Calculate the change in energy of the gas
A gas expands and does P-V work on the surroundings equal to 351 J. At the same time, it absorbs 175 J of heat from the surroundings. calculate the change in energy of the gas.
Expected delivery within 24 Hoursrs
If 69.5kJ of heat is applied to a 1012g block of metal, the temperature of the metal increases by 11.4 degrees celcius. Calculate the specific heat capacity of the metal in J/g degrees celcius.
Ethylene diamine tetra-acetic acid (EDTA) is awater-soluble compound that readily combines with metals, such ascalcium, magnesium, and iron. The molecular formula for EDTA isC10N2O8H16. Assume one EDTA molecule complexes(associates with) one metal
Consider the following observation: A rubber band isstretched under tension (at least 0.5 cm wide) and then touched tothe upper lip and found to be warm.
A photon of ultraviolet (UV) light possesses enough energy tomutate a strand of human DNA. What is the energy of a single UV photon having a wavelength of 24nm?
A 2.56 g sample of anthracene, C14H10, was burned to heat an aluminum calorimeter (mass=948g). The calorimeter contained 1.5 L of water with an initial temp of 20.5 C and a final temperature of 34.3 C. Calculate the molar heat of combustion of ant
A solution of H2SO4 with unknownconcentration was titrated with the standard base with .0233Molarity. A volume of 5.03mL of the acid solution required 12.07mLof the standard base to reach the end point using phenolphthaleinindicatior.
Copper in salt water near the discharge of a sewage treatment plantis determined by first seperating and concentrating it by solventextraction of its dithizone chelate at pH 3 into methyl chlorideand then evaporating the solvent.
A 100.0 mL sample of a 0.200 molar aqueous solution of K2CrO4 was added to 100.0 mL of a 0.100 molar aqueous solution of BaCl2. The mixture was stirred and the precipitate (BaCrO4) was collected, dried carefully, and weighed.
Determine the total concentration (in mol/L) of Cl- ions in a solution formed from the reaction of 500mL of 1.0M barium hydroxide (Ba(OH)2 with 248mL of 1.96M hydrochloric acid (HCl).
Ascorbic acid (vitamin C, C6H8O6)is a water-soluble vitamin. A solution containing 81.0g of ascorbicacid dissolved in 230g of water has a density of 1.22g/mL at55oC. What is the mass percentage, the mole fraction,molality, and molarity in this so
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!