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State a mechanism for the formation of 1, 3-butadiene from 3-sulfolene or cyclopentadiene from dicyclopentadiene
Calcite (CaCO3) has two types of bond. (covalent and ionic) a) Demonstrate which is the stronger by calculating the degree of ionic character of each bond
Find the molcular heat capacity in units. Does the law hold up? Can you distinguish a metallic element from a nonmetal this way. Metalloids
a 1.80 m solution of 56 ml is diluted to a volume of 218 milliliters a portion of that solution of 109 milliliters is
An empty vial weights 31.45 g. If the vial weighs 179.56 g when filled with liquid mercury (d=13.53g/cm3), what is its volume
The activation energy for the following first-order reaction is 318 kJ/mol. N2O5(g)-->2NO2(g)+(1/2) O2(g). The value of the rate constant (k) is 6.65x10^-5 s^-1 at 84 degrees C. What is the value of k at 49 degrees C. (R=8.314 J/mol K)?
Reactant: water and 2.51 g of SbCl3 Product: 1.906 g of a solid of antimony, oxygen and chlorine, and 0.802 g of a single gas that is 97.20% chlorine and 2.75% hydrogen What is the empirical formula of the gas and the solid
Explain Molecular and Empirical Formulas, Ibuprofen, a headache remedy, contains 75.69% C, 8.80% H and 15.51% O by mass, and has a molar mass of 206g/mol.
Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron.
The specific heat of iron metal is 0.450 J/g-K. How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 Celcius to 88.5 Celcius
The gas is collected over water . If 156 mL of gas is collected at 19oC and 769 mmHg total pressure, what is the mass of hydrogen collected?
The reaction of nickel with concentrated nitric acid, the products are nickel III nitrate, water and nitrogen monoxide, sometimes called nitric oxide. If 250 ml of nitric oxide were collected over mercury at 42C and under a pressure of 745 mm of m..
The second virial coefficient of methane can be approximated by the empirical equation , where a = -0.1993 bar-1, b = 0.2002 bar-1, and c = 1131 K2 with 300 K
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