How many moles of solute are contained in a 250 ml solution that has a concentration of.85 m?

a) 210
b)0.21
c)3.4
d)0.29
e)0.85

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer