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Why did the grape juice change color when an acid or base was added? 5. You added a base, sodium bicarbonate, to test tube 1 that contained citric acid and an acid to test tube 2 that contained base. Why did the grape juice return to its original color? 6. Name 2 acids and 2 bases you often use.
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.738 V. If the silver-silver chloride electrode is replaced with a saturated calome..
An underground reservoir contains natural gas at a pressure of 425 kPa and a temperature of 15 °C. If the volume of the reservoir is 1.3 x 104 kL
A 0.15 M solution of chloroacetic acid has a pH of 1.86. What is the value of Ka for this acid?
1. H2O2(aq) acting as an oxidizing agent in acidic solution. Write the balanced half reaction?
c3h8g 5o2g-gt 3co2g 4h2ol ho -2220 kjmolpropane is often used for gas grills and is typically purchased by filling a
The effective nuclear charge is approximated as the total nuclear charge minus the number of core electrons. Thus, effectively, core electrons decrease the nuclear charge felt by the valence electrons because they are between the nucleus and the v..
At 40oC, Kc=0.0303 for the reaction below. H2 + Cl2 --> 2 HCl In an experiment carried out at 40oC, the initial concentrations were [H2]=[Cl2]=[HCl]=2.25 mol/L. What is the equilibrium concentration of HCl
However, if you treat formaldehyde (CH2O) with potassium cyanide in water, you will not produce the cyanohydrin. You may even produce C3H6O3 (i.e., dihydroxyacetone and glyceraldehyde). Explain this either in words or reactions.
A bag of potato chips contains 580 mL of air at 25°C and a pressure of 755 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain
Write balanced molecular equations, complete ionic equations, and net ionic equations for the following reactions. Write "NR" if there is no reaction. All reactants are aqueous solutions.
Twenty grams of a solute are added to 100g of water at 25C. the vapor pressure of pure water is 23.76 mmHg, the vapor pressure of the solution is 22.41 torr.
If the gas was not pure butane but 10 mole percent propane and 90 mole percent butane then determine how would the MW value be affected?
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