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A student reacts 0.3000 grams of a sulfate-containing unknown with excess barium chloride. If 0.6500 grams of barium sulfate is produced, what is the percentage sulfate in the unknown?
When the sodium atom becomes a sodium ion, how does the size and electron configuration of the sodium atom change?
Compute the pH at the temperature of 25 0C of a solution prepared by mixing 50 mL of 1.60 M sodium hydroxide solution to 0.5 of .0850 M Furoic acid HC 5 H 3 O 3 .
How many carbon dioxide in kilograms is produced upon the complete combustion of 18.9 L of propane(Many home barbecues are fueled with propane gas
What is the final temperature when 125 g of iron at 92.3 °C is dropped into 50.0 g of water at 27.7 °C? The specific heat of iron is 0.444 J g-1 °C-1 and the specific heat of water is 4.184 J g-1 °C-1.
What is the gas pressure (in atm) inside a 1.89-L bulb that contains 1.56-g of Ne at a temperature of 21.1 C? Be sure to report the units as atm
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
How many liters of hydrogen gas are collected over water at 20°C and 725 mmHg when 0.75 g lithium reacts with water? Aqueous lithium hydroxide also forms.
how many moles of carbon dioxide will be formed upon the complete reaction of 0.793 moles carbon monoxide with excess water?
the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3. How far into the sheet from this high-pressure side will the concentration be 1.8 kg/m3?
Calculate ?Sºf for oxalic acid and ?Sº for the combustion of one mole of oxalic acid. c) Calculate ?Gºf for oxalic acid and ?Gº for the combustion of one mole of oxalic acid.
acidifying with dilute H2SO4 and titrating with a 0.01804 M KMnO4 solution. 33.15 mL of the permangate solution was needed to reach the end point of the titration. What is the actual molar concentration of the H2O2 solution?
Calculate the potential of the cell be if the mass of the Iron (Fe) electrode (MW = 55.85 g/mol) is 62.0 g?
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