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To titrate a 5.00 mL sample of a saturated aqueous solution of sodium oxalate, it requires 25.31 mL of 0.02233 M potassium permanganate. How many grams of sodium oxalate would be present in 250.0 mL of the saturated solution? The net ionic equation of this redox reaction is given below. 5 C2O42-(aq) 2 MnO4-(aq) H (aq) -> 2 Mn2 (aq) 8 H2O(l) 10 CO2(g)
If the silver -silver chloride electrode is replaced with a saturated calomel electrode, what is the new cell voltage?
The enthalpy change for the reaction below at 25oC is -1,850 kJ (per mole of C9H20). What is the internal energy change for the reaction at 25oC
Hydrochloric acid (HCl) reacts with sodium carbonate (Na_2CO_3), forming sodium chloride (NaCl), water (H_2O), and carbon dioxide (CO_2). This equation is balanced as written
Predict the magnetic susceptibilities (para- or diamagnetic) and determine the number of unpaired electrons of each of the following complexes (consider C2O42- and H2O as strong field ligands which cause a large splitting of the d-orbitals).
Determine the PH of each of the following a) 10mL of .2M Acetic acid and 1.00mL of .1M sodium hydroxide, and 9.0 mL of distilled water
Calculate the amount of heat energy required to convert 55.0 g of water at 62.5 degrees Celsius to steam at 124.0 degrees Celsius
Give explanation why it is not practical to evaluate the solubility of the two salts AX and BY2, by simply comparing the solubility product constants?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
if 77.0 mL of .150 M HCl (aq) is needed to neutralize all the NH3(g) from a 2.25 gram sample of organic material, calculate the mass percentage of nitroge in the sample.
A sweet beverage drink contains sugar labeled as having 95 Calories (95kcal) of energy. how many kilojoules are there in 95.0 Calories?
A water treatment plant has a flowrate of 6,000 m3/d. Determine the following (assume filtration rate is 60 m3/d-m2): a. Total filter area
the property of mercury that allows it to form an amalgam with gold has been used in thee mining industry for hundred of years. during the boom in california in the 19th century
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