Calculate the heat change
Calculate the heat change at 100C in each of the following problems. Indicate whether heat was absorbed or released.
a. calories to condense 10.0 g of steam b. kilocalories to condense 75g of steam c. kilocalories to vaporize 44 g of water.
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A student was as ked to determine the molecular weight of a weak monoprotic dry acid (HX). She was provided the following laboratory equipment.
The hydrogen gas generated is collected over water at 25 C. The volume of the gas is 246 mL measured 1.00 atm. Calculate the number of grams of sodium used in the reaction.
How does your analysis of value of marginal product (VMP) change if the employer is a monopolist producer of its output but a price-taker in the labor market?
What is the percent by mass of NaHCO3 in a solution containing 30 g of NaHCO3 dissolved in 500 mL of H2O?
What is the boiling point of the solution in which you are going to cook spaghetti if it contains 58.0 g of NaCl dissolved in 1.20 L of water?
Say you are the manager of a perfectly competitive firm selling a product. Your business is making a loss because total revenue is less than total costs. What would you do--shut down or continue to operate?
Solid silicon and solid magnesium chloride form when silicon tetrachloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation. Include all of the appropriate notations .
A small bubble rises from the botton of a lake, where the temperature and pressure are 4°C and 3.0 atm, to the water's surface, where the temperature is 25°C and pressure is 0.95 atm. Calculate the final volume of the bubble if its initial volume was
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