16.5
A 42.7 gram sample of potassium nitrate (KNO3) contains how many grams of potassium?
Quite a few! 427.4 grams KNO3 (1 mole KNO3/101.11 grams)(6.022 X 1023/1 mole KNO3) = 2.546 X 1024 molecules of potassium nitrate -----------------------------------------------------------
the solubility of potassium nitrate in 70 degreesCelsius water is about 134 g KNO3 per 100 g water
how many moles are there in 56.0 grams of silver nitrate?
by weighing out the bit of insulin that you want to find how much of it there is
A 42.7 gram sample of potassium nitrate (KNO3) contains how many grams of potassium?
3.9 x 10^9
530,3 g potassium iodide are needed.
More than 45,5 g KNO3.
Quite a few! 427.4 grams KNO3 (1 mole KNO3/101.11 grams)(6.022 X 1023/1 mole KNO3) = 2.546 X 1024 molecules of potassium nitrate -----------------------------------------------------------
The gram atomic mass of gold is 196.967 and that of potassium is 39.0983. Therefore, equal numbers of atoms of potassium are supplied by 39.0983/196.967 the mass of potassium compared with gold. 5 X 9.85 = 49.25. This contains the same number of gold atoms as 49.25(39.0983/196.967) or 9.78 grams of potassium contains of potassium atoms, to the justified number of significant digits (limited by the number "9.85", assuming that "5" is intended to be exact.)
Potassium has atomic number 39.1.Amount of K in 284g sample = 284/39.1 = 7.26molThere are 7.26 moles of potassium in a 284g sample.
65 degrees of potassium nitrate will remain in water while only 35% of water will still be detectable in the solute potassium nitrate
The solubility of poassium nitrate in water at 20 oC is 616 g/L.
Approx 28.6 grams.
hicke
the solubility of potassium nitrate in 70 degreesCelsius water is about 134 g KNO3 per 100 g water