120.00 mL of 0.400 M Pb(NO3)2(aq) is mixed with 154.00 mL of 0.300 M NaCl(aq). Assuming 100% yield, what mass (in g) of precipitate will form

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.