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A 0.0539g sample of iron sulfate was dissolved in dilute HCL and treated with 10% BaCl2 solution. The BaSO4 precipitate weighed 0.0828g. Determine the formula of this sulfate of iron.
How many milliliters of 0.110 are needed to react completely with 25.0 of 0.160 ? How many grams of will be formed?
Why acetone has significantly high refractive index when a mixture of acetone and water is distilled
Write the balanced chemical equation that corresponds to this reaction. B) If 15g cyclohexane is burned in a calorimeter with a heat capacity of 230kJ/K, what temperature change do you expect
Explain Oxidation of Elements and Their Reactions, Which element is oxidized and which element is reduced in each of the following reactions?
Copper is electroplated from CuSO4 solution. A constant current of 10.0 amps is applied by an external power supply for exactly 75.0 minutes. How many grams of copper can be plated out during this time interval
Ammonia reacts with diatomic oxygen to form nitric oxide and watervapor. When 40.0g of ammonia and 50.0 g of oxygen are mixed and allowed to react, which is the limiting reagant? 4NH3 +5O2--> 4NO + 6H2O
At a given temperature, the equlilibruin constant for the system studied in an experiement is 1.40x10^2. Suppose 100.0 ml of 2.00 x 10^-3 M KSCN was mixed with 100.0 ml of 2.00 x 10^-3 M Fe(NO3)3
What is the pH when 25mL of .20M CH_3COOH has been titrated with 35mL of .10M NaOH
How much energy (in kilojoules) is released when 15.9g of steam at 129.5C is condensed to give liquid water at 68.5C? The heat of vaporization of liquid water is 40.67 KJ/mol , and the molar heat capacity is 75.3 J/(Kmol) for the liquid and 33.6 J..
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
Alcohols can be oxidized by chromic acid derivatives. One such reagent is pyridinium chlorochromate, (C5H5NH )(ClCrO3-), commonly known as PCC
What is the identity of the unknown, Dinitrogenmonoxide (N2O), laughing gas, is used by dentists as an anesthetic. If 2.86 molof gas occupies a 20.0 L tank at 23°C, what is the pressure (mmHg) in the tank in the dentist office?
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