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How many grams of Cl 2 can be prepared from the reaction of 16.0 g of MnO 2 and 30.0 g of HCl according to the following balanced chemical equation?
MnO 2 + 4HCl → MnCl 2 + Cl 2 + 2H 2O
The initial solution pH depend on both the Ka and the concentration of the weak acid, so measuring the initial pH very accurately may be sufficient to determine both these unknowns.
Question- Jewelry and tableware can be silver-plated by reduction of silver ions from a solution of silver nitrate. The net ionic equation is Ag+(aq)+e??Ag(s). How many grams of silver nitrate would be needed to plate 15.5g of silver on a piece of ..
what volume of oxygen is comsumed when 3.00 moles of carbon monoxide is produced in 2C +O2 -> 2CO
A 250.0-mL sample of water was adjusted to pH 10 with ammonia buffer and calmagite indicator was added. The prepared sample required 30.84 mL of 0.00802 M EDTA for titration to the endpoint. Calculate the hardness as ppm CaCO3
A 1.90 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 36.0 percent of the NOCl had dissociated.
For hypochlorite bleaching agents, why do manufacturers sometimes identify their availablechlorine on product labels? Explain what available chlorine means? Discuss some hazards associated with metallic hypochlorites. Discuss how water..
What would be the pH of a buffer system containing 1.0 M NH3 and 0.10 M NH4Cl. (Kb(NH3) = 1.8 x 10-5)
The production of NO gases is an unwanted side reaction of the main engine combustion process that turns octane,C8H18 , into CO2 and water. If 85% of the oxygen in an engine is used to combust octane, and the remainder used to produce nitrogen dio..
Understanding of chemistry basics - which of the following is not changed by the activity of an enzyme during a chemical reaction?
The concentration of O2 in water required to support aerobic aquatic life is 4.0 mg L-1. What is the partial pressure in torr of O2 in the atmosphere that corresponds to this concentration. The Henry's law constant for O2 in water is 3.27 x 107 to..
An aqueous solution containing 5.38g of an optically pure compound was diluted to 200.0 ml with water placed in a polarimeter tube 20.0cm long. The measured rotation was -3.43degrees at 25 C. Calculate the specific rotation of the compound.
What's a front and what are factors and conditions associated with a cold front?
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