Concentration and pH A 15.7 grams of Na2CO3 is dissolved in distilled water to make 1780 milliliter of solution. Calculate the molarity Na2CO3 solution.
A 0.05 grams of NaCl is dissolved in 1100 milliliter of distilled water. Calculate the ppm of NaCl solution. Assume a very dillute solution.
What is the pH of 0.0015 M NaOH?

Molar mass: Na = 23 g/mol ; C = 12 g/mol ; O = 16 g/mol

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons