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Some commercial drain cleaners contain two components: sodium hydroxide and aluminum powder. When the mixture is poured down a clogged drain, the following reaction occurs NaOH (aq)+Al (s) + H2O (l)-->NaAl(OH)4 (aq) + H2 (g). The heat generated in this reaction helps melt away grease and the dihydrogen gas released sirs up the solids clogging the drain. Calculate the volume of H2 formed at 20celsius and 750 torr if 3.12 g of Al is treated with excess NaOH.
octane has a density of 0.692g/ml at 20C. How many grams of O2 are required to burn 30.5 gal of C8H18
To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?
Problem- An aqueous sulfuric acid solution has a sp. gr. of 1.124 and contains 18.69% by mass. Calc M, N,m, mol fraction of solute, BP, FP, and osmotic pressure at 25.0 Celsius assuming 100% effective ionization.
A mixture is made from 100ml of 0.1M Mg2+ ions and 300ml of 0.1M F- ions. A precipitate forms. Determine the concentration of each ion in solution given that Ksp of MgF2 is 3.7×10-8.
We would like to make a buffer solution with a target pH of 8.44 (ignore activity). Suggest 3 conjugate acid/base pairs that could be used to make such a buffer.
Use symmetry analysis to generate a molecular orbital diagram for XeF4. As a basis set, consider one σ-bonding hybrid on each F that can be treated the same way as a hydrogen 1s orbital. Ignore the lone pairs/ p orbitals on Flourine.
If you start with 15.0 of a 0.900 solution of , and then dilute it with water to 270 , what is the concentration of at equilibrium?
A) What is the deactivation in fluorescence and list and explain the main reason for it?
A pitcher containing .9 L of water at 3 degrees celceus is removed from the fridge. How many kilojoules are needed to warm the water to a room temperature of 35 degrees celceus
With Collagen cross-link inhibitors that are clinically tested to be safe and effective should they also be available to the general public
In the titration of an impure sample of KHP, it was found that 30.6 mL of 0.100 M NaOH was required to react completely with 0.745 g of sample. What is the percentage of KHP in this sample
At a temperature of 415 C and a pressure of 725 mmhg , how many grams of NH3 can be produced when 4.10 L of NO2 react?
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