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The first-order rate constant for the decomposition of a certain hormone in water at 25oC is 0.125 yr-1. How long will it take for the concentration of the solution to drop from 0.0100 M to 0.0075 M at this temperature?
How many kJ of energy are required to convert 747 grams of water (liquid) at 23.4°C to steam at 100°C? The following information is given for H2O:
Calculate the average molecular weight of a gaseous mixture with the following composition on a mole % basis: CH4= 30%, H2= 10% and N2= 60%.
What mass of silver chloride can be produced from 1.70 L of a 0.177M solution of silver nitrate.
Is it true that an HCl/NaCl mixture will act as a more effective buffer than a mixture of CH3COOH & CH3COONa
If 230nm wavelength light were used instead still 75µm what changes would be there compared to part (a)? Looking at the number and the energy of the electron
Consider the temperature change, together with the volume and concentration of the acid and base, noted in the HAZMAT team's response regulation information(50mL 1M HCl,50mL 1M NaOH,change in temp = 6.7C).
A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 °C and 90 kPa, find the molecular formula for this compound
Which one of the following pairs of acids and conjugate bases is incorrectly labeled or incorrectly matched?
calculate the vapor pressure of the pressure cooker if the temperature inside the pressure cooker is 119 degree celcuis.
A nuclear power plant operating at 40.0% efficiency produces 1132 MW of usable power in 1.00 year and consumes 1.16×10^6 g of uranium-235. What is the energy in joules released by the fission of a single uranium-235 atom. Answer in Joules/atom.
A 10g sample of acetic acid HC2H3O2. was burned in a bomb calorimeter in an excess of oxygen. The temperature of the calorimeter rose from 25 C to 35.84C. If the heat capacity of the calorimeter and its contents is 13.43KJ/C, what is the enthalpy ..
discuss at least three potentially hazardous features associated with concentrated sulfuric
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