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Question: 2 NH3(s) -----> N2(g) + 3H2(s)
Which atom is oxidized?_____ (from oxidation state ____ to oxidation state ____)
Which atom is reduced? ____(from oxidation state ____ to oxidation state ____)
What is the percent yield of a reaction using 10 moles of acetone and 16 moles of benzaldehyde and obtains
Molecular Bromine is 24 per cent dissociated at 1600 K and 1 bar in the equilibrium Br2 equilibrium 2 Br. Calculate K at a) 1600 K and b) 2000 K given dH(reaction) = 112 kJ/mol over the temperature range.
When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water. What weight of sodium carbonate would have been present originally
The ReO3 structure is cubic with Re at each corner of the unit cell and one O atom on each unit cell edge midway between the Re atoms. Define this unit cell and determine
A hypothetical compound has a formula X4YZ5. if the atomic masses of X, Y, and Z are 165.3amu, 75.5amu and 37.2 amu. Calculate the % composition by mass of the compound
A 25ml sample of solution containing thallium(I) (TI) was treated with K2CrO4 to perticipate thallium chromate. The solid TI2CrO4 was filtered, washed to remove excess chromate, and then dissolved in dilute H2SO4
A 1.6 g sample of a molecular compound is dissolved in 104 g of tetrachloromethane (carbon tetrachloride). The normal boiling point of the solution is 61.51degreesC, the normal boiling point of CCl4 is 61.2degreesC. The boiling point constant for ..
what happens when the calorimeter cup has several milliliters of water in it when you added in the HCl
If you are given a 0.26 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced
What volume in mL is needed for the solution of HCl to react with a sample of Al 16.0? 2Al +6HCl => 2Al + 3H2. Calculate the molar concentration of ions in a 0.0200M solution is in Al(NO3)3
What is the pH of a solution obtained by dissolving two extra-strength aspirin tablets, containing 500 mg of acetylsalicylic acid each, in 300 {mL} of water
An isotonic solution is described as 0.92% NaCl (g/mL). Would this also be the required concentration for isotonic solutions of other salts, such as KCl, MgCl2,
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