Calculate the amount of substance, which is 392 kg of phosphoric acid. How many hydrogen atoms
August 4, 2021 | education
| Calculate the amount of substance, which is 392 kg of phosphoric acid. How many hydrogen atoms will this portion of the acid contain?
Given:
m (H3PO4) = 392 kg
Find: n (H3PO4), N (H)
Solution:
M (H3PO4) = 98 g / mol
nH3PO4) = 392/98 = 4 mol
N (H) = 3 * 4 * 6 * 10 ^ 23 = 72 * 10 ^ 23
Answer: 4g / mol, 72 * 10 ^ 23
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.