250 molecules of potassium (39.098 g/mol) is equal to how many moles of potassium?
250 molecules of potassium (39.098 g/mol) is equal to how many moles of potassium?
What is the mass of 0.150 mol of Na_2SO_4? How many moles and molecules are there in 500.0 g of HC_2H_3O_2?
For the reaction, 2 KCIO3(s) — 302(g) + 2 KCl(s), how many moles of potassium chloride can theoretically form when exactly 1 mol of potassium chlorate decomposes? o 1 0 N 3 4 For the reaction, 2 KCIO3(s) + 302(g) + 2 KCl(s), how many moles of potassium chloride can theoretically form when exactly 2 mol of potassium chlorate decomposes? OO O 1 O N 3 4 For the reaction, 2 KCIO3(s) — 302(g) + 2 KCl(s), how many moles...
How many moles of potassium hydroxide would have to be added to 250 mL of a 0.478 M nitrous acid solution, in order to prepare a buffer with a pH of 2.900?
3H2(g)+N2(g)→2NH3(g) a. How many moles of NH3 can be produced from 13.5 mol of H2 and excess N2? b. How many grams of NH3 can be produced from 4.90 mol of N2 and excess H2. c. How many grams of H2 are needed to produce 12.74 g of NH3? d. How many molecules (not moles) of NH3 are produced from 1.05×10−4 g of H2?
Solid potassium chlorate (KClO3) decomposes into potassium chloride and oxygen gas when heated. How many moles of oxygen form when 55.3 g completely decomposes? 0.338 mol 0.677 mol 0.451 mol 83.0 mol
(a) How many moles of ammonium ions are in 0.405 g of ammonium carbonate? mol (b) What is the mass, in grams, of 0.0601 mol of iron(III) phosphate? (c) What is the mass, in grams, of 2.06 x 1023 molecules of aspirin, CyH8O4? (d) What is the molar mass of a particular compound if 0.072 mol weighs 6.14 g? g/mol Submit Answer
How many molecules (not moles) of NHs a moles) of NHs are produced from 2.89x104 g of H2? Express your answer numerically as the n umber of molecules. View Available Hint(s) molecules Submit Request Answer
a.) how many moles of iron is 66.8 g of Fe? __________________ mol Fe b.) How many grams of iron is 4.89 x 10-2 mol Fe? __________________ g Fe c.) How many atoms are present in 0.950 mol of uranium? _________________ x10 _________________ U atoms d.) 3.84 × 106 sulfur atoms is how many moles? __________________ x10 _______________ moles
f 2.81 moles of potassium reacts with 2.34 moles of oxygen, how many moles of potassium oxide is produced?
How many moles of argon are in 24.7 g of argon? mol