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What change will be caused by adding a small amount of NaOH to a solution containing flouride ion and hydrogen flouride?
Calculate the change in temperature for 4.5g of CaCl2 dissolved in 90.0mL of H20. Assume that calorimeter absorbs no heat. (Ccal=0)
if 100% of the NaCl molecules dissociated, the van't Hoff factor i=2 calculate the experimental van't Hoff factor of NaCl from your data. I dissolved 30 g of salt into 100ml of water
Important information about Calculation, A person ate 0.50 pound of cheese (an energy intake of 4000kJ). Suppose that none of the energy was stored in the body
An adiabatic turbine expands steam from 500oC , 3.5 MPa to 200oC and 0.3 MPa. If the turbine generates 750 kW, what is the flow rate of steam through the turbine
Products is second order with a rate constant of 0.469 M-1s-1. If the initial concentration of A is 0.159 M, how many seconds would it take for the concentration of A to decrease to 5.12 * 10-3 mol/L?
the carbacation to produce 2,4,4-trimethyl-2-pentene and 2,4,4-trimethyl-1-pentene. in order to calculate the % yield, could you help with the correct balanced equation for this reaction, as i would need the moles ratio?
graph this phase change,with energy as a function of temperature.Do not assume that the eteam is an ideal gas. ?H fus=334.0 j/g ?H vapeur =2260 j/g Ch2o solid=2.11 j/g.k Ch2o liquid=4.18 j/g.k Ch2o gas=2.08 j/g.k a=5.464l62 bar/mol b=0.03049L/mol
for swimming 1500 m in a long course pool is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.650 miles? (1 mi = 1609 m.)
calculate the amount of energy as heat by the freezing of 13.3 g of a liquid substance. given that the substance has a molar mass of 82.9g/mol and a molar enthalpy of fusion of 4.60 kj/mol.
Calculate the expected theoretical yield of aspirin based on exactly 1 g of salicylic acid and 3.50 mL of acetic anhydride (density = 1.082 g mL-1).
Calculate the pH at the equivalence point in the titration of 68 mL of 0.10 M methylamine (see Table 15.4) with a 0.20 M HCl solution.
Calculate script e° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the reactions. Standard reduction potentials are found in the table
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