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A reaction with the activation energy Ea= 166.00 kJ/mol, has a rate constant k = 3.900 x 102 at 329.00 Kelvin. Determine the rate constant when the temperature is changed to 693.00 Kelvin. R = 8.314 J K-1mol-1
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
Describe and explain four ways in which and industrial chemist could increase the yield of nitrous oxide.
If a certian mixture of olive oil and vinegarhas a total mass of 397.8g and a total volume of 4228 cm^3, what is the volume of oil and what is the volume of vinegar in the mixture?
How many moles of nitrogen are in an "empty" two-liter cola bottle at atmospheric pressure and room temperature (\rm 25^{\circ}C)? Assume ideal behavior.
DNA Coiling and Topoisomerase, draw a circular DNA molecule that contains 3 negative supercoils. In this DNA molecule, make L = 250 and T = 253. Don't draw the details here i.e., all 250 of the strand passages around each other.
When elemental carbon is burned in the open atmosphere, with plenty of oxygen gas present, the product is carbon dioxide.
Find the temperature of 3 grams of chlorine gas in a 1.5 L container with 801 mmHg of pressure.
If both enzymes catalyze their reaction with similar rates, explain why the hydrolysis of the starch molecule is accelerated when both enzymes act together.
Consider the lewis structure for the polyatomic oxyanion shown below, where X is the element from the 3rd period (Na- Ar). By changing the overall charge
A 100 mL buffer solution initially has 1.00 M HClO (Ka = 3.0 × 10-8) and 0.75 M NaClO. What is the new pH when this 100 mL of 0.10 M NaOH is added to the initial buffer solution?
Compound A, optically active, with a formula of C6H14O reacts with Na2Cr2O7 in H2SO4 forms a new compound B with formula C6H12O and is optically active
How many moles of HIO3 are produced when 1.29 grams of ICl3 and 7.81 grams of H2O react
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