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The heat fusion o water is 6.01kJ/mol. The heat capacity of liquid water is 75.Jmol-1k-1. The conversion of 50.0 g of ice at 0.00 degree celsius to liquid water at 22 degree celsius requires______kJ of heat.
The oxygen generated from the decomposition of the potassium chlorate converted some of the iron to iron(III) oxide. If the combined mass of iron and iron(III) oxide was 17.9 grams, calculate the mass of iron(III) oxide and the mass of the potassi..
Using the Boltzmann distribution, calculate the ratio of electrons at the bottom of the conduction band to those at the top of the valence band for pure Si at 300.K. The Si band gap is 1.1 eV. The answer to this question has to equal 3.35 x 10-18.
what radial position is the velocity of an individual fluid element equal to the average velocity of the fluid? (r= r subscript c and 0
What volume, in Ml of a 1.20 M HCL solution must be diluted in order to prepare 1.00 L of 0.0150 M HCL
how many milliliters of hydrogen would be collected at a pressure of 754 torr and 22 C in a reaction between 0.315 grams of Al and an excess of HCl
Draw a flow sheet to show how you would separate the componenets of a mixture containing an acid substance,toluic acid, a basic substance, p-bromo-aniline and anthracene, a nuteral substance.
The total concentration of enzyme in the reaction was 10 mmol/mL. What is thekcat (K2) of this reaction?
What mass of potassium chromate is needed to add to exactly 500g of water to produce a solution with vapor pressure of 21.50 torr at 24 C
When 6.6 g solid NaOH is dissolved in 30.0 g of water in a coffee cup calorimeter, the temperature rises from 25.5 to 36.1. How much heat is produced by the dissolution process? the specific heat is 4.184
From a consideration of the Lewis structure of the thiocyanate ion, SCN-, in which carbon has a double bond with both the sulfur and nitrogen atoms, the formal charges on the sulfur, carbon, and nitrogen atoms are, respectively,
A 500 ml sodium iodide solution was prepared by dissolving 30.7 grams of solid NaI in water. chlorine gas was bubbled through a 100 ml sample of this solution until the reaction was complete. how many grams of molecular iodine were produced
what is the density of a block of marble that occupies 285 centimeters cubed and has a mass of 636 grams? answer in units of g/centimeters cubed.
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