Karen measures the volume of gas at 200 k and 100 kpa. to correct her measurement to standard temperature and pressure (stp), what must she do?

a. make a volume correction based on a higher temperature of 273 k
b. make a volume correction based on a higher pressure to 200 kpa
c. make a volume correction based on a lower temperature of 73 k
d. make a volume correction based on a lower pressure of 50 kpa

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h