Estimating the overall order of the reaction
A reaction has a rate law, rate = k[A][B]2. What is the overall order of the reaction?
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Which compound would have the lowest boiling point?
The volume of dry gaseous HBr at STP that can be obtained from the reaction of 81.6 grams of PBr3 with excess water is: PBr3(1) + 3H2O(1) ------> H3PO3(1) + 3HBr(g)
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3.
how would you make 100ml of a buffer with a pH =4.25, starting with 0.25 M acetic acid and 0.25M sodium acetate
36 grams of an impure zinc sample are reacted with excess hydrochloric acid and 10 L of hydrogen gas are collected at STP, what is the percentage of PURITY of zinc sample?
when 20.6gm of methanol and 39.7gm of chlorine under go reaction that has 73.3% yield, what mass of chlormethene CH3Cl forms
A 125-g metal block at a temperature of 93.2 °C was immersed in 100. g of water at 18.3 °C. Given the specific heat of the metal (s= 0.900 J/g·°C), find the final temperature of the block and the water.
Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate the mass (in grams) of silver the would be deposited by a battery that delivers 1.25 A/hr of charge.
A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL. After water vapor is removed
Choose the correct answer of the following, explain why it is true, and explain why the other choices are untrue: (A) high pE is associated with species such as CH4, NH4+
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