A series of chemical problems with key for use in colleges and schools / by T.E. Thorpe. Rev. and enl. by W. Tate ; with a preface by H.E. Roscoe.

  • Thomas Edward Thorpe
Date:
1891
Catalogue details

Licence: Public Domain Mark

Credit: A series of chemical problems with key for use in colleges and schools / by T.E. Thorpe. Rev. and enl. by W. Tate ; with a preface by H.E. Roscoe. Source: Wellcome Collection.

    52/160 (page 40)
    (2UEST10NS.—Deduce the formulre of the following substances:— 96. Hydrogen . . 5-88 Oxygen • 94’I2 lOO'OO 97. Nitrogen . • 30-43 Oxygen. . • 69-57 I OO'OO ! 98. Iron . . . . /O’OI Oxygen. . ■ 2999 I OO'OO 99. Carbon . . . 20-00 Oxygen . . 26-67 Sulphur • 53‘33 100-00 too. Potassium . • 28-73 Hydrogen . • 0-73 Sulphur. . . 23-52 Oxygen. . . 47'o2 I OO'OO 101. Magnesium • 9-76 Sulphur • 13-01 Oxygen . . . 26'0I Water . . . 51*22 I OO'OO 102. Zinc . . . . 22*70 Suljdiur . 11-15 Oxygen . 22'28 Water . . • 43-87 ] OO'OO 1103. Calcium . . • 38-72 Phosphorus . . 20 00 Oxygen . . . 41-28 I OO'OO 1104. Sodium . . • 32-79 Aluminium . , 13-02 Fluorine . . ■ 54-19 I OO'OO 105. Potassium • 45'95 Nitrogen . . • i6'45 Oxygen . . • 37-6o I OO'OO Jo6. Aluminium . . . 16 Sulphur . . . . 28 Oxygen . . . . 56 100 107. Copper . . ■ 57-46 Carbon ■ 5'43 Hydrogen. . . 091 Oxygen . . . 36'20 100*00 t 108. Hydrogen • 3'i8 Oxygen . . • 33-88 Nitrogen . . • 14-84 .Sulphur ■ '6-95 Nickel . . . ■ 31-15 I OO 'OO