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The reaction between 0.0356g of magnesium with an excess of HCl was carried out in an ice calorimeter as used in this lab. The volume of water in the calorimeter decreased by 0.16 during the reaction. Calculate the enthalpy of the reaction (in kJ/mol). Show all steps of the calculation
In going from room temperature (25.0 °C) to 10 °C above room temperature, the rate of a reaction doubles. Calculate the activation energy for the reaction.
Select the IR frequency and number of NMR signals that is diagnostic for either isomer a or isomer b. Isomer A: cyclopentanecarboxamide Isomer B: 6-hydroxyhexanenitrile
Express the concentration of a 0.0760 M aqueous solution of fluroide, F-, in mass percentage and in parts per billion
Find a formula for the curvature of the function P= nrt/v-nb - (an^2)/(v^2) ,where n, R, a, b,and T are treated as constants.
A 75 kg person drinks 550 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 20% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
C=3R/2 Express your answer to three significant figures and include the appropriate units. part c Calculate delta U for this process, assuming that . c=3R/2 Express your answer to three significant figures and include the appropriate units part d ..
Which of the following mixtures will be a buffer when dissolved in 1 liter of water?
Which of the following would be expected to be the most stable carcocation. Using good scientific terminology with the aid of structures/equations, clearly explain your answer.
Calculate the energy levels of the pi-network in octatetaene, C8H10, using the particle in the box model. To calculate the box length, assume that the molecule is linear and use the values 135 and 154pm for C--C and C-C bonds.
The distribution coefficient, k = (conc. in hexanes/ conc. in water), between hexanes and water for solute A is 7.5 . What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction.
In places where meteor impacts have occurred, such as Meteor Crater, other distinctly different SiO2 minerals occur, such as stishovite and coesite.
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
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