What is the MOLAR heat of combustion of methane(CH4) if 64.00g of
methane are burned to heat 75.0 ml of water from 25.00°C to 95.00°C?
(Water heat capacity-4.184 J/g°C)
5492 J/mol
21970 J/mol
343.0 J/mol
O
1373 J/mol

Which of the following words describe the reality that the universe looks the same from various perspective

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity