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Question- A NiMH battery containing 4.10 g of NiO(OH)was 50% discharged when it was connected to a charger with an output of 2.40 A at 1.3V. How long does it take to recharge the battery (in minutes)?
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Liquid butane C4H10 , the fuel used in many disposable lighters, has delta Hfinal=-147.5 kj and a density of 0.579 g/ml . Use Hess's law to calculate the enthalpy of combustion in kJ/mol.
Propanoic acid, HC3H5O2, ionizes in water and has a Ka=1.34x10^-5. What is value of Kb for the propanoate ion
Which of the following is NOT part of the Kinetic Molecular Theory? A) Gas particles do not repel each other. B) There is a large distance between gas particles as compared to their relative size.
What is the molecular arrangement of bonds at every carbon atom of crotononitrile. (ex like trigonal plant, trigonal pyramidal, linear etc.)
a sample of water contaminated with radionuclides showed an activity of 12436 counts per second at time of sampling and
Cobalt-60 exhibits first order decay and has a half-life of 5.26 years. If it must be replaced in a radiotherapy unit when its radioactivity decreases to 75% of its original value, how long can a 1.00 g sample be employed?
This energy is called the work function of that metal. What is the longest wavelength of radiation (in nm) that could cause the photoelectric effect in each of the following metals
Question- Which atom in each pair has the more exothermic electron affinity. (Consider the stability of the electron configurations of the atom and its anion)
Calculate the theoretical yield of C2H5Cl when 110 g of C2H6 reacts with 226 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl.
Available are solid oxalic acid dihydrate, solid sodium hydrogenoxalate monohydrate, solid sodium oxalate, and liquid water. State the amounts and identities of the reagents, and the glassware, that you would use to prepare 100 mL of a buffer solu..
Identify which gas is in excess and by how much and calculate the volume of nitrogen produced.
A 0.021 mol sample of a weak acid, HX, is dissolved in 575 mL of water and titrated with 0.41 M NaOH. After 29 mL of the NaOH solution has been added, the overall pH = 6.074. Calculate the Ka value for HX.
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