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A titration was performed at 25 degrees C and the Ksp of a slighlty soluble salt was determined to be 1.5×10-4. Calculate the standard Gibbs Free Energy of this salt. R = 8.314 J/mol-K
The sample is placed in a drying dish (weight = 0.5000 g before the sample is added), and then placed in an oven at 104°C until all the moisture is evaporated.
sketch the following molecules3-cyclohexenone 4-ethyl 225-trimethyl 3-hexanone ethyl butyrate pentanoic acid 2-chloro
Express the concentration of a 0.0460 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00g/mL.
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures, including hydrogen atoms,
Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75.
Use Hess' Law to show how the titration of acetic acid with sodium hydroxide can be expressed as the combination of two reactions: the acetic acid reacting with water, and the sodium hydroxide reacting with hydronium ion.
Classify these 3 elements by whether they get oxidized or reduced in the reactions shown here: Calcium Oxygen Flourine Lithium 2Ca (s) + O2 (g)= 2CaO (s) F2 (g)+2Li (s) = 2LiF (s)
Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water (H2O), and carbon dioxide (CO2). This equation is balanced as written: 2HCl(aq)+Na2Co3(aq) --- 2NaCl(aq)+H2O(I)+CO2(g)
According to the data, what is the value of delta H for the reaction.
If 2.50L of 1.25M BaCl2 added to 3.50L of 2.45 M NaCl, what is molarity of Chloride ions in final solution
At 25 °C, water has an equilibrium vapor pressure of 23.8 mm Hg. If 2.500 g of water is sealed in an evacuated 10.0-L flask and heated to 25 °C, what mass of water will evaporate?
phosphorus has the molecular formula P4 and sulfur has the molecular formula S8. How many grams of phosphorus contain the same number of molecules as 6.4 g of sulfur.
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