Question

Approximately how many moles of Kr+ are contained in the laser tube at 0°C and 1 atm?

a. 3 x 10⁻⁷
b. 2 x 10⁻⁶
c. 4 x 10⁻⁵
d. 5 x 10⁻⁴

Answer 1

Without the volume of the laser tube, it's not possible to calculate the number of moles of Kr+ at 0°C and 1 atm. Additional information, such as the volume, is needed to apply the ideal gas law.

Step-by-step explanation:

To determine approximately how many moles of Kr+ are contained in a laser tube at 0°C and 1 atm, we can use the ideal gas law equation PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/K·mol), and T is the temperature in Kelvin. However, the volume of the laser tube is not given, so we cannot calculate the moles directly from the information provided. If you have additional data such as the volume of the laser tube, you can calculate the number of moles using this equation.