rholbrook7360 rholbrook7360
  • 11-06-2017
  • Chemistry
contestada

How many aluminum atoms are in 3.28 g of al2s3?

Respuesta :

LeChatNoir
LeChatNoir LeChatNoir
  • 11-06-2017
m Al₂S₃: 27g×2 + 32g×3 = 150 g/mol

150 g/mol  Al₂S₃ ==>> 2 moles of Al ==>> 12,04·10²³ atoms of Al
--------------------------------------
150g ------- 12,04·10²³  Al
3,28g ------ X 
X = (3,28×12,04·10²³)/150g
X = 0,2633·10²³ = 2,633·10²²  aluminium atoms

Answer Link

Otras preguntas

Read the following e-mail, and then answer the question below. Dear Sandra, Attached are the estimated project times you requested. I would appreciate it if yo
The Spanish Flu epidemic of 1918 was responsible for many deaths between 1918 and 1920. Which of these would be QUALITATIVE data to describe the flu? A) Over 20
Solve for x -2a+6=22
What type of model uses molded clay, soil, and chemicals to simulate a volcanic eruption?
A research balloon at ground level contains 12 L of helium (He) at a pressure of 725mmHg and a temperature of 30.00∘C. When the balloon has risen to its highest
What is the standard form of this expression? (4y - 9/2y - 3)
Which expression is a PRODUCT? A) 8(6+3) B) 8/(6+3) C) 5(2)+2(6•3) D) 5(2+3)-4(8+1)
A puppy matures into an adult through ? and ?​
Roberto got $30 for his birthday. He decides to save that amount and add $5 to his savings each week. Jack starts saving the same day as Roberto and puts $8 in
Chlorine forms a number of oxides with the following oxidation numbers: 1, 3, 4, 6, and 7. These compounds are stable and neutral. Write an empirical formu