Consider 1 kg of helium at 500 k. assuming that the total internal energy of helium is due to the mean kinetic energy of each atom summed over all the atoms, calculate the internal energy of this gas. note: the molecular weight of helium is 4. recall from chemistry that the molecular weight is the mass per mole of gas; that is, 1 mol of helium contains 4 kg of mass. also, 1 mol of any gas contains 6.02 × 1023 molecules or atoms (avogadro’s number).
ti + 2 cl2 → ticl4
(3.00 g ti) / (47.867 g ti/mol) = 0.062674 mol ti
(6.00 g cl2) / (70.9064 g cl2/mol) = 0.084619 mol cl2
0.084619 mole of cl2 would react completely with 0.084619 x (1/2) = 0.0423095 mole of ti, but there is more ti present than that, so ti is in excess and cl2 is the limiting reactant.
(0.084619 mol cl2) x (1 mol ticl4 / 2 mol cl2) x (189.679 g ticl4/mol) = 8.025 g ticl4 in theory
(7.7 g) / (8.025 g) = 0.96 = 96% yield ticl4
i have know clue i guess aluminum
i think lol
universal ph paper turns red if it is very strongly acidic, turns orange if it is strongly acidic, turns yellow if it is weakly acidic, green if it is weakly alkali and blue if it is strongly alkali.
solution a will turn orange as it is strongly acidic
solution b will turn blue as it is strongly alkali
solution c will turn yellowish green as it is neutral