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Natural gas is a mixture of many substances, primarily CH4,C2H6,C3H8 and C4H10. Assuming that the total pressure of the gases is 1.34 atm and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas
For the following pair of polymers, state whether or not it is possible to determine whether one polymer is more likely to crystallize than the other. 1) linear and syndiotactic polypropylene
You dissolve 12.6352 g of potassium iodide in water and bring the volume of solution to 250.0 ml. What is the molar concentration of KI and what volume of 0.0436 molar hydrochloric acid is required to react with 30.0 ml of 0.0278 molar LiOH?
What mass of Cu is electroplated by running 13.0 A of current through a Cu^2 solution for 4.00 h? Express your answer to three significant figures and include the appropriate units.
What is the pH of this solution? What is the concentration of the molecular species H3PO4?
a fuel oil is composed of C10H22 and C12H26 when the fuel oil ios burned with 20% excess air the ratio of water to CO2 is found to be 1.088.
Draw those that have a trisubstituted ring where the methyl groups are oriented in para. Please draw structures
calcutate the molecular weight of surfur if 35.5 grams of sulfur dissolve in 100 grams of CS2 to produce a solution that has a boiling point of 49.48c.
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.220 M HClO(aq) with 0.220 M KOH(aq). The ionization constant for HClO
Calculate the difference in pressure of 10.00g of carbon dioxide confined to a container of volume 100cm3 at 25.0 C between treating it as a perfect gas and a van der Waals gas.
calculate the number of NaCl formula units formed when 190 Na atoms and 98 Cl2 molecules react? 2Na + Cl2 → 2NaCl
Pour the water into a 24.0 gram beaker and boil off all the water, so only the salt remains. The beaker with salt in it weighs 41.0 grams. What is the % of salt and % of water
Calcium Hydroxide is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.30 M Ca (OH)2 aq solution.
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