The literature value for the pKc of bromocresol green is 4.70 at 25 degrees Celsius. A student experimentally determined the pKc value of bromocresol green as 4.67. What is the % relative error for this student's result?

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

In which phase(s) do the molecules take the shape of the container?

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.