sharondacarruth9427 sharondacarruth9427
  • 27-04-2021
  • Chemistry
contestada

5. The number of atoms in 9.2 g of Na will be: A. 6.2 x 1023 atoms B. 2.408 x 1023 atoms C. 9.2 x1023 atoms D. 23 atoms E. 9.2 atoms

Respuesta :

codiepienagoya codiepienagoya
  • 28-04-2021

Answer:

The answer is "Option B"

Explanation:

Formula:

Na atoms= Na atoms moles \times  NA

               [tex]= \frac{mass}{Na \ Molar\ mass} \times 6.022 \times 10^{23}\\\\= \frac{9.2}{23} \times 6.022 \times 10^{23}\\\\=0.2875 \times 6.022 \times 10^{23}\\\\=2.4 \times 10^{23}\ atoms \\\\[/tex]

                                     

Answer Link

Otras preguntas

hola people :)what's 2 + 4I'm bóred and exhausted ^-^anyone up for a tàlk?​
what is the effective yield the investor would expect if the tax rate of the investor is 30% and the nominal yield offered on a taxable investment is 12%
ill give you brainliest just answer the question?
Select the common types of spam. Trojan horses worms advance fee fraud schemes phishing illegally pirated software pyramid schemes spyware fake health products
For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −80 °C. The physicist changes the metal's tempe
(25 points + brainliest) 4x-2x+5-1x
help pls i will give brainiest
Which subnet would include the address 192. 168. 1. 96 as a usable host address?.
how wide is a elodea leaf​
What type of process strategy is most suitable for an organisation with high product variety but low volume of output?