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Chemistry Lab Report Help!!! We did a lab on equilibrium and le chatelier's principle. On one portion, there was a copper complex, and we had to add different components to a solution and write down the changes that took place. For the copper complex section, there was CuSO4 (clear blue), then NH3 was added (cloudy teal), and the solutions were split into two. In solution a) the NH3 was left alone, and in b) excess NH3 was added (dark blue). Then, HCl was added to each solution (visible gas was released from both and both became clear blue in color). Here are the questions: Write the equilibrium equation for the formation of the tetraammine copper(II) complex from Cu^2+ and ammonia. For the above observations, explain your observations of color changes and/or solid present. Include the direction of any equilibrium shift and why it is shifted. When a competing equilibrium causes the shift, include the appropriate equation. I don't even know where to start.
A girl is celebrating her seventh birthday. Each guest is served one large slice of chocolate cake, a hamburger, French fries, and some oranges. Identify the food groups mentioned above.
At a certain temperature* (probably not 25 ºC), the solubility of silver sulfate, Ag2SO4, is 0.023 mol/L. Calculate its solubility product constant for this temperature.
A Sprinter set a high school record in track and field, running 200.0 m in 21.4s. What is the average speed of the sprinter in kilometers per hour? Express your answer numerically in kilometers per hour.
Calculate the radiation dosage (in grays) for an 57-kg person that is exposed for 3.0 seconds to a 3.0 Ci source of beta radiation.
The formula of a complex formed by a reaction such as M + nX = MXn can be determined by the method of continuous variations. The absorbances of a series of solutions of varying composition are measured at the wavelength at which the complex shows ..
the initial dose of a drug ina animal was 25.0mg/kg doy weight. After 2.0 hours this concentration had dropped to 15.0mg/kg body weight. if the drug is eliminated metabolically by the first order process
The product is collected over water at 25.0 . How much time is required to produce 146.0 of the products at a barometric pressure of 753.7. The vapor pressure of water at this temperature is 23.8.
50.0 g of N2O3 is decomposed according to the following reaction 2N2O3 --> 2 N2 + 3O2 . How many moles and how many liters of nitrogen are produced at 300 degrees Celsius and a pressure of 1350 torr?
they are stable molecules with normal bonds and are frequently isolated. d. all reactions involve reaction intermediates, but not all have activated complexes. e. they are intermediate structures which have characteristics of both reactants and pr..
What is the wavelength in micrometers of a photon emitted from a Hydrogen electron relaxing from the
Q 3: The salt NaBrO(3) oxides Sn^2+ to SnCl(6)^2- in the presence of hydrochloric acid according to the equation
A 0.150 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.12° in a 1-dm sample container. The molar mass of the compound is 135.0 g/mol. (a)What is specific rotation of D
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