How many milliliters of ozone gas at at 25.0C and 1.00 atm ...

[CORALGRILL2014]

How many milliliters of ozone gas at at 25.0C and 1.00 atm pressure are needed to react with 45.00 mL of a 0.100 M aqueous solution of KI according to the chemical equation shown below?
 
  O3(g) + 2 I-(aq) + H2O(l)  O2(g) + I2(s) + 2 OH-(aq)
 
  A) 55.0 mL
  B) 110. mL
  C) 165 mL
  D) 220. mL

Question 2

Determine the theoretical yield of H2S (in moles) if 4.0 mol Al2S3 and 4.0 mol H2O are reacted according to the following balanced reaction. A possibly useful molar mass is Al2S3 = 150.17 g/mol.
 
  Al2S3(s) + 6 H2O(l)  2 Al(OH)3(s) + 3 H2S(g) A) 12 mol H2S
  B) 4.0 mol H2S
  C) 18 mol H2S
  D) 6.0 mol H2S
  E) 2.0 mol H2S

Question 3

Which of the following anions has 2 oxygen atoms and a net charge of -1?
 
  A) permanganate
  B) chlorite
  C) bicarbonate
  D) nitrate

[ladyjames123]

Answer to Question 1

A

Answer to Question 2

E

Answer to Question 3

B

[CORALGRILL2014]

Excellent

[marict]

Gracias!