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For the experiment establishing the relative reactivity of halogens and halide ions briefly explain why it is important to use distilled or deionized water, rather than tap water, in the preparation and dilution of reagents used in this experiment.
I just need a general explanation of it please- Thanks!
Explain what is the maximum mole percent of N2 in an air mixture that could be used by divers at depths up to 85 m below sea level without undue risk of nitrogen narcosis
a sample of oxygen at 48 c occupies 622 ml.if this sample later occupies 1252 ml at 55 c and 1.4 atm what was its
Each atom in HF has a fractional charge of 0.416. What is the dipole moment of HF? 2. Which of the following molecules has a dipole moment? 3. Of the ions below, which ion has the smallest atomic radius?
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl. Kb of CH3NH2 = 3.7 10-4.
A solution is made by mixing 0.5 L of 1.0 molarity KBr and 0.5 L of 1.0 Molarity K3PO4. What is the concentration of each ion in the solution
When a 0.369 g sample was studied by combustion analysis, 0.662 g of CO2 and 0.0897 g of H2O formed. How many moles of each of the following were in the original sample? C: ? H: ? Cl: ? What is the molecular formula?
What is the enthalpy change corresponding to the melting of 2.5 moles of H2O? What is the system? What is the surrounding?
Given that the rate constant for the decomposition of X is 1.60 M^-1 min^-1, calculate the concentration of X after 11.0min.
Derive an expression for work done in reversible isothermal expansion of a gas obeying van der waals equation. calculate the work done in isotherfmal expansion of 1.0 mol of CO2 from an initial volume of 1 L to a final volume of 5.0 L assuming it ..
Compute the total translational kinetic energy of the air molecules in a spherical balloon of radius 43.0 cm at 24oC and 1.2 atm. Is this enough energy to heat 200mL of water from 20oC to 90oC for a cup of tea
A blight has wiped out the pineapple crop. You are asked to synthesize the ester that is responsible for the scent of pineapple, butyl butanoate. Draw the skeletal structure of the reagents needed to make this scent.
What are structures and what process used in the reaction of Isobutylene with HCL to get tert-butyl-chloride?
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