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For which of the following equilibria does Kc correspond to an acid-ionization constant, Ka? NH3(aq) + H3O+(aq) NH4+(aq) + H2O(l) NH4+(aq) + H2O(l) NH3(aq) + H3O+(aq) NH4+(aq) + OH-(aq) NH3(aq) + H2O(l) HF(aq) + OH-(aq) H2O(l) + F-(aq) F-(aq) + H2O(l) HF(aq) + OH-(aq)
sodium azide nan3 is sometimes added to water to kill bacteria. calculate the concentration of all species in a 0.010 m
The mixture was stirred, causing all of the sample to dissolve. The excess HCl in the solution required 94.9 mL of 0.128 M NaOH for complete neutralization in a titration. What was the molecular formula of the white substance
how many grams of Ni(OH)2 are produced from the reaction of 35.0 mL of a 1.75 M NaOH solution ans excess NiCl2? c)what is the molarity of 30.0 mL of a NiCl2 solution if this volume of solution reacts completely with 10.0 mL of a .250 M NaOH soluti..
A student is given an antacid tablet that weighed 5.6832 g. The tablet was crushed and 4.3628 g of he antacid was added to 200 mL fo simulated stomah acid.
The specific heat of a certain type of cooking oil is 1.75 J/(g·°C). How much heat energy is needed to raise the temperature of 2.69 kg of this oil from 23 °C to 191 °C
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
Calculate the potential at a platinum electrode in the titration of 50.0 mL of 0.100 M FeSO4 after addition of 7.00 mL of 0.0500 M KMnO4.
Write a structural formula and a line-angle formula of each isomer of C4H8. Do not include any cyclic structure. Write the IUPAC name of each isomer. Make sure to include the cis- or tran- in the name if applicable.
A solution is prepared by mixing 85.0 mL of 5.00 M HCl and 25.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
Calculate the molarity of a solution made by dissolving 0.650 grams of Na2SO4 in enough water to form exactly 880 mL of solution.
calculate the mass of magnesium that is required to produce 35.8ml of hydrogen gas at 28°c and a barometric pressure of 745 mmHg when collected over water?
This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 16.0 L of H2 gas if the pressure of H2 is 750. torr at ..
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