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Explain the starting voltage of a fresh alkaline battery is 1.70 V. State the voltage decreases during discharge and is 0.85 V when the battery has delivered its rated capacity. Define if we assume that the voltage declines linearly as current are withdrawn, educated guess the total maximum electrical work the battery could carry out during discharge
Determine which structure do you expect to contribute the most to the actual structure of BrO 4 - keep in mind to take in expanded octets, as suitable?
an ideal gas at a given state expands to a fixed volume by two types of processes i isobaric ii isothermal. for which
A container (8.65-L ) holds two gases mixture at 31 °C. The partial pressures of gas X and gas Y, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in temperature or volume determine the total pressure be..
a mixture of a and b is found to obey raoults law. at 60 degrees celcius the vapor pressure of pure a is 400 mm hg and
If a 88.2 gram charcoal briquette (assume pure carbon) is burned in an excess of oxygen, what mass of CO2 is produced by the reaction
An ordinary vapor compression refrigeration cycle using R134a is to operate with a condenser at 45 C and an evaporator at -10 C. The compressor is 80% efficient.
lysozyme is an enzyme that breaks bacterial cell walls. a solution containing .150 g of the enzyme in 210 ml of
Calculate the maximum amount of thorium ion that could be present in a waste water, if it is made 0.1500 M in oxalate ion. Assume the oxalate is present in stoichiometric amount, compared to the thorium.
If 500ml of a solution containing 1.00g of barium nitrate (199.33 g/mol) is combined with 500 ml of a soluiton containing 1.00g of sodium sulfate
NH3 solution is titrated by HCl solution, what is the pH at the 3/4 point of the titration? Kb(NH3)=1.8*10^-5
What is the correct electron configuration for copper Answer a. [Ar]4s23d8 b. [Ar]4s23d9 c. [Ar]4s13d10 d. [Ar]3d10 e. [Ca]3d9
The composition of a gas on a dry basis is 74.0 mole% N2, 10.0% O2, 12.0% CO2, and 4.0% CO. If the mole fraction of water is 0.190, what is the gas composition on a wet basis
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