Relative Atomic Mass
An atom or a molecule is a very minute particle; the actual mass of an atom is extremely small. The mass of atoms extends from 1.67 x 10 - 2 4 g (hydrogen) to 4.0 x 10 - 2 2 g only. It is physically not possible to measure such small and light masses easily. In 1811, Avagadro suggested that ..
An atom or a molecule is a very minute particle; the actual mass of an atom is extremely small. The mass of atoms extends from 1.67 x 10 - 2 4 g (hydrogen) to 4.0 x 10 - 2 2 g only. It is physically not possible to measure such small and light masses easily. In 1811, Avagadro suggested that ..Relative Density of Solids which Float in Water
Relative density of solids like wax, cork etc. is determined by the following method. Choose a sinker and find its weight in water by suspending it in water as shown in figure (a) below. Tie the solid cork to the string attached to the sinker and find its weight in air..
Relative density of solids like wax, cork etc. is determined by the following method. Choose a sinker and find its weight in water by suspending it in water as shown in figure (a) below. Tie the solid cork to the string attached to the sinker and find its weight in air..Relation between Cp and Cv (Mayer's Formula)
Let us consider one mole of an ideal gas enclosed in a cylinder fitted with an airtight and frictionless piston. Let P, V and T be the pressure, volume and absolute temperature of the gas respectively. Let heat energy Q 1 be supplied to the gas be supplied at constant volume so that temperature ris..
Let us consider one mole of an ideal gas enclosed in a cylinder fitted with an airtight and frictionless piston. Let P, V and T be the pressure, volume and absolute temperature of the gas respectively. Let heat energy Q 1 be supplied to the gas be supplied at constant volume so that temperature ris..find anything related to the Genetic Feedback Model
). The protein is also called CAP (for catabolite activator protein). The cAMP-CRP complex binds to a region of the lac operon just upstream of the region bound by RNA polymerase and that somewhat overlaps that of the repressor binding site of the operator region. The binding of the cAMP-..
A can of French onion soup weighs 325 grams. The weight of a box of n ..
A can of French onion soup weighs 325 grams. The weight of a box of n cans of the soup is W . Which of the following equations best relates the variables? => W = 325 / n or W n = 325 or W = n / 325 or W = 325( n )..
The table shows the maximum pulse rate for people of different age, du..
The table shows the maximum pulse rate for people of different age, during aerobic activities. Age (years) 20 30 40 50 Pulse rate (beats/min) 175 166 157 148 Choose the relation that best represents the table. => The pulse rate doubles with age. or The pulse rate decreases with ..
Solution
Molecular weight of acetic acid = 60 Weight of acetic acid = 15 gms. Volume of the solution = 2 litres. Active mass = number of moles/litre 5..
Molecular weight of acetic acid = 60 Weight of acetic acid = 15 gms. Volume of the solution = 2 litres. Active mass = number of moles/litre 5..Example: 11
One gram of pure sulphur dioxide has a volume of 350 ml at STP. What is the Relative Molecular Mass of sulphur dioxi..
Interpreting mass spectra
The most obvious piece of information from mass spectra is the molecular weight of the compound. Measurement of an unknown's molecular weight allows us to narrow the possibilities for molecular formula down to only a few choices. A second piece of ..
Example: 22
A compound has the following percentage composition: N = 35%, H = 5%, O = 60%. Its relative molecular mass = 80. Assuming it is an ammonium compound, derive its possible molecular formula. (N=14, H=1, O=1..
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