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Combining 0.351 mol of Fe203 with excess carbon produced 16.8 g of Fe.
Fe2O3 + 3C ----> 2Fe + 3CO
What is the actual yield of iron in moles?
What was the theoretical yield of iron in moles?
What was the percent yield?
Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 1.805 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment.
can someone please show me how to draw 2-bromo-3,3-dimethyl-pentane according to Markovnikov's rule
At 0.0oC, if the volume of air is 3.4 mL and the pressure of the atmosphere that day is 695 mmHg, what is the number of moles of air?
some inexpensive humidity detection systems consist of a piece of paper saturated with Na2CoCl4 that changes colors in dry or humid air.
Write the Kb reaction of hypochlorite, OCl-. Given that the Ka valuse for HOCl is 3.0x 10^-8 calculate Kb for OCl-
Calculate the volume of 8.0g of oxygen gas if it has a temperature of 552 K, and a pressure of 5 atmosheres
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
A 20 mg sample of zinc is heated at 10 K min-1, and the peak on the DSC trace has an area of 0.371 W K. Calculate the latent heat of melting of zinc (in kJ mol-1)?
At 25 °C and 775 Torr, carbon dioxide has a solubility of 0.0347 M in water. What is its solubility at 25 °C and 1370 Torr
A 0.0050 molar solution of sugar is separated from pure water by a membrane at 20 C. What is the osmotic pressure?
Problem- Why is there an octet rule in writing Lewis structures , Why is attaining an octet of electrons important for an atom when it forms bonds to other atoms
An artist statue has a surface area of 14.6 feet squared. the artist plans to apply gold plates to the statue and wants the coating to be 2.5 micrometers thick. If the price of gold were $625.10 per troy ounce, how much would it cost to give the s..
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