Calculate the mass of sodium trioxocarbonate (iv) needed to give 50.4dm3 of carbon (IV) oxide at s. t.p in the following reaction.

Na2CO3(s) + 2HCl(aq) >2NaCl(aq) + CO2(g) + H2O(l)

[ Na = 23, O = 16, C = 12, molar volume of gas at s. t.p =22.4dm3]

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?

What atom has the largest atomic radius

The goal of this experiment was to answer the question "what is the effect of a gas' temperature on its volume? " you formulated the hypothesis below. hypothesis: if a fixed amount of gas is heated, then the volume will increase because the heat will cause the molecules of gas to move faster and further apart. to test this hypothesis, you changed the of the gas between 0 and 100°c (273 and 373 k) and calculated the resulting of the gas.