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Compute the volume of o2 gas that would be wanted to react with 50.0g of al at a standard pressure of 1atm and 22.5 C
explain how to correct for the partial of water vapor when calculating the partial pressure of a dry gas is collected
how many grams of water are consumed if 4.0 g of hydrogen gas and 32.0 g of oxygen are produced
Compute the pH at the equivalence point for the titration of 0.20M HCL versus 0.20M NH3.For NH3, Kb=1.8x10
Carbon is a fascinating element that is capable of forming four covalent bonds.
what reaction will take place between sodium bicarbonate and hydrochloric acid? please show balanced equation. help
Depict the condensed structural formula for the hemiacetal formed by adding one ethanol molecule to each of the following
The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.253 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 26.9°C.
A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. (Use thermodynamic derivation to support your explanation).
If a closed "piston-container" of water and CO2 gas were warmed, and the volume were expanded, what would be the expected change in solubility of the gas
Elemental analysis of a compound containing H, B and O gave 1.3% H and 27.5% B. The molecular weight of the compound is 157.3. What is the molecular formula of the compound. a. H3B5O6 b. H2B4O7 c. H2B5O9 d. H2B4O8
What is the pH of the resulting solution when 24.88 mL of 8.00 M KOH is added to a 1.36 liter solution that has 0.63 M acetate ion CH3COO- and 0.64 M acetic acid CH3COOH? Ka = 1.76 x 10-5
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