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vapour pressure of water at 293 k is 17535mmhg calculate the vapour pressure of water at 293 k when 25g of glucose is dissolved in 450 g of
state the purification processes commonly used by organic chemists to separate different components from a
quesa given the values below calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of
i have a question on hydrophobicity i have a product called neverwet that creates a hydrophobic surface on stuff there3939s a base and top spray the
account for the effects of solvents on the wavelength of absorption of the acetone in terms of the hydrogen bonding properties of the solvent
the w-cell consists of a cadmium amalgam anode and a mercury-mercurous sulfate cathode with a saturated cadmium sulfate solution as the electrolyte
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what is the net flux of the uniform electric field of exercise 115 through a cube of side 20 cm oriented so that its faces are parallel to the
qwaht are standard temperature and pressureans the agreed set of conditions for comparison of gas volumes is called standard temperature and
q briefly explain about diffusion of gasesans the following are some important points on the diffusion of gasesgas molecules have an average
q illustrate kinetic molecular theory of gasesansthe behavior and properties of gases can be explained by the kinetic molecular theory kmt a gas that
q explain basic physical properties of gasans gases are the least dense phase of matter gases can be easily expanded or compressed they exert
q what is entropyansthe strangest thing about entropy is that it is denoted by the letter sentropy is the measure of the disorder in a system a
q what is spontaneous reactionsans spontaneous reactions can occur under specific conditions without any assistance most of the reactions you know
q what is spontaneous processesans spontaneous processes are events which occur without any assistance when an object is held above the floor it
q what is standard enthalpy of formationansit is really difficult to measure the total energy content or absolute entropy of a substance in order to
q determine the heat transferans lets say a blacksmith tosses a hot horse shoe into a bucket of water the horseshoe will get cooler while the water
q what is si unit of energyansthe si unit of energy is called the joule a joule is a pretty small mount of energy so often chemists will use the
q what is basic diffrence between heat and temperatureans heat is energy which flows from hot objects to cooler ones it flows because of the
the mass of cacl2 molar mass 1110 required to prepare 7500 milliliters of a 2000 molar solution of this salt
q explain laws of electrolysisans a spontaneous reaction takes place by itself some redox reactions are not spontaneousin a non-spontaneous
q explain working of galvanic cellans there are several types of electrochemical cells one type of electrochemical cell is called a galvanic cell a
q explain the working of chemical cellans a chemical cell can be set up by dipping two different metals in an electrolyte and connecting the