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Two reactions with different activation energies have the same rate at room temperature. Which statement correctly describes the rates of these two reactions at the same, higher temperature?
A) The reaction with the larger Ea will be faster.
B) The reaction with the smaller Ea will be faster.
C) The two reactions will continue to occur at the same rates.
D) A prediction cannot be made without additional information.
calculate the amount of heat transfered when 24.0 g of ch3oh decompose at constant pressure. delta h is 126.4
a 4.22 g sample of cus was added to excess hcl and the resulting h2s was collected over water. what volume of h2s was
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical s..
Acetylcholine is a neurotransmitter and its concentration in the blood is quantitatively determined from the pH changes that accompany its hydrolysis by the enzyme, acetylcholinesterase
The Ksp for silver cyanide is 1.2x10^-8, the Ksp for zinc cyanide is 8.0x10^-12, and the Ksp for aluminum cyanide is 2.3x10^-21. What is the minimum cyanide concentration needed to precipitate each condition
What would happen to the A450 value for a smaple which include : 1mL of 0.0025M Fe(NO3)3 + 1mL of 0.0025M KSCN + 5.0mL of 0.1M HNO3 , if you accidentally added 5 drops of disodium hydrogen phosphate
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
In peptides and proteins (peptides simply being smaller proteins), the amine nitrogens of amino acids are linked to the carboxyl carbons of other amino acids by peptide (aka amide) bonds formed by condensation reactions
Calculate the change in Gibbs free energy for each of the following sets of delta H, delta S and T. Predict whether or not the reaction will be spontaneous at temperature indicated.
Measurements also show that a certain sample of the unknown compound contains 6.9 mol of oxygen and 2.32 of chromium
considering the given thermochemical equation 2nog o2g rarr 2no2g in which ?hdeg is given -114.4 kj then determine
Which is the equivalence-point pH if 25.0 mL HCOOH (1.8 x 10-4) requires 29.80 mL 0.3567 M NaOH to reach the equivalence point?
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