What pressure (in atmospheres) is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20°C?

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?