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A particular flask has a mass of 17.4916 grams when it is empty. When has mass of the flask is = 43.9616 grams filled with ordinary water at twenty degree celsius(density = 0.9982 g/mL),. The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
Determine the mass of propylene glycol neded to substitute one gallon of ethylene glycol and also find out the volume of propylene glycol, required to get the same antifreeze protection as one gallon of ethylene glycol.
What is the order of the reaction if it takes 10 minutes, 20 minutes, 30 minutes to reach 75% conversion?
Chlorine consists of two major isotopes with the following atomic masses: 35Cl (34.9689 amu) and 37Cl (36.9659 amu). The average atomic mass of chlorine is 35.4527 amu.
What is the total energy of the photons detected in a period of one hour If a radiation detector is capturing 8 X 10^7 photons per second at this wavelength,?
Determine the hydraulic conductivity and transmissivity of the aquifer and What would Q be if the hydraulic gradient
What is the fundamental difference between a voltaic cell and an electrolytic cell. Can a voltaic cell in which both half-reactions are the same generate a current.
Explain the structure for 4-ethyl-2,3-dimethyl-2-heptene?
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
Write down a net ionic equation for any reaction that forms a precipitate and discover the anions that make gas upon adding of hydrochloric acid
Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound
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