54. What mass of helium is needed to pressurize an evacuated 25.0-L tank to a pressure of 120. atm at
25 °C?

DUE TONIGHT! LINKS DONT WORK SO PLS SHOW WORK. THANK YOU

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Which of the following is true about the speed of light? it depends on the wavelength.

Is 343 in the sequence -5, -2, 1, 4, 7