Nitrogen gas (N2) and hydrogen gas (H2) react to produce ammonia (NH3) according to this balanced equation. N2 (8) + 3 H2(g) → 2 NH3 (8) How many liters of H2, measured at standard temperature and pressure, are required to react completely with 11.2 L of N2? A. 16.8L B. 22.4L OC. 33.6L D. 44.8 L

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology