Freon-12 gas is a widely used refrigerant. A 3.74 liter sample of Freon-12 is at a pressure of 6.42 kPa and a temperature of 273 K. Calculate the new pressure of
the gas if the volume changes to 8.64 liters at 284 K.

Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.