formula for this binary oxide compound?

A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis. When 80.9 g of the compound is burned, 148.2 g of carbon dioxide and 40.5 g of water are collected. 1.) In order to determine the moles of carbon in the compound, first determine the moles of carbon dioxide that were produced from the combustion. 2.) Determine the moles of carbon present in carbon dioxide. This will be the same number of moles of carbon in the original compound. 3.) In order to determine the moles of hydrogen in the compound, first determine the moles of water that were produced from the combustion. 4.) Determine the moles of hydrogen present in the water. This will be the same number of moles of hydrogen in the original compound. 5.) Calculate the mass of oxygen in the original compound. You will need to subtract the mass of the carbon that ended up in the carbon dioxide and the mass of the hydrogen that ended up in the water from the mass of the original compound. 6.)…

Arrange the fertilizers in decreasing order of mass percentage of nitrogen. Highest percent nitrogen (NH,),SO, (NH,),HPO, NH, KNO, (NH)H₂PO4 NH,NO, Lowest percent nitrogen Answer Bank

0₂ Sample Furnace A 3.528 gram sample of an organic compound containing C₁ H and O is analyzed by combustion analysis and 5.259 grams of CO₂ and 1.615 grams of H₂O are produced. Molecular formula: H₂O absorber CO₂ absorber In a separate experiment, the molar mass is found to be 118.1 g/mol. Determine the empirical formula and the molecular formula of the organic compound. (Enter the elements in the order C, H, O.) Empirical formula:

A 27.1 gram sample of AlCl3 is equal to how many moles of AlCl3

a) Determine the empirical formula of compound that contains nitrogen and oxygen. It has been determined that 30.44% of the mass of this compound is nitrogen. b) The molar mass of the compound is determined to be 138.015 g/mol. What is the molecular formula of the compound?