A deep underground cavern contains 3.35 × 10 ^ 6 L of ethane gas ( C2 H6) at a pressure of 2.50 × 10 ^ 3 kpa & temperature of 370 degree Celsius. How many grams of C2H6 does the cavern contain? ( R = 8.31 L. kpa / K/mol)

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all eukaryotic cell have mitochondria : )

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.