A sample of 4.25 moles of Hydrogen at 20.0 ⁰C occupies a volume of 25.0 L. Under what pressure is this sample?

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.