Physical properties of hydrogen peroxide
Pure hydrogen peroxide is a pale-blue syrupy liquid with a bitter taste. It is soluble both in water and alcohol. Its density is 1.469 g/mL. It melts at 272.4 K (- 0.7C) and boils under 760 mm of Hg pressure at 423.2 K (150C) with violent decomposition. Howe..
Hydrogen Bonding in Water and Ice
>As a result of tetrahedral arrangement of H 2 O molecules in the solid state, the ice structure extends in three dimensions. Further the molecules of H 2 O are not packed closely as hydrogen bonds between oxygen and H atoms are longer tha..
Upper fixed point:
Boiling point of pure water at normal atmospheric pressure is regarded as the lower fixed point. ..
Boiling point of pure water at normal atmospheric pressure is regarded as the lower fixed point. ..Which point reads (0, 2)?
Which point reads (0, 2)? => R or P or S or Q..
Find the distance between the points G and H in the coordinate plane.
Find the distance between the points G and H in the coordinate plane. => 2 units or 3 units or 4 units or 6 units..
The pH Scale
The pH Scale - The strength of acids and bases can be expressed in terms of the concentration of the hydronium ions or hydroxyl ions in a solution. The concentration of hydronium ions in a solution can be expressed as moles of hydronium ions per litre of solution. This is expressed by a t..
The pH Scale - The strength of acids and bases can be expressed in terms of the concentration of the hydronium ions or hydroxyl ions in a solution. The concentration of hydronium ions in a solution can be expressed as moles of hydronium ions per litre of solution. This is expressed by a t..The pH Scale
It is quite clear that the strength of acids and bases can be expressed in terms of the concentration of hydrogen ions, i.e., hydronium ions (H 3 O + ) or hydroxyl ions (OH - ) in a solution. The concentration of hydronium ions in a solution can be expressed as moles of hydron..
Points to Remember
Points to Remember - Cell is the structural and functional unit of life. The direction in which water flows from one cell to another cell depends on the water potential. Two factors which affect the water potential are the amount of solutes and the external pressure. Due to endosmosis pro..
Points to Remember
Points to Remember - Equation of photosynthes..
Points to Remember - Equation of photosynthes..Neighborhood of a Point
- Limits of a function A real number l is called the limit of the function f, if given any ε there exist a δ > 0 such that f(x)-1< ε whenever 0 <x-a< δ That means, 1 - ε < f(x) Left limit is denoted by lim x ->a- and right limit as lim x->a+ ..
Result
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