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indicate the direction of the bond polarity of NH3 and CH4? are either of the molecules polar? is ClH3 polar? why or why not?
If a 1,2-diol is subjected to a periodic acid test, a white solid will form when silver nitrate is added. What is the identity of the white solid?
NaOH are required to neutralize 1.22g of an unknown acid, HA, what is the molecular unit of the unknown acid? Balanced equation: NaOH + HA --> NaA + H20
At the start of the experiment, both thermometers record the same temperature. Why does, after 10 min, thermometer B record a lower temperature than thermometer A?
When 0.538 g of Neon is added to an 800 cm^3 bulb containing a sample of argon, the total pressure of the gases is found to be 1.17 atm at a temperature of 295 K. Find the mass of the argon in the bulb.
What pair of elements would you expect to exhibit the greatest similarity in physical and chemical properties? WHY?
Diprotic Acids and Solution Equlibria, A 1.200 M solution of HCl is added to a solution containing 0.150 moles of sodium phosphate (Na3PO4). The resulting solution is then diluted to exactly 0.500 L
Calculate the molarity of hypochlorite ion in a commercial bleach solution. It contains 5.25% sodium hypochlorite by mass and the density ofthe solution is 1.08 g/mL.
Use the Boltzmann equation to calculate the excited-state and ground-state population ratio for HCl (g*/g0=1) at room temperature (25 oC). The frequency of the absorption from the ground to the excited state is 2885 cm-1. What is the population ra..
The enzyme, carbonic anhydrase, is a large zinc-containing protein with a molar mass of 3.00 × 104 g/mol. Zn is 0.218% by mass of the protein.
How many moles of N2 are produced by the decomposition of 1.40 of NaN3 ?
What is the boiling point of a solution that is produced by adding 650 g of cane sugar (molar mass is 342.3 g/mol) to 1.5 kg of water? Cane sugar is a molecular substance.
A certain toilet cleaner uses NaHSO4 as its active ingredient. In an analysis, 0.500 g of the cleaner was dissolved in 30.0 mL of distilled water and required 57.4 mL of 0.00535 M NaOH for complete neutralization in a titration.
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