frankthetank99 frankthetank99

13-05-2021
Chemistry

contestada

NEED HELP ASAPPP

What is the number of beryllium atoms in 78.0g of Be?

Respuesta :

keijosalonen keijosalonen

13-05-2021

Answer: number of atoms is 5.21 · 10^24

Explanation: Atomic mass of Be is 9.012 g/mol.

Number of moles n = m/M = 78.0 g / 9.012 g/mol =

Multiply this with Avogadro number Na = 6.022*10^23 1/mol

Answer Link

Otras preguntas

what do multimillion -dollar sportsmanship of famous athlets symbolize

Cells require glucose as a source of energy to carry out life processes. Large molecules like glucose cross the cell's plasma membrane by A) being pumped throug

What is the path of air in the respiratory system.

2. Which kingdom consists only of complex multicellular, eukaryotic organisms which must consume or ingest other organisms for nutrition?

3. How did the views of Native Americans and Europeans differ in terms of property ownership?

Summer rains and bad weather in Europe in the early fourteenth century resulted in _____.

how do products of photosynthesis reach the other parts of the plant body

17y = 85; y= 5 Im not sure?

From which Asian region did the Tale of Genji come from? A. China B. Japan C. Korea D. Vietnam

The style of writing that uses fragmented thoughts running through a character's mind is known as a. stream of consciousness. b. figurative language. c. expo