To convert from moles to grams, we need to use the molar mass of the element. The molar mass of potassium (K) is approximately 39.10 g/mol. So, for 1.90 moles of K, the mass would be 1.90 moles * 39.10 g/mol = 74.29 grams.
1 milligram (mg) = .001 grams (g) = 1/1000 grams Therefore, 625 mg * 1/1000 grams = .625 g which is less than 1 gram (g).
The chemical formula for potassium chloride (KCl) is K + Cl. Since the molar ratio of K to Cl is 1:1, the limiting reactant will determine the amount of KCl produced. In this case, 1 g of Cl is the limiting reactant, so 1 g of KCl will be produced from 2.5 g of K and 1 g of Cl.
Balanced equation and potassium limits and drives the reaction.2K + Cl2 -> 2KCl6.75 grams K (1 mole K/39.10 grams)(2 mole KCl/2 mole K)(74.55 grams /1 mole KCl)= 12.9 grams potassium chloride produced==============================
grams in a kilogram.
There are 1000 g in 1 kg.
Potassium dichromate has a molar mass of 294.19 g/mol and contains 2 atoms of potassium. This means one mole of potassium dichromate contains 294.19 * 2 = 588.38 grams of potassium. Therefore, 12.5 grams of potassium dichromate would contain 12.5 * 2 / 294.19 ≈ 0.085 grams of potassium.
1 kg = 1000 g 8 kg = 8000 g Therefore, there are 8,000 grams in 1 kilogram
Six grams is 0.211 ounces. The conversion formula: 6 g* 1 oz 28.34952313 g = 0.2116437717 oz
The "k" stands for kilo, which is the SI unit for a thousand, so one thousand grams is a kilogram, or, a gram is a thousandth of a kilogram.
7.20 moles K x 39.1 g/mole = 281.52 g K = 282 g K (to 3 significant figures)
12 grams = 0.42 ounces.the formula to convert 12 grams to oz:12 g*1 oz28.34952313 g=0.4232875434 oz