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what are the NGSS Crosscutting concepts between ionic/covalent compounds?
you have 500 ml of a buffer solution containing .2 m ch3cooh and .3 m ch3coona. what will the ph of this solution be
Diagram a substitution (oxidation) reaction of ammonia. You may use any alkyl group as a reactant with ammonia. Name the product.
Determine how many grams of steam at temperature T steam = 100 degrees is required to prepare 1 gram of water at STP from 1 gram of ice at -20 degrees Celsius. Obtain general equation and assume you know all the necessary thermodynamic parameters.
The cell SCE||CdA2(sat'd), A-(0.0250 M)|Cd has a possible of -0.721 V. Compute the solubility product of CdA2.
Explain how Much of the stomach acid had been neutralized in the 25.00 ml sample which was titrated. Define how much stomach acid was neutralized by the 4.3629 g tablet
Copper metal is dipped into a 0.01M silver nitrate solution. Calculate the concentration of silver ions in the final equilibrium solution.
Describe in detail(ex:individual resins used, etc) the purification of a protein from bovine live that has the following characteristics: Molecular weight of 86,500, pI= 8 and precipitates out of solution at 30% ammonium sulfate
110 mL of H_2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.0 degrees C.
What is the wave particle duality? Explain dual nature of electron? Give the significance of DeBroglie's equation and Explain the concept of vapour pressure. Give reason- Liquid ammonia bottle is cooled before opening.
If a Nicotinic acid, HC6H4NO2 is a weak monoprotic acid. A 5.7x10-2 M nicotinic acid is 1.6% ionized. Explain what is the Ka for this acid
Calculate the theoretical yelled percentage of a reaction between sodium and water
A gas expands and does P-V work on the surroundings equal to 343 J. At the same time, it absorbs 159 J of heat from the surroundings. Calculate the change in energy of the gas.
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