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The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of 58.1 grams in one mole. How many carbon atoms are in 3.00 g of butane?
The freezing point of mercury is -38.8 C . What quantity of energy, in joules, is released to the surroundings if 1.00 mL of mercury is cooled from 23.0 C to -38.8 C and then frozen to a solid
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr.
A solution containing 100g of unknown liquid and 900g water has a freezing point of -3.33C. Given Kf=1.86C/m for water, determine the molecular weight of the unknown liquid and express your answer in g/mol.
Calculate the solubility (in grams per 1.00x10^2 mL of solution) of magnesium hydroxide in a solution buffered at pH=12 and how does this compare to Mg(OH)2 in pure water (S1/S)
Tungsten trioxide (WO3) has a rich yellow color and is often used as a pigment in ceramics and paints. In order to test a ceramic vase for its WO3 content
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
Calculate the standard reduction potential for the X half-reaction. The standard reduction potential of the copper half-reaction is 0.52 V. (Hint, write the half-reactions and the overall chemical equation for the spontaneous reaction.)
What is uncertainly in meters in the position of a helium atom if the uncertainty in its velocity is 1%
Carvone is the major constituent of spearmint oil. What products would you expect from the reaction of carvone with the following reagents
The solubility of calcium carbonate in water is 14.5 mg per liter. Calculate the molarity of a saturated solution.
Antacid tablets are made from a variety of compounds. Sodium bicarbonate, magnesium hydroxide and calcium carbonate to name a few.
1. A rubber is subjected to a shear stress such that λx=λ, λy=1. Obtain an expression relating the shear stress, σ, and the shear strain, γ, assuming γ=λ-1/λ. Comment on the difference between this stress/strain relationship and the one for simple el..
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