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(IV) (2 points) Hydrogen cyanide (HCN) is a poisonous gas that has been used to execute...
Pure oxygen gas was first prepared by heating mercury(II) oxide, HgO: 10.72 2 HgO(s)-? 2Hig(I) + 02(g) What volume in liters of oxygen at STP is released by heating 10.57 g of HgO? 10.73 How many grams of HgO would you need to heat if you wanted to prepare 0.0155 mol of O2 according to the equation in Problem 10.72?
Answer: 19) The reaction between A (light color spheres) and reactant B (dark color spheres) is shown in the following diagram: Based on this diagram, which equation best describes the reaction? A) A + B ...-> AB B) Az + 4B -----> 2AB, C) 2A + B ---> 2AB2 D) 4A2 + 4B ----> 4AB2 E) 10A + 5B: ------> 5A,B, Answer:( ) 58) Hydrogen cyanide (HCN) is a poisonous gas that has been used to execute prisoners in the...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following? (a) Triple the Kelvin temperature while holding the volume constant (b) Reduce the amount of gas by 1/3 while holding the temperature and volume constant (c) Decrease the volume by 45% at constant T (d) Halve the Kelvin temperature, and triple the volume 63) Assuming that air contains 78.0 percent Ni, 20.0...
Hydrogen cyanide gas can be produced by the following reaction: 2 CH4(g) + 2 NH3(g) + 3 O2(g) 2 HCN(g) + 6 H2O(g) A) what volume of oxygen gas (in L) is required to react completely to produce 550 L of hydrogen cyanide? Assume reactant and product volumes are measured at 300 kPa and 1200 degree Celcius. B) what volume of water vapour (in L) will be produced during the production 255 L of hydrogen cyanide? Assume all reactant and...
Help solve this problem relato of gas in a chemical res (a) masas problem b) mas volume problem volume-olume ochinery son of the e e d 2. Whaterest two substances C mol non ten el none of these e W 3. What (10 points) Show your answers clearly for all the following questions 1. Using the conservation of mass law, predict the mass of NH3 gas produced from the reaction of 1.000 g N, and 0.216 g Hz. N2(g) +...
2. (10 points) An ideal gas has a density of 2.765 g/L at 78.0 °C and 1180.0 mm Hg pressure. a. calculate the density of the gas at STP. b. determine the mass of gas in 500.0 mL container at STP
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...