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Question- The rate constant is .430 m-1s-1 at 200c initial concentration of A is .00700M what will be the concentration after 705 Seconds?
Here is the problem which I am struggling on, please help me!
A fellow student is having trouble understanding polar covalent bonds, non-polar covalent bonds, and ionic bonds. Describe how you would help your the fellow student
Identify the compound: molecular mass 113; gives a positive hydroxamate test; IR: 2237, 1733, 1200 cm-1; 1H NMR: ? 1.33 (3H, t, J = 7 Hz), ? 3.45 (2H, s), ? 4.27 (2H, q, J = 7 Hz). Please draw the structure.
Equal molar quantities of two gases, O2 and H2O, are confined in a closed vessel at constant temperature, Which gas, if any, has the greater partial pressure
A hypothetical lake has a surface area of 23 acres and an avgage depth of 20 ft. Recently there was an accident where a truck spilled 9,000 gals of concentrated H2SO4 (18M) directly into the lake.
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively.
Calculate the concentration of bicarbonate ion, HCO3 -, in a 0.010 M H2CO3 solution that has the step wise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
Tris is a commonly used buffer in biochemistry. It works well in the neutral to slightly basic pH range. A working solution of Tris-HCl buffer was made by mixing equal volumes of Tris base solution
In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, (HOCH2)3CNH2, often abbreviated as Tris. At 25 °C, Tris has a pKb of 5.91.
How much heat is evolved in converting 1.00 mol of steam at 145°C to ice at -50.0°C? The heat capacity of steam is 2.01J/g?°C and of ice is 2.09J/g?°C.
A 0.8 g of that compound was vaporized and was found to occupy 700ml at 60C(Temperature) and 740 torr. What is the molecular weight and the molecular formula of the compound
Question- Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. Carbon dioxide is a greenhouse gas, so over-production can have negative effects on the environment.
Presume that the chlorine molecule can be treated as a harmonic oscillator with a force constant of k=329 Nm-1 and utilized the reduced mass for the mass of the oscillator. The mass of a35Cl atom is 34.9688 u and 36.9670 u for37Cl.
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