Answer:
Sodium
(Na)
Just count the electrons and search which atom it is.
153g/mols I think this is the answer but not 100% sure.
For C, they would be the same. At the equivalence, you have equal moles of both the acid and the base.
Explanation:
electrons surrounds the necleus. Electrons have a negative charge. Protrons has positive
Answer:
3.0002 moles
Explanation:
Data Given:
mass of NO₂ = 138.01 g
No. of moles NO₂ = ?
Solution
To find mass of sample mole formula will be used
mole formula
no. of mole = mass in grams / molar mass
Molar mass of NO₂ = 14 + 2(16)
Molar mass of NO₂ = 14 + 32 = 46 g/mol
Put values in above equation
no. of mole = 138.01 g / 46 g/mol
no. of mole = 3.0002 moles
no. of mole of NO₂ = 3.0002 moles