A titration reached the equivalence point when 16.1 mL of 0.209 M ...

[WWatsford]

A titration reached the equivalence point when 16.1 mL of 0.209 M H2SO4 (aq) was added to 12.0 mL of NaOH (aq) of unknown concentration. What is the concentration (M) of this unknown NaOH solution?
 
  A) 0.561
  B) 80.8
  C) 0.280
  D) 0.140
  E) 3.21

Question 2

How many grams of XeF6 are required to react with 0.579 L of hydrogen gas at 2.46 atm and 45C in the reaction shown below? XeF6(s) + 3 H2(g)  Xe(g) + 6 HF(g)
 
  A) 3.65 g
  B) 4.46 g
  C) 13.4 g
  D) 40.2 g

Question 3

Based on electron configuration, which is most likely colorless?
 
  A) Cu(NH3)42+
  B) Cd(NH3)42+
  C) Ni(NH3)62+
  D) Cr(NH3)5Cl2+
  E) Co(NH3)62+

Question 4

What is the term for the pseudoscience that attempted to discover a universal cure for disease and a magic elixir for immortality?
 
  A) alchemy
  B) biochemistry
  C) inorganic chemistry
  D) organic chemistry
  E) none of the above

[robbielu01]

Answer to Question 1

A

Answer to Question 2

B

Answer to Question 3

B

Answer to Question 4

A

[WWatsford]

TY

[robbielu01]

You're welcome