MgBr2 is the chemical formula for magnesium bromide
Helium only possesses two valence electrons, while the other noble gasses posses eight
Answer:
yes 150.0grams = 150grams
Use the atomic mass of potassium, k, 39.1 g/mol, and the formula n = mass / atomic-mass.
Where n is the number of moles.
n = 250.0 g / 39.1 g/mol = 6.3939 mol.
Now multiply by Avogadro number to find the number of atoms:
6.3939 mol * 6.02*1023 atoms/mol = 38.49 * 10^23 atoms = 3.849 * 10^24.
Answer: 3.85*10^24
Explanation:
the correct empirical formula for C6H12O6 is CH2O...
hope it will help....
