Enthalpy of vaporization of water
After swimming in a pool or lake, the air feels cool because heat is required to evaporate the water from our skin. How much heat is required to evaporate 20.3 g of water? The enthalpy of vaporization of water is 44.0 kJ/mol.
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100.0 mL solution that was made by adding 10.26 grams of sucrose (C12H22O11) to 95.0 mL of pure water (density of pure water is 1.00g/mL). Calculate the osmotic pressure exerted by the sucrose solution at 25 degrees C.
Nickel has a face-centered unit cell with all atoms at lattice points and an edge length of 352.4 pm. The density of metallic nickel is 8.91 g/cm3. What is the mass of a nickel atom?
Shelby and Mortonson formed a partnership with capital contributions of $300,000 and $400,000, respectively. Their partnership agreement calls for Shelby to receive a $60,00.
Nguyen invested $100,000 and Hansen invested $200,000 in a partnership. They agreed to share incomes and losses by allowing a $60,000 pery year salary allowance to Nguyen and a 40,000.
During June, 28,000 units of direct materials are purchased at a cost of $4.70 per unit, and 28,000 units of direct materials are used to produce 9,000 units of Product B.
30 g of steam at 100EC condenses and drops to a temperature of 70EC. How much energy is needed to cool the liquid water at 100EC to the final temperature of 70EC?
The partnership agree,ent for Smith Wesson & Davis, a general partnership, provided that profits be shared between the partners in the ratio of their financial contributions to the partnership.
Question: Suppose that 450.9 J of heat energy is required to completely vaporize 3.1 g of a pure liquid. If the molar mass of the liquid is 54.05 g/mol, what is the molar enthalpy of vaporization of the liquid?
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