The Atomic Mass of Potassium is 39 and that of Sulfur 32. The formula for Potassium Sulfide is K2S therefore the molecular weight of Potassium Sulfide is (39 * 2) + 32 = 110. Therefore one mole of Potassium Sulfide weighs 110 grams. Therefore 3.3 moles of Potassium Sulfide weigh 110 * 3.3 = 363 grams.
Mass in grams = no of moles x molecular mass. So, mass in grams = 5.2x 56 = 291.2g
45/94.2 is 0.4777 moles
25,3 moles of potassium sulfate hva a mass of 4,4409 kg.
16 grams of oxygen how many moles is 0,5 moles.
We need 3 moles of potassium perchlorate.
242.594 g
To find the number of grams in 3.3 moles of potassium sulfide (K2S), you need to calculate the molar mass of K2S, which is 110.26 g/mol. Then, you can multiply the molar mass by the number of moles to get the grams. In this case, 3.3 moles x 110.26 g/mol = 363.858 g.
34,7 moles of potassium 1 356,7 g.
Mass in grams = no of moles x molecular mass. So, mass in grams = 5.2x 56 = 291.2g
It is not possible to convert miles directly to grams without additional information such as the density or molecular weight of potassium sulfide. Can you provide that information?
45/94.2 is 0.4777 moles
25,3 moles of potassium sulfate hva a mass of 4,4409 kg.
3.99 or 4
To calculate the grams of iron II sulfide needed, we start by finding the moles of hydrogen sulfide produced. This is done by dividing the given mass of hydrogen sulfide by its molar mass. Then, we use the balanced chemical equation to determine that for every 4 moles of hydrogen sulfide, 1 mole of iron II sulfide is needed. From this, we find the grams of iron II sulfide required by multiplying the moles of iron II sulfide by its molar mass.
To calculate the grams of potassium permanganate in 2.20 moles, you would need to know the molar mass of potassium permanganate. The molar mass of potassium permanganate (KMnO4) is about 158.034 g/mol. So, 2.20 moles of KMnO4 is equal to 2.20 moles x 158.034 g/mol = 347.67 grams of potassium permanganate.
In 2 moles of potassium dichromate, there are 16 moles of oxygen atoms (from the two oxygen atoms in each formula unit). The molar mass of oxygen is 16 g/mol, so in 2 moles of potassium dichromate, there are 32 grams of oxygen.
For this you need the atomic (molecular) mass of KCl. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. KCl= 74.6 grams50.0 grams KCl / (74.6 grams) = .670 moles KCl