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Suppose that you are given four test tubes, labeled A, B, C, and D, each containing a colorless solution. In each of the following questions, indicate which of the solutions included in this experiment could be used to distinguish between the pairs of solutions. In each case, describe the observations you would make and write a net ionic equation for any reaction that would occur.
(a) Test tube A contains 0.1M NaNO3 solution, and Test Tube B contains .1M Ba(NO3)2 solution.
(b) Test tube C contains .1M NaCl solution and Test tube D contains .5M HCl.
Determine the molar mass of the compound if boiling point constant for CCl 4 =4.95 K · kg/mol.?
A laboratory method of preparing oxygen gas involves decomposition of solid potassium chlorate. The products of the reaction are solid potassium chloride and oxygen gas.
Ddetermines how many tablets should be given to her if there are five tablets in stock.
Calculate kc for the reversible reaction and determine what is the activation energy
What mass of this substance must evaporate in order to freeze 250 of water initially at 25? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
Write a paper on an article and it shows many different compounds and need a better understanding of where each originated and what steps were made in their synthesis.
2H2S (g) + 3O2 (g) → 2H2O (g) + 2SO2 (g) If 3.50 g of H2S are used in the above reaction, what will be the theoretical yield of water in grams.
Gaseous carbonyl sulfide reacts according to the balanced equation. If a total of 3370 kJ of heat is generated in the reaction as written, how many moles of SO2 are produced?
The mass of 322 mL of hydrogen gas at 4.0 atm and -73°C is 1.21 grams. What is the density of hydrogen gas at STP?
when methane CH4 reacts with oxygen gas O2, water and carbon dioxide are formed. if 25.0 liters of oxygen reacts at 125.0C and 2.00 atm with 22.00L of methane initially
The mixture is diluted with deionized water to the mark and shaken vigorously. What mass of AgBr would precipitate from this mixture?
What mass of this substance must evaporate in order to freeze 112 of water initially at 18? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
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