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The purity of a substance will often affect the melting and boiling points. This is used by chemists to assess the purity of a product. How does the purity of the substance affect the melting and boiling points?
Explain the human eye is a complex detector for visible light. IF the optic nerve needs a minimum of 2.0 x 10-17 J of energy to trigger a series of impulses that eventually reach the brain. Explain how many photons of blue light 475 nm are needed
If 32mL of 7.0M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
If the atmospheric pressure at 30 km is 28.0 torr and the temp is -48 C, what is the volume of the balloon when it bursts?
How do I convert Benzene to M-Bromoaniline using HNO3,H2SO4 and BR2FE2BR3, and SNHCL. What is the correct order of the reagents and why
which gas has particles with the slowest average speed at 28 C? 1- Carbon dioxide 2- Sulfur trixoide 3- Sulfur hexafoluride 4- Hydrogen choride 5- Helium
Nitrogen gas may react with hydrogen gas to form hydrazine gas, N2H4, according to the reaction N2 + 2 H2 ---> N2H4. 10 L of N and 25 L H react to completion (the limiting reagent is converted entirely to hydrazine).
What is the pH of a solution containing 50.00 mL of 1.0 M HCl and 50.00 mL of 1.0 NH3? The Kb for NH3 = 1.8 x 10-5.
Write the balanced 1) molecular, 2) total ionic, 3) net ionic reactions, and identify the spectator ions for the following: sodium sulfate(aq) + strontium nitrate(aq) -->
What is the pressure, atm., exerted by this mixture?
When heated to 350 C at 0.950 atm, ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases: 2NH4NO3 (s)? 2N2(g) + 4H2O (g) + O2(g)
Compute the electrode potential of hydrogen electrode at standard temperature if the electrode is immersed into acidic solution with pH = 2.85 and the partial pressure of hydrogen gas p(H2) = 0.73 atm.
How many milliliters of 0.0820 M NaOH are required to titrate each of the following solutions to the equivalence point. (a) 40.0 mL of 0.0950 M HNO3
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