how do i solve this? 1. A TA in Chemistry 111B prepares pure oxygen by heating...
Use the References to access important values if needed for this question. Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KCIO3(s)— 2KCI(s) + 302(g) The product gas, 02, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.24 L, the number of grams of O2 formed is g. The vapor pressure of water is 23.8 mm...
please answer both. I just need these two last questions and there due at midnight. Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
Use the References to access important values if needed for this question. Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KCIO3(s)—>2KCl(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 749 mm Hg. If the wet O2 gas formed occupies a volume of 8.32 L, the number of grams of O2 formed is g. The vapor pressure of water is 23.8 mm Hg...
chemical reactions in the atmosphere How will you obtain your oxygen gas for this experiment? Oxygen gas will be collected by decomposing potassium chlorate according to this equation. 2 KCIO3 (s) ---> 2 KCI+ 3 O2() Oxygen gas will be collected by decomposing hydrogen peroxide according to this equation. 2 H2O2 (aq) ---> O2(g) + 2 H20m) Oxygen gas will be taken from a gas cylinder. Oxygen gas will be taken from the air.
CHEM 2A Class Pack F18 Ideal Gas Law and Reactions 15. What volume of oxygen is collected when 5.25g of potassium chlorate is reacted at 725torr and 32°C? 2KCIO3 (s) → 2 KCI (s) + 3 O2 (g) b) what volume of oxygen will be collected when 5.25g of potassiur chlorate react at 0°C and 1 atm? 16.25.2L of sulfur dioxide gas was collected over water at 25°C and How many grams of Iron (II) sulfide were reacted? (6) +...
6. A 1.015-g sample of the known mixture of KCIO, is decomposed by heating to give 278 ml of oxygen gas collected over water at 22°C and a barometer reading of 765 mm Hg. Refer t Example Exercise I and calculate the volume of oxygen gas at STP Refer to Example Exercise 1 and find the mass of KCIO, (122.55 g/mol) in the mixture. What is the percentage of potassium chlorate in the known mixture? 7. What are the major...
Decane, CiH, undergoes a combustion reaction. Once balanced the coefficient for oxygen is a. 2 b. 10 c. 20 d. 22 e. 31 4. Aluminum metal reacts with aqueous hydrochloric acid to yield hydrogen gas and aqueous aluminum chloride. If 35.9 g of aluminum react with an excess of hydrochloric acid, how many g of hydrogen gas will result? a. 4.91 g b. 3.02 g c. 2.01 g d. 1.70 g e. 4.02 g 3. A 235 g sample of...
Chem 2A Worksheet for Gases Units of Pressure: 760 mmHg 700 to 1 am Standard Temperature and Pressure (STP): 0°C 273K, i am Molar Volume of a Gas at STP. 1 mole of an ideal gas = 22.AL 1. What is the volume of 11.8g of nitrogen gas at STP? 2. If 33.75L of oxygen are collected when potassium chlorate is decomposed, how many grams of KCIO, reacted at STP? 2KCIO, (s) → 2 KCI (s) + 3 O2 (g)...
Example: 1 3 На 2 NH USE: N2 + a) If we need to produce eight moles of ammonia, how many moles of nitrogen and hydrogen gases are required? b) If we need to produce eighty moles of ammonia, how many moles of nitrogen and hydrogen gases are required? Example: 2 3020) 2KCI(s)+ a) How many grams of KCl will be produced if 25.8 moles of potassium chlorate is heated? 2KCIO3) b) How many gram(s) of oxygen gas is produced...
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?