65.0 "g N"_2 Any time you want to convert between moles and grams of a substance, you must know that substance's molar mass, which is the mass of one mole of that substance. (One …

The mass will be 492.8 g. Each 6.02xx10^23 molecules will equal one mole of a compound (regardless of whether it is methanol, or anything else). So, our first (of two) calculations must …

The simplest (or "empirical") formula is C_3H_8O_3 First, we take the masses of the two products and convert these to moles: moles CO_2 = 1.448g-:44.0 g/"mol" = 0.0329 mol Since CO_2 …

All you have to do now is to figure out how many molecules of chlorine are present in your sample. Start by using the molar mass of chlorine gas to calculate the number of moles of …

You must use "69.68 g of Na"_2"S" to produce "50.00 g of TiS"_2. > There are four steps to answering this type of stoichiometry problem. Write the balanced equation for the reaction. …

Three steps: (1) Write the balanced chemical equation; (2) Use the molar mass to convert grams of Al to moles of Al; (3) Use the molar ratio of Al:I₂ to get the moles of I₂. Step 1. Write the …

1.81 * 10^(25)"molecules H"_2"S" All you have to do here is to use the definition of a mole as a conversion factor to go from the number of moles of hydrogen sulfide to number of molecules. …

What is the number of moles in 9.63 L of #H_2S# gas at STP? How many moles are in 68.5 liters of oxygen gas at STP? How many atoms are in 131.97 liters of water vapor at STP? How …

Through multiple reactions, a chemist uses C, CaO, HCl, and H2O to produce dichlorobenzene, C4H4Cl2. Assuming that the efficiency of this lab is a minimum of 65.0%, how many …

How do you convert #1.75 * 10^26# atoms of potassium to moles? If I start with 25.0 grams of lead (II) nitrate and 15.0 grams of sodium iodide, how many grams of sodium nitrate can be …