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What volume of 0.600 M HCl is required to react completely with 2.50 g of sodium hydrogen carbonate? NaHCO3(aq) + HCl(aq) ? NaCl(aq) + CO2(g) + H2 O(l)
Calculate the maximum non-expansion work that can be gained from the combustion of octane(l) and H2(g) on a per gram and per mole basis under standard conditions.
If all the energy obtained from burning 1.16 pounds of propane is used to heat water, how many kilograms of water can be heated from 24.8 degrees celsius to 43.6 degrees celsius
The specific heat of liquid ethanol, C2H5OH(l), is 2.46 J/g·°C and the heat of vaporization is 39.3 kJ/mol. The boiling point of ethanol is 78.3 °C. The molecular weight of ethanol 46 g/mol.
Nitrogen dioxide reacts with water to form nitric acid as well as nitrogen monoxide according to the equation-3NO2(g)+H2O(l)?2HNO3(l)+NO(g) Presume that 3.9mol NO2 and 1.2mol H2O combine and react completely. Explain which reactant is in excess
What is the pH of 5.0756mg barium hydroxide octahydrate in4.6 liters of water, and the pH of 0.19789g dihydrogen sulfate in 374mL of water both are separate and at 25 degrees C with nothing else present, assume no change of volume and or temp.
Both magnesium and alumnium react with an acidic solution to produce hydrogen. Why is that only one of the following equations correctly describes the reaction
A sample of chalk contained as impurity a form of clay which loses 14.5 % of its weight of water on prolong heating. 5 g of chalk on heating shows in weight , due to evolution of CO2 and H20 by 1.507 g . calculate % of chalk in the sample.
What volume in mL of 0.7M NaOH solution would react with 83mL of 0.74M H3PO4 solution. Balnced equation needed and answer should be reported in two decimal pleaces.
What is the molecular formula of the compound with empirical; formula C5H8O and molar mass 336.5 g mol-1?
Assuming that the solute consists entirely of NaCl (over 90% is), calculate the osmotic pressure of seawater at 20 degrees C
A procedure was performed on a 0.49 g sample of copper oxide and 0.40 g of dry copper metal was recovered. Show all the steps solving for the empirical formula of copper oxide and keep significant figures in mind.
The drop of an electron from a high level to the ground state in a hydrogen atom would be most closely associated with (a) long wavelength radiation
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