1. How many moles of Pb is 9.34 x 1015 atoms of Pb?

The temperature is 78°F and the dewpoint is 59°F. Find the ratio of vapor pressure to the saturation vapor pressure of air.

What is the control variable, independent variable, dependent variable for the filtration process.

-Screen reader description: The Ordinary Phases of Carbon Dioxide. Pressure (Pa) 10 to the power of 0 to 10  up to 10 to the power of 8 on Y-axis. Temperature in Kelvins 0 to 700 on X-axis. Curved line up from 105 K at 10 to the power of 0 Pa up to 200 K and 10 to the power of 6 Pa. The line forks here. There is an almost vertical line up to 10 to the power of 8 Pa, and a line that goes diagonally up and to the right to 325 K and 10 to the power of 7 Pa. To the left of the fork is "Solid". To the right of the fork is "Gas". In between the lines of the fork is "Liquid".   End of image. The pressure is decreased slowly from 107 Pa at 150 K. Which of these best describes what is observed?   It starts out as a solid, then becomes a liquid, then becomes a gas.   It starts out as a gas, then becomes a solid, then becomes a liquid.   It starts out as a liquid, then becomes a solid, then becomes a gas.   It starts out as a solid, then becomes a…

Please Describe and specify the use made of the equipment shown.