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The 'size' by thef an atom is sometimes considered to be measured by density of the radius of a sphere that contains 90 per cent of the charge density of the electrons in the outermost occupied orbital. Calculate the 'size' of a hydrogen atom in its ground state according to this definition. Go on to explore how the 'size' varies as the definition is changed to other precentages, and plot your conclusion.
Diamonds are measured in carats, where 1 carat=0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond
The activation energy of an uncatalyzed reaction is 88kj/mol . The addition of a catalyst lowers the activation energy to 60kJ/mol . a. Assuming that the collision factor remains the same, by what factor will the catalyst increase the rate of the ..
Calculate the pH of this solution. When 0.20 mol of H+ ions is added to the solution what is the pH (assuming volume change is negligible)
neutral compound show traces of an acid as an impurity wheras the acid might not show any traces of a neutral compound?
How much heat was transferred from the tank? b) What is the final temperature of the tank contents? c) How much steam condensed, in kg? for a i found the difference in enthalpies but i cant figure out b, c
Would the following rocedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case
During ther processing of black-and-white film, excess silver (I) halides are removed by wadhing the film in a bath containing sodium thiosulfate. This treatment is based on the followig complexation reaction:
Assuming that its molar heat of vaporization is constant at 28.4 kJ/mol, the boiling point of C2H5NH2 when the external pressure is 0.709 atm is K.
Aluminum nitrate and annonium chloride react to produce aluminum chloride, nitrogen and water. what mass of aluminum chloride is present after 43 g of aluminum nitrate and 43 g of amminium chloride have reacted completely
Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range
A brewery has a horizontal conveyor belt to transfer malted barley from a storage silo to the mash tun (the large vessel where the malted barley is steeped in hot water).
Determine how many grams are in 1 mole of salt. How many individual ionic compounds of NaCl are in 1 mole
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