Question

1) Calculate AH (250°C) for the formation of ammonia gas from nitrogen gas and hydrogen gas Substance Enthalpy value (kJ/mole) Entropy value K-mole) 1925 1306 191.5 Ammonia gas Hydrogen gas Nitrogen gas (write rxn with phase labels) 1) Calculate the standard Enthalpy change at 25.0°C Gaseous water (-241.8 kJ/mole) plus Carbon graphitel( 0.0 kJ/mole) yields hydrogen gas (0.0kJ/mole) plus carbon dioxide gas(-393.5 kJ/mole) Calcium carbonate (marble chips) reacts with hydrochloric acid to produce carbon dioxide gas, water and calcium chloride. Write the reaction. What volume of gas can be generated at STP from 3.00 grams of marble chips? (use stoichiometry and Ideal gas law to solve). 1) Write out the molecular, complete, and net-ionic equations for the following reaction The mixing of iron(III) chloride and silver nitrate The mixing of barium chloride and magnesium sulfate The mixing of hydroiodic acid and strontium hydroxide he mixing of calcium nitrate and potassium phosphate 10) How many grams of oxygen gas would you produce if you heated 2.50 grams of potassium chlorate. The decomposition reaction produces oxygen gas and potassium chloride 17) What volume of 0.545 M lithium hydroxide is required to neutralize 20.7 mL of 0.189 M sulfuric acid? =) A 1500.0 mL gas tank (27.0°C) contains 0.512 g of oxygen gas and 0.326 g helium gas. What is the total pressure in the tank? What is the partial pressure of oxygen?

Answer 1

→ 9) MRT Calcium Carbonate (cace are also called marble chips Hydrochloric acid (nl) "Carbon dioxide (Col water (HO) and Calcium chloride (Call) Calo Hel CO + H₂O + Call, Check whether the reaction is balanced. There are 24 and 2l info products. So, blake 2 befone Hel to balance the equation Call + 2H1 - co + H₂O + Call. Foleal gas law is given by PV = nRT V MRT At Standard Temperature and pressure conditione (STP) Pressure - Pol atm Tr Temperature - 0°c + 273.15 k-273.15 K. Rz 0.0821 Latin / mo k na namber of moles & mass - Molecular weight number of moles of callo 39 100 = 0.03 moes latna (mol shamok [V = 0.673 Lil 0.6132 of Calg, is produced from 3 grams of Caco 973.15 V 0.03 0.0821 X 273.15 latn mol x Latmxk molik aten