An unknown gas occupies a volume of 1250 mL at 26 °C and 705 torr. If the mass is 2.37 g, what is the molar mass of the gas? (R=0.0821 atm-L/mol-K) 67.5 g/mol 78.4 g/mol O 50.2 g/mol O 14.0 g/mol O 43.2 g/mol

Can you please please rewrite the question in your own words to clarify it, also write a useful hint to help you understand this problem and Provide the correct answer? Show the calculation and briefly describe the steps At the very end, write a paragraph addressing any knowledge/skill gaps, deficiencies in how you approach studying, and specifics on how you will improve Please answer fast and please try to answer all

Potassium nitrate was synthesized in an experiment using 10 mL of nitric acid and excess potassium hydroxide. The mass data obtained from the experiment is shown in Table 1 below. Given that the percentage yield of potassium nitrate was 88.3 %, calculate the concentration (% m/v) of the nitric acid used in the experiment. Table 1: Mass data for the synthesis of potassium nitrate from nitric acid and potassium hydroxide Mass of clock glass and crystallized potassium nitrate/ g 45.55 Mass of empty clock glass/ g 39.18

What states of matters do metals typically exist

Chlorine gas and solid potassium combine to produce solid potassium chloride.  Write a balanced chemical equation for this reaction.

PROFILE OF LEAD: PLEADE COMMENT IN SOME EXTEND THE PHYSICAL AND CHEMICAL PROPERTIES OF HEAVY METAL LEAD