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According to the following reaction, how much energy is required to decompose 55.0 kg of Fe3O4? The molar mass of Fe3O4 is 231.55 g/mol. Fe3O4(s) ? 3 Fe(s) + 2 O2(g) ?H°rxn = +1118 kJ
Calculate the maximum amount of thorium ion that could be present in a waste water, if it is made 0.1500 M in oxalate ion. Assume the oxalate is present in stoichiometric amount, compared to the thorium.
In the manufactoring of computer chips, cylinders of silicon are cut into thin wafers that are 3.00 inches in diameter and have a mass of 1.50g of silicon. How thick, in milimeters( mm) is each wafer if silicon has a density of 2.33 g/cm3. The..
isotope 1 has a mass of 120.9038 rm amu and a relative abundance of 57.4 and isotope 2 has a mass of 122.9041 rm amu.
How many moles of bicarbonate ions, aluminum ions, and oxygen atoms are present in 26.0 g aluminum bicarbonate?
Number of protons & the number of neutrons in the nucleus of the element boron and potassium and the number of electrons in their 1st & 2nd quantum shells?
A container of gas at 760 mmHg and 20 degrees C is heated to 40 degrees C. What is the new pressure in mmHg?
Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium.
This is a study guide for naming of organic compounds, specifically alkanes and substituted alkanes. Thirty (30) questions and answers are also included. The study guide shows you
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
A 1.630 g sample of naphthalene, C10H8(s), is completely burned in a bomb calorimeter assembly and a temperature increase of 8.44°C is noted.
what mass of cucl2 is contained in 75.85 g of a 22.4% by mass solution of cucl2 in water
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