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2Fe2+O3 yields 4Fe +3CO2Given that balanced equation 26.17 grams of Fe2O3 are mixed with 6.970 grams of carbon. How many grams of each reactant remain after the reaction is complete, and how many grams of each product is produced
the temperature derivative of the entropy at constant pressure is related to what important,measurable physical quantity? Can this quantity ever be negative?And also recall how the curvature of a surface is related to the sign of a certain derivat..
Calculate the pH of a 0.02 M solution of oxalic acid (H2C2O4). Ka1 = 5.9 x 10^-2, Ka2 = 6.4 x 10 ^-5. Calculate the concentration of oxalate ion, (C204^2-) in the solution
An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample
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 0.731 V.
Measurements also show that a certain sample of the unknown compound contains 9.8 mol of oxygen and 3.31 mol of chromium.
The relative reactivity values calculate the expected product distribution in the radical chlorination of 3-chloropentane.
How much energy would be absorbed as heat by 75 g of iron when heated from 295 K to 301 K? (Cp for iron=0.449 J/g*C)
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
Like many ATP-dependant enzymes, the ATP synthase can be "run in reverse" by providing the enzyme with ATP. If the ATP synthase was reversed while inside the mitochondrion, which of the following would occur?
which are hybrid orbital the carbon at the following molecules a, H3C-CH3 b, H3C-CH= CH2 c, CH3-C Tripl bond C-CH2OH d, CH3CH=O
For a standard cell made using gold (Au) and gold (III) nitrate, and cobalt and cobalt (II) nitrate Calculate the Ecell if the concentration of Au(NO3)3 is 0.27 M and the concentration of Co(NO3)2 is 0.74 M.
a gas-filled balloon having a volume of 2.50 l at 1.2 atm and 25degc is allowed to rise to the stratosphere about 30 km
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