Page:Philosophical Transactions of the Royal Society A - Volume 184.djvu/566

Hydrogen as before—

Volume 45.6 = 3823.5Temperature = 15.4° C.

		millims.		millims.
Height of mercury in manometer tube on scale	=	115.8	on cathetometer	= 7.1
Height of„ mercury in„ volume tube on scale	=	115.5	on cathetometer„	= 6.8
Height of mercury in Correction=	+	0.3		+ 0.3

		millims.
Barometer 777.6 − 25.7	= 751.9
Pressure of aqueous vapour	= 013.0
Pressure of hydrogen = 751.9 + .3 − 13.0		= 739.2

Residue (of oxygen)—

Volume 8.6 = 56.5Temperature = 15.4° C.

		millims.		millims.
Height of mercury in manometer tube on scale	=	491.9	on cathetometer =	10.0
Height of„ mercury in„ volume tube on scale	=	484.7	on cathetometer„ =	02.8
Height of mercury in Correction	+	007.2	+	07.2

		millims.
Barometer = 777.7 − 25.4	= 752.3
Pressure of aqueous vapour	= 013.0
Pressure of gas = 752.3 + 7.2 − 13.0		= 746.5

On analysis of residue .6 of unabsorbable gas remained after treatment with potassium hydrate and pyrogallol; no carbon dioxide being detected.

Total oxygen volume reduced to 0° C. and 760 millims. pressure, becomes

			millims.
	3881.0 × 737.8/760.0 × 273.0/288.4	=	3566.4
Residual volume
	0056.5 × 746.5/760.0 × 273.0/288.4	=	0052.5
			0000.6
Hydrogen volumes become Oxygen in residue		=	0051.9
Hydrogen volumes become
	3819.6 × 738.6/760.0 × 273.00/288.35	=	3514.4
	3823.5 × 739.2/760.0 × 273.0/288.4	=	3520.2
Hydrogen volumes become Total hydrogen volume		=	7034.6