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If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
The addition of H2 to double bonds is an important reaction used in the preparation of margarine from vegetable oils. If 50.0 mL of H2 and 50.0 mL of ethylene (C2H4)are allowed to react at 1.5 atm, the product ethane (C2H6) has a volume of 50.0 mL..
A patient needs 0.004g of a sulfa drug. There are 5.00mg tablets in stock. How many tablets should be given.
LiI has a lattice E of -7.3x10^2 kJ/mol and a heat of hydration of -793kJ/mol. Heat of solution is -60kJ/mol. Determine how much heat is evolved
Determine the molecular weight of a compound given the gas phase data: mass of 11.8 g, temperature of 39.1 C, pressure of 630 torr, volume of 1.31 L.
Your metropolitan area has been warned by the EPA to lower sulfur dioxide and nitrogen oxide emissions or it will lose substantial federal funding. One citizen's group calls for conservation as a means of drastically reducing electricity consumption.
Consider two DNA molecules: one 400 base pairs long, the other 800 base pairs long. Assuming that each is a rigid rod of diameter 25 Å, with a length of 3.4 Å per base pai.
When NH3 is prepared from 28 g N2 and excess H2 the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, only 30. g is produced.
How many grams of sulfur (S) are needed to react completely with 355g of mercury (Hg) to form HgS?
Determine the heat of combustion per gram of octane and the heat of combustion per mole of octane?
A rolled oat's piece has a thickness =1.2 mm. The density= 600 kg/m3, specific heat capacity=2200 J/kgK and thermal conductivity= 0.4 W/mK,The product is to be baked from twenty degree celsius.
How many grams of water are required to dissolve 24g od KNO3 at 100 degrees celsius?
A gas occupying a volume of 246 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm.
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