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

Which number has the greatest absolute value? A. 0 B. –20 C. –10 D. 10
What is the definition of a "revolution"? user: which planet is closest to the sun? a. mercury b. venus c. mars d. jupiter
After her time as First Lady, Eleanor Roosevelt campaigned for women’s rights, believing
While performing an experiment involving a reaction between two chemicals, the scientist observes that the reaction container has become warm. The observation i
PLEASE HELP ME SOMEONE!
Use the following information to answer the question: Cost of car: $26,000 Residual value: $6,000 Life: 5 years Using the given information, determine the dep
The scientific name for an organism comes from its
When we assume differences we ________________.
The area of a rectangle is (27x5 + 9x4 - 18x3) square feet. The width of the rectangle is 9x2 feet. What is the width of the rectangle?
How are states divided so that everyone within the state has equal representation in their state’s legislature?
good job