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A 15.60-mL sample of potassium hydroxide solution is titrated tothe stoichiometric point with 18.00 mL of a 0.292 M solution of HNO3. What is the molarity of the sample of potassium hydroxide?
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is tripled and that of Br- is tripled
To 500 mL of 0.015M NaOH is added 500 mL of 0.013M HCl. What is the resulting pH of the solution. 1) 8 2) 11 3) 3 4)12 5) 9 The answer: 11 4. When delta G is less than zero for a reaction, the value of K is : Greater than one Why is it so
To better understand why, scientists synthesized artificial protein mimics that were linked by ester bonds instead of the amide functionality ( the R-group side chains all remained the same). They found that these mimics did not form highly organi..
If a 0.568m soloution had a 3.75 C difference in its freezing point from the pure solvent, what is the freezing point depression constant Kfp for the solvent
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases.
what is the percent h2so4 for a solution consisting of 4.62 equivalencies of h2so4 mixed
Compute the equilibrium concentration of La3+ in the resulting solution. Ignore activity coefficients. Ksp = 1.0 x 10-11
Magnesium hydroxide (Mg(OH)2) reacts with hydrochloric acid to produce magnesium chloride and water. How many liters of 0.8 M HCl react with 0.25 grams of magnesium hydroxide
Draw both conformers and suggest which of them is stable. Suggest a reason why the unstable conformer is unstable.
The reaction between sodium metal and chlorine gas produces 822 kJ of heat energy for chlorine molecule consumed 2 Na (s) + Cl2 (g) ---> 2 NaCl (s) How much heat is released if 12.8 moles of NaCl are produced
When butane gas, C4H10, burns in oxygen gas, O2, to form carbon dioxide gas, CO2, and gaseous water, 2845 kJ of thermal energy is evolved per mole of butane burned.
how long was the flight? How far did it travel in the horizontal direction before landing? What was the highest altitude it reached? Neglecting air friction at what angle should the projectile have been fired to maximize the horizontal range.
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