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Zn + 2HCl --> ZnCl2 + H2
How many mols of hydrogen are produced from the reaction of .558 mols of zinc with an excess of hydrochloric acid?
The constant pressure molar heat capacities of ice and water are 37.7 J/ mol K and 75.3 J/ mol K respectively. The molar enthalpy of fusion of ice is 6.01 kJ/ mol at 0.00° C. The system consists of a 105 gram sample of H2O, initially in the form o..
Given the information below, what is the value of the unknown equilibrium constant?
Consider the titration of a 25.0 mL sample of .125M RbOH with .105M HCl. Find the initial pH.
A 141-mL sample of gas is collected over water at 22°C and 753 torr. What is the volume of the dry gas at STP?
What is the number of chlorine atoms are in 5.0 g chloral hydrate?
As of 2007 world record for swimming 1500.0 m in a long course pool is 14 min 34.56 s. if we follow this rate then calculate how many seconds would be taken by a man to swim 0.850 miles?
What is the coordination number for each of the following complexes? A. [Co(NH3)4(H2O)2]^3+ B. [Cr(EDTA)]^-
what volume of 0.366M Ni(NO3)2 is required to completely react with 55.8 ml of 0.500M Na2CO3.
Calcium carbide reacts with water to form acetylene and calcium hydroxide. From the following enthalpy data calculate Delta Hf for CaC2
After equilibrium was established, which of the ions listed below was present in the greatest concentration?A) H2C6H5O7^-
disubstituted alkene was formed in which the olefinic protons exhibited a vicinal coupling of 9.0Hz in the H NMR. What is the stereochemistry
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
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