Regents Chemistry Test Preparation Practice Table A Standard Temperature And Pressure

Regents Chemistry Test Preparation Practice

Table A Standard Temperature And Pressure

Which set of values represents standard pressure and standard temperature?*

(1) 1 atm and 101.3 K

(2) 1 kPa and 273 K

(3) 101.3 kPa and 0°C

(4) 101.3 atm and 273°C

Based on the atomic mass of the element nitrogen on the Periodic Table, compare the relative abundances of the naturally occurring isotopes of nitrogen. [1] Base your answers to questions 2 on the information below and on your knowledge of chemistry.

The melting points and boiling points of five substances at standard pressure are listed on the table below.

physical-behavior-of-matter, states-of-matter fig: chem82019-exam_g10.png

Identify the substance in this table that is a liquid at STP.*

Base your answers to questions 3 on the information below and on your knowledge of chemistry.

The enclosed cabin of a submarine has a volume of 2.4 × 10⁵ liters, a temperature of 312 K, and a pressure of 116 kPa. As people in the cabin breathe, carbon dioxide gas, CO₂(g), can build up to unsafe levels. Air in the cabin becomes unsafe to breathe when the mass of CO₂(g) in this cabin exceeds 2156 grams.

Convert the original air pressure in the cabin of the submarine to atmospheres.*