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1.) How much heat (in joules) is used to heat a 90.93 gram sample of iron from 6.34 degrees Celcius to 100.00 degrees Celcius if the specific heat of Fe is 0.450 J/g°C?
2.) You order a 16 oz glass of tea (where the mass of water is 474 grams) from a local restaurant. The tea is freshly brewed and has an initial temperature of 24.01 °C. You add ice to cool it. If the heat of fusion of ice is 6.020 kJ/mol and each ice cube contains exactly 1 mol of water (assume the ice does not add anymore volume), how many ice cubes are necessary to cool the tea to 4.06 °C? The specific heat of the "tea" is 4.184 J/g°C.
At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings?
Predict the products for the following set of reactants- PCl3(l) + H2O(l) ? (You are just asked to determine the products and not necessarily balance the equation)
The amino acids found in proteins are all alpha-amino acids, but not all amino acids are alpha-amino acids. Suppose that a particular amino acid has alpha -, beta-, and gamma isomers. Which of the following will be the strongest acid
I do not understand how to draw the skeletal structure of (CH3)3CCH2CHC(CH3)2 and (CH3)2CHCHCHC(CH3)3
The solution was cooled in an ice-water bath for 10 minutes and pure crystals were obtained. The crystals were filtered on a Hirsch funnel and rinsed with about 0.5 mL of ice-cold ethanol. After drying, the weight of the crystals was found to be 5..
A sample of metal is placed in a flask. water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of water, flask and metal is 268.5 g. if the mass is 139.3 and the density of water is 1000 g/ml, what is the densi..
The solubility of nitrogen in water exposed to the atmosphere, where the partial pressure of nitrogen is 593 mm, is 5.3 × 10-4 M. At the same temperature, what would be the solubility of pure nitrogen, at a pressure of 760 mm?
Problem- After 75.0 min, 39.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
Question- The highest possible oxidation state for halogens is +7 and the lowest possible is -1. Which of the following could not disproportionate
The equilibrium constant, Kc, for the following reaction is 1.29E-2 at 600 K: COCl2(g) CO(g) + Cl2(g)
Nickel crystallizes in face center cubic unit cell with an edge of 375pm. Determine the density of nickel in g/cm
a mixture consisting of 0.250 m n2nbspand 0.500 mh2nbspin a reaction vessel at certain temperature reactsand reaches
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