What is the pH of 0.5 L of a 1.2 M solution of ammonia containing also 2.0 g of NaOH?

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

What term describes technology that operates on an atomic level