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34.5-g sample of an alloy at 93.0 degrees Celsius is placed into 50.0 g of water at 22.0 degrees Celsius in an insulated coffee-cup calorimeter with a heat capacity of 9.2 J/K. If the final temperature of the system is 31.1 degrees Celsius, what is the specific heat capacity of the alloy?
what polymer is made from the monomer vinylidene chloride
liquid water and sealed at 25C and a pressure of 1.00 bar. What is the pressure if the temperature of the system is raised to 60.0C?
how many grams of aspiring were lost in the washing process you used to purify the product, assuming you used 50 mL of water for washing? The solubility of aspiring in water is 0.33 grams per 100 mL at room temperature?
Understand how the ability to form hydrogen bonds gives water cohesiveness and how this property is exploited by living things.
What is the [H30+] and the pH of a benzioc acid-benzoate buffer that consists of 0.17 M C6H5COOH and 0.26 M C6H5COONa? (Ka of benzoic acid = 6.3*10^-5)
what is the desity of Osmium if 50.6 gram occupy 2.23 ml. What is the volume of the same mass of Aluminum if the density if 2.70grams/cm3
Aluminum metal shavings (3.200g) are placed in 60.00 mL of (6.00 M hydrochloric acid. 1.00 L of hydrogen gas is collected in a buret over at 20 degress celsius and 1 atm. P(H2O)=17.5 torr.
The enthalpy of neutralization of HCl with NaOH is -55.8 kJ/mol when very dilute solutions are mixed, but is -58.2 kJ/mol when 2M solutions are mixed, as in this experiment. The reaction is
transferred from an oven (183°C) to 189 g of water at 23.2°C, into which it is immersed. The water and steel together reach a temperature of 27.9°C. What is the mass of the steel in grams
Are the physical and chemical properties of a compound necessarily similar to those of the elements of which it is composed
A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
Starting with a 5-carbon alcohol, a 6-carbon alcohol, and malonic ester, complete the synthesis and name the product(using the Malonic Ester Synthesis)
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