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Question- Enough of a monoprotic acid is dissolved in water to produce a 0.0124 M solution. The pH of the resulting solution is 6.24. Calculate the Ka for the acid.
In this case, the inital 10-7 M H from water is not negligible. If [H ]iniital = 10-7 and [H ]final = 5.8 × 10-7, by how much did the concentration change? What does that say about how much A- was produced?
Give your answer with short explanation
A helium balloon has a volume of 3.50L at 22.0 degrees celsius and 1.14atm . What is its volume if the temperature is increased to 30.0 degrees celsius and the pressure is increased to 1.20atm
Find the molality of the solution. Find the molecular weight of the unknown compound please show steps
Every sample of a pure element, regardless of its physical state, is assigned zero Gibbs free energy of formation.a.)True b) False
The reaction of Zn and Cu2+ produces a brown solid product. Explain what the identity of this product is. Give a balanced equation that shows the formation of this brown product
2NaN3(s)--> 2Na(s) + 3N2(g) How many grams of sodium azide are required to produce 19.00L of N2 at 273K and 775mmHg. A) 34.9 B) 52.0 C) 2.66*10^4 D) 3.89*10^5 E) 5.80*10^5
What magnitude of current is required to produce 1.0 kg of sodium metal in one hour by electrolysis?
Problem- How much heat (in kJ) is needed to convert 996g of ice at -10 degrees Celsius to steam at 126 degrees Celsius
1. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the slope. 2. In a Lineweaver-Burk plot of 1/v versus 1/[S} what are the units for the y intercept
Problem- Note the electronic structure of Cadmium (II) and indicate the group (type A, borderline, or type b) in which it should be placed. Predict the principal inorganic forms of the element in fresh and sea water under both oxidizing and reduci..
The pressure in a sealed plastic container is 108 kPa at 41C. What is the pressure when the temperature drops to 22C? Assume that the volume has not changed.
The organic chemical butane (C4H10) will undergo reversible rearrangement to form isobutene (C4H10) with Kc = 2.5 under certain reaction conditions
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette: 5.811g, 5.189g, 5.811g, 5.819g, 5.815g, 5.826g
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