0.0137 mol
true
16 grams of oxygen how many moles is 0,5 moles.
moles of what?
2 moles of Ca and 4 moles of OH
The answer is 10 moles.
There are 3 ions present in K2CO3: 2 K+ ions and 1 CO3^2- ion. To calculate the total number of ions in 30.0 mL of 0.600 M K2CO3 solution, first determine the number of moles of K2CO3 using the molarity and volume. Then, use the stoichiometry to find the number of ions produced per mole of K2CO3.
1,5 moles of potassium carbonate have 276,41 g.
true
To prepare a 0.50 by volume (v/v) K2CO3 solution, you need 0.50 liters of K2CO3 per 100 mL of solution. For 150 mL, this means you need 0.75 mL of K2CO3. The density of K2CO3 is approximately 2.43 g/cm³. Therefore, the mass of K2CO3 needed is calculated as follows: 0.75 mL × 2.43 g/mL = 1.83 grams.
K= 2 C= 1 O=3 K2CO3= 6 atoms
As indicated by the subscript on the atomic symbol for oxygen, there are 3 oxygen atoms.
Since the ratio of moles of Al to moles of Al2O3 is 4:2, if 5.23 mol Al completely reacts, 2.615 mol Al2O3 can be made.
Of course 6 moles.
16 grams of oxygen how many moles is 0,5 moles.
moles of what?
55.8 moles
2.70 m = 2.70 moles/kg solvent3250 g solvent = 3.25 kg solvent2.70 moles/kg x 3.25 kg = 8.775 moles NaNO3 = 8.78 moles NaNO3 (3 significant figures)