ochreimpala82

What do you mean by a buffer solution?

Give the name of the radioactive isotope of hydrogen?

Solutions were prepared to contain 100 grams of each of the following compounds in 1000 g of H2O. Which compound would give the lowest freezing point?
 A. CO2                      C. KBr
 B. C6H12O6               D. MgCl2

(A)
A compound A with molecular formula C₂₀H₂₀ClBrFN₅O₃S is hydrogenated to give a compound B with molecular formula C₂₀H₃₆ClBrFN₅O₃S. How many rings does compound A have? Assume that sulfur in this case has a valency (not valence electrons) of 4 in these molecules and that all other atoms have standard valencies.
A. 4 B. 3 C. 2 D. 1 E. None of the above
(B)
How many total bonds does compound B have?​
A. 74 B. 73 C. 72 D. 71 E. None of the above