soulmates7671 soulmates7671
  • 10-06-2017
  • Chemistry
contestada

How many total atoms are in 0.690 g of P2O5?

Respuesta :

LeChatNoir
LeChatNoir LeChatNoir
  • 10-06-2017
M P₂O₅ = 31g×2 + 16g×5 = 142g/mol

1 mole of P₂O₅ contains 5 moles of atoms
5 moles of atoms = 30,01×10²³ a.

142g ----------- 30,01×10²³ a.
0,69g ---------- X
X = (0,69×30,01×10²³)/142
X = 0,14626×10²³ = 1,4626×10²² atoms

:)
Answer Link

Otras preguntas

An eating disorder is a physical disease in which the individual is cured once she/he becomes a healthy weight.
A 0.10 M HF solution is 8.4% ionized. Calculate the H+ ion concentration.
hello i need help with question 5 please
A block on the end of a spring is pulled to position x=a and released from rest. In one full cycle of its motion, through what total distance does it travel?.
In a tropical coastal environment, a city is considering allowing developers to drain a saltwater wetland area to build a new resort to bring in tourists. What
Kenneth opened a savings account and deposited $300.00 as principal. The account earns 14% interest, compounded annually. What is the balance after 8 years? Use
y = 2x +6 y = −2x − 4
3) What is a major drawback to a map?
In a random sample of 9 residents of the state of Montana, the mean waste recycled per person per day was 2.8 pounds with a standard deviation of 0.68 pounds. D
Personajes del cuento cazadores cazados