What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of 11.71?

The number at the end of an isotope’s name is the number.

What is bromine+calcium iodide--> calcium bromide +iodine balanced

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.