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
Comparison of the titration curves of three weak acids
Effect of changing a set point for hypothalamic values
Dew point/temperature relationships in (a) unsaturated air and saturated air (b and c).
Finding Added Sugars on the Label A food
Dried fruits often have sulfur dioxide or other sulfites added to them to preserve color and flavor
Two-point discrimination