The 1H NMR spectrum of compound A (C15H14O) shows only two signals: a multiplet at 7.15 ppm and a singlet at 3.55 ppm in a 5:2 ratio. The IR spectrum has no absorption in the 3200–4000 cm–1 region, but strong peaks can be found near 1700 cm–1. Compound A reacts with NaBH4 followed by acidification to give compound B of the molecular formula C15H16O. The reaction of A with CH3MgBr, and then with H3O+, gives C, with a molecular formula of C16H18O. Suggest structures for B and C.

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

Chromosome 17 is made of over million base pairs.