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Balance the following net ionic equation. Use H+ rather than H3O+. What is the sum of the coefficients? (Do not forget coefficients of one.)I- + NO2- ® NO + I2 (acidic solution)
Write balanced net ionic equation for the neutralization of equal molar amounts of KOH and HClO_4
calculate how many liters of seawater are needed to produce 79.1 L of fresh water at 20 °C with an applied pressure of 50.0 bar.
calculate the volume of 0.1205 M NaOH that will neutralize 10.0 mL of 3.8% (by mass) citric acid solution.Assume the density
The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and 0.30 mol of NaC2H3O2 in enough water to make 1.50 L of solution. Its pH was measured as 4.50 on a meter.
A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66g. It is then filled to a pressure of 0.967atm at 31 degrees C with a gas of unknown molar mass and then reweighed to give a new mass of 153.81g. What is the mola..
Explain from a micro and macro perspective what would happen and what might be observed when a bimetallic strip of aluminium and copper is heated from 27 degrees to 327 degrees?
The Ksp value for copper(II) sulfide is 6.0 × 10 -37. What is the molar solubility of this compound?
A buffer that contains 0.49 M of the base, B, and 0.29 M of its conjugate acid, BH+, has a pH of 8.10. What is the pH after 0.0025 mol HCl is added to 0.25 L of this solution
Draw the major and minor products generated in the reaction of 1-Bromo-3methylene-cyclopentane in methyl alcohol and heat.
Write a balanced equation to show the polymerisation of the molecule CF2CF2. Show two repeat units of the polymer.
a 10-mL graduated cylinder (where volumes can be read to the nearest 0.1 mL). Calculate the required quantity of each reagent and the volume of water that must be added for dilution.
The volume of a mass of gas is 300ml at 25 degree celcius and 685 torr.
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