Identify the Lewis acid and base among the reactants in each of the following reactions, and also label the conjugate acid and base on the right side as well, if applicable:
a. HPO.?(aq) + F(0)
H PO, (aq) + HF
(14)
b. CN- (aq) + H2O (aq)
HCN
(aq) + OH
(aq)
C. HNO2 (aq) + OH',
(94)
# NO,'(aq) + H2O
(0)
d. :PC130 + BF3 (6)
HPCI - BF3 (8)

Infants born with severe respiratory problems are sometimes given liquid ventilation: they breathe a liquid that can dissolve more oxygen than air can hold. one of these liquids is a fluorinated compound, cf3(cf2)7br. the solubility of oxygen in this liquid is 66 mlo2 per 100 ml liquid. in contrast, air is 21 % oxygen by volume. calculate the moles of o2 present in an infant's lungs (volume: 12 ml ) if the infant takes a full breath of air. assume a pressure of 1 atm in the lungs.

An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture