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Question- The molar heat of fusion for nitrogen is 710 j/mole. How many grams of N2 at it's melting point, can be melted by 1080 joules of heat
Please define why you think that's the right answer
The international unit for weighing diamonds and determine the volume of a 0.76 carat diamond if The density of diamond is given=3.51 g/cm3 ?express your answer in units of cm3
water softeners often replace calcium ions with in hard water with sodium ions. however the fda recommends that adults
Determine the final state and temperature of 100g of water orginally at 25 dgree after 50 kj heat added to it. Ist water, water steam or steam
a liter of solution contains 0.140 M Ca+2 and 0.140 M Pb+2. They are to be seperated using chromate (CrO4-2) to selectively precipitate out one metal.
During lab, we tested HCl and its diluted solution which resulted as pH1.14 and diluted one was pH 2.05. Another dilution was also done using weak acid HC2H3O2 which had pH 2.86 and the diluted one being pH3.45.
radioactive isotope x has been found in rock units s and q. isotope x breaks down into isotope z with a half life of
A hydrogen atom is removed from the first carbon atom of a butane molecule and is replaced by a hydroxyl group. Draw the new molecule formed.
Question- An inorganic cation has an electrophoretic mobility of 4.31?10^-4cm^2s^-1V^-1. This same ion has a diffusion coefficient of 9.6?10^-6cm^2s^-1.
Determine the amount of energy needed to turn 10g of H2O from 11degrees Celsius to 101degree Celsius? Draw a graph and colve the problem.
what colour is the light absorbed by Biuret reaction prodct. Give the structure of the part of protein molecule that reacts with the Biuret reagent in the Biuret reaction
Explain when the divider is broken, the ammonium nitrate dissolves as per to the following endothermic reactionNH4NO3 (s)--->NH4+NO3-(both aq).
if a raindrop weighs 63 mg on average and 5.1 105 raindrops fall on a lawn every minute what mass in kg of rain falls
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