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How much thermal energy is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water increases from 19.50 degrees C to 38.83 degrees C? The calorimeter has a heat capacity of 650 J/degrees C and the calorimeter contains 520. g of water.
Calculate the volume in liters of a 0.00360 mol/L calcium sulfate that contains 75.0g of calcium sulfate (CaSO4)
How many unpaired electrons in the F22+ ion are based on molecular orbital theory? The order of the molecular orbitals are (σ2s)(σ*2s)(σ2p)(π2p)(π*2p)(σ*2p).
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temperature of 112 degrees C. What is the volume of gas, in milliliters
The rate constant for a certain reaction is = 2.90×10?3 . If the initial reactant concentration was 0.500, what will the concentration be after 19.0 minutes?
sample of KHP requires 19.27mL of NaOH to reach the end point. What is the concentration of NaOH?
Based on the force vs atomic spacing and energy vs atomic distance curves explain why some materials have high strength and high melting temperatures
Application of the concepts of VSEPR theory leads us to conclude that the shape of the SO3 molecule is
calculate the mass of water that must be added to 0.45 mol of glucose to make a solution of 15.0 percent by mass. the molar mass of glucose is 180 g/mol
A reaction is preformed in aqueous solution, and the temperature of the solution increases by 15.78 degrees celcius. Is the reaction exothermic or endothermic?
What is the molarity of a sulfuric acid solution if 40.2 mL of this solution is required to titrate 6.50 grams of sodium hydrogen carbonate?
How many grams of magnesium chloride are needed to react completely with 66.0 mL of 0.189 M NaOH solution
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