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The Ka of formic acid (HCOOH) is 1.8x10-4. What is the pH of 0.35 M solution of sodium formate (NaHCOO)?
Urea (NH2CONH2) an important nitrogen fertilizer is produced industrially by the reaction 2NH3(g)+CO2(g)--->NH2CONH2(aq) + H2O(l) given that ?G^degree = -13.6KJ, calculate
three portions of the same liquid are mixed in a container that prevents the exchange of heat with the environment.
A titration was performed on 10 ml of unknown weak acid. NaOH was titrated with it. The NaOH concentration was 0.09445. The second equivalence point was at 18.85 and the first at 9.42. Explain what are the pKa values pH and Ka Values
What is the hydronium-ion concentration in a 0.025 M solution of carbonic acid, H2CO3? For carbonic acid, Ka1=4.2 * 10^-7 and Ka2= 4.8 * 10^-11?
The reactant concentration in a first-order reaction was 6.70×10-2 after 25.0 and 3.30×10-3 after 100 . What is the rate constant for this reaction?
What is the enthalpy change when 175 g of C3H8 are burned in excess O2? C3H8(g) + 5 O2(g) ? 3 CO2(g) + 4 H2O(l) ?H° = ?2220 kJ
a student wants to dissolve the maximum amount of caf2 ksp 3.2 10-11 to make 1 liter of aqueous solution. a into
Draw Newman projections along the C3-C4 bond to show the most stable and least stable conformations of 3-ethyl-2,4,4-trimethylheptane.
A steam turbine receives a flow of 10,000 lb of steam per hour and delivers 500 kW in that period. Heat losses from the casing and the turbine bearings may be assumed neglible
When pure sodium is placed in an atmosphere of chlorine gas, the following spontaneous reaction occurs: 2Na(s) + Cl2(g) + 2NaCl(s). Which of the following statements is true about the above reaction
Enzyme can react with only a single substrate. Enzyme has a cofactor that promotes the catalytic activity
Demonstrate fluency in chemical vocabulary and symbolic representation. Use measurable quantities of matter to determine physical and chemical properties.
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