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 …

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 …

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. …

Apr 29, 2016 · A mole is simply a collection of 6.022 * 10^ (23) molecules of a substance -> this is known as Avogadro's number. This means that the above reaction can be said to consume …

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. …

To find the number of moles, we need the mass and the molar mass. The molar mass is given by the sum of the individual molar masses of the constituent atoms in the molecule.

So, you know that you must convert #4.35 * 10^4# moles of molten sodium cations to sodium metal, so you can say that you're going to need #4.35 * 10^4# moles of electrons.

Plants convert 1.15x1017 grams of carbon into sugar (C6H12O6) each year. How many molecules of sugar is this?