[{"Name":"Properties of Gases","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"Liquid Pressure","Duration":"10m 45s","ID":18157},{"Watched":false,"Name":"Gas Pressure","Duration":"6m 39s","ID":18158},{"Watched":false,"Name":"Exercise 1","Duration":"3m 53s","ID":23807}],"ID":81068},{"Name":"Gas Laws","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"Boyle\u0026#39;s Law","Duration":"5m 2s","ID":18162},{"Watched":false,"Name":"Exercise 1","Duration":"3m 36s","ID":23822},{"Watched":false,"Name":"Exercise 2","Duration":"3m 29s","ID":23824},{"Watched":false,"Name":"Charles\u0027s Law and STP","Duration":"7m 58s","ID":18968},{"Watched":false,"Name":"Exercise 3","Duration":"2m 42s","ID":23823},{"Watched":false,"Name":"Avogadro\u0027s Law","Duration":"3m 5s","ID":18970},{"Watched":false,"Name":"Exercise 4","Duration":"2m 41s","ID":23825},{"Watched":false,"Name":"Exercise 5","Duration":"3m 2s","ID":23826},{"Watched":false,"Name":"Ideal Gas Equation","Duration":"10m 31s","ID":18969},{"Watched":false,"Name":"Exercise 6","Duration":"6m 33s","ID":23827},{"Watched":false,"Name":"Exercise 7","Duration":"5m 22s","ID":23828},{"Watched":false,"Name":"Determining Molar Mass from Ideal Gas Equation","Duration":"3m 46s","ID":18164},{"Watched":false,"Name":"Exercise 8","Duration":"6m 10s","ID":23829},{"Watched":false,"Name":"Determining Gas Density from Ideal Gas Equation","Duration":"4m 14s","ID":18165},{"Watched":false,"Name":"Exercise 9","Duration":"5m 8s","ID":23830},{"Watched":false,"Name":"Exercise 10","Duration":"4m 33s","ID":23831},{"Watched":false,"Name":"Law of Combining Volumes","Duration":"7m 13s","ID":18172},{"Watched":false,"Name":"Exercise 11","Duration":"5m 17s","ID":23833},{"Watched":false,"Name":"Exercise 11 - Alternative Solution","Duration":"2m 7s","ID":23832},{"Watched":false,"Name":"Exercise 12","Duration":"9m 37s","ID":23834},{"Watched":false,"Name":"Exercise 13","Duration":"6m 18s","ID":23821}],"ID":81069},{"Name":"Mixtures of Gases","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"Dalton\u0027s Law of Partial Pressures - Theory","Duration":"4m 11s","ID":18159},{"Watched":false,"Name":"Dalton\u0027s Law of Partial Pressures - Example","Duration":"4m 41s","ID":18160},{"Watched":false,"Name":"Collecting Gas over Water","Duration":"5m 52s","ID":18161}],"ID":81070},{"Name":"Kinetic Theory of Gases","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"Kinetic Molecular Theory of Gases - Part 1","Duration":"6m 40s","ID":18166},{"Watched":false,"Name":"Kinetic Molecular Theory of Gases - Part 2","Duration":"7m 17s","ID":18167},{"Watched":false,"Name":"Maxwell-Boltzmann Distribution","Duration":"8m 20s","ID":18168},{"Watched":false,"Name":"Graham s Law of Effusion","Duration":"9m 5s","ID":18169}],"ID":81071},{"Name":"Nonideal Gases","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"Nonideal Gases - Theory","Duration":"8m 55s","ID":18170},{"Watched":false,"Name":"Nonideal Gases - Example","Duration":"4m 47s","ID":18171}],"ID":81072}]

[{"ID":81068,"Videos":[18157,18158,23807]},{"ID":81069,"Videos":[18162,23822,23824,18968,23823,18970,23825,23826,18969,23827,23828,18164,23829,18165,23830,23831,18172,23833,23832,23834,23821]},{"ID":81070,"Videos":[18159,18160,18161]},{"ID":81071,"Videos":[18166,18167,18168,18169]},{"ID":81072,"Videos":[18170,18171]}];

[18170,18171];

1.1

5