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When zinc chloride (ZnCl2) reacts with NH3 solution, a white crystalline compound Zn(NH3)nCl2 is produced. A student used the procedure in this molecule to determine the mass percent of NH3 in Zn(NH3)nCl2. the student added 25.0 ml of 0.2500 M HCl solution to an aqueous solution containing 0.3145 g of Zn(NH3)nCl2. The excess HCl required 25.60 ml of 0.1000 M NaOH solution for complete titration. Caluclate the mass percent of NH3 in Zn(NH3)nCl2 based on the student's data
The resulting solution is titrated to a starch endpoint with 34.81 mL of the thiosulfate solution. Calculate the concentration of the thiosulfate solution.
Calculate the mass of water produced when 9.11 g of butane reacts with excess oxygen. Express the mass of water numerically in grams.
Compute the initial pressure of the gas in the cylinder. b. Compute how much heat must be added to the gas in the cylinder for the spring to compress by 2cm
heptanol has the formula c7h16o and can be combusted in the presence of oxygen. if 15.0 g of heptanol is combusted in
The inert pair effect is observed for : A) Group IIIA and Group IVA elements B) Group IVA elements C) Group IIIA elements D) group IIA elements E) group IA elements
methanol, CH3OH can be produced through the reaction of CO and H2. if 75.o grams of CO is used and the typical yield is 79.8%, what mass of methanol is likely to be produced.
Attractive intermolecular forces exist between the molecules in the gas. The effect of these attractive intermolecular forces in a real gas is to
Solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction.
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of luminol
If the active site of chymotrypsin excludes water when its substrate binds, how is it possible for a water molecule to participate in the second stage of catalysis
According to the molecular orbital (MO) theory, when atoms bond to form molecules or molecular ions, their electrons are redistributed into molecular orbitals. What is the correct order of the relative energy levels for the molecular orbitals of t..
How many grams of Cl2 can be prepared from the reaction of 8.00g of MnO2 an 25.0 g of HCl according to the following chemical equation? MnO2 + 4HCL --> MnCl2 + Cl2 +2H20
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