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Q. Determine the mass in gms for pure Ag sample that loses 2.88kJ if its temperature drops from 143 degree celsius to 28 degree celsius.?
Q. consider this chemical reaction ΔH = - 126 kJ mol-1, ΔS = 84 J K-1 mol-1 and find the temperature at which the reaction becomes spontaneous also consider the second reaction ΔH = 11.7 kJ mol-1, ΔS = 105 J K-1 mol-1 and find out temperature at which the reaction becomes spontaneous?
Using a sample of 0.385 g of Alka-Seltzer, the mass of Carbon dioxide is found to be 0.122 gram. Compute and enter response (in numerical value only) to three significant figures.
Use a drawing program to draw a beaker.
A sample of 2.376 g ether (The compound known as diethyl ether [(C2H5)2O], commonly referred to as ether, contains carbon, hydrogen, and oxygen) was combusted in an oxygen rich environment to produce 2.887 g of H2O (g) and 5.643 g of CO2 (g).
calculate how many mgs of Ca2+ are present in 12.0mL of blood and Determine the percent yield 5.04 grams of H2
What is the importance of chemistry to agriculture, Write summary of total one page and include references as well.
Calculate what the limiting reactant is in the reaction between copper (II) oxide and hydrochloric acid
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
Calculate the quantity of NH3 is produced upon reaction of 4.0 moles of water and 65.0 g of CaCN2.
What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?
Find the volume of a molar solution and What volume of a 2.00 molar solution of sulfuric acid, H 2 SO 4 , is required to react with 250.0g of magnesium carbonate, MgCO 3 , according to the following equation?
Determine the partial pressure of each gas in a mixture of gases using Dalton's law of partial pressures
How you will protect an underground pipe line from corrosion and what are biodegradable polymers or what are conducting polymers
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