Calculate the mass of sodium iron produced
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
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Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals?
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr. what is the partial pressure of gas collected ?
A cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25C. What is the density in g/cm^3 at this temperature? A metal rod has a mass of 17.62 g. A graduated cylinder contains 28.9 mL of water.
Consider the titration of 50.00 mL of 0.1000 M HNO2 (Ka = 7.1•10-4) with 0.1000 M NaOH solution. What is the pH after the addition of 15.00 mL.
Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product smells vile. Calculate the standard enthalpy change for this reaction using standard enthalpies of formation.
A 10.00 mL sample of this stock solution is added to 59.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.
An unknown organic compound has the empirical formula C2H2O. A solution of 3.775 g of the unknown compound dissolved in 12.00 g of water is cooled until it freezes at a temperature of 4.72°C. Determine the molar mass and the molecular formula
Why is it organized in this way? Why is the presence of ozone in the stratosphere important to us? Why does the presence of CFC"s in the stratosphere interfere with this process?
How many kilojoules of heat are absorbed when 7.20g of MgO(s) is decomposed into Mg(s) and O2 (g) at constant pressure?
A fixed quantity of gas at 21 exhibits a pressure of 730 and occupies a volume of 4.40. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.85 while the temperature is held constant.
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