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Problem- The radioactive decay of a certain sample produced 993 disintegrations per minute. Exactly 5.00 days later, the rate of decay was found to be 265 disintegrations per minute. Calculate the half-life, in days, for the decay of this sample.
Express your knowledge to solve the above question
One mole of a gas obeys van der waals equation of state that is allowable to expand isothermally from v1 to v2. Obtain an equation for the change in Helmholtz energy for such expansion.
Estimate the percent change in the volume of a sample of glycerol if it is pressurized
the densities of three solutions with known concentrations 20 50 and 70 and one unknown solution were determined. if
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Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 5.3 g of iron are to be dissolved in 1.7 M HCl. What is the minimum volume (in mL) of the acid solution required to react with all of the iron
The volume of solution B remains constant which is 10mL. The different concentration of Solution A determines the rate of reaction. However now I want to ask. Explain why is it important to keep the total volume of the solution in 10mL
Presuming no calorie intake from water or minerals, if a 100.-gram steak contains 49% water, 15% protein, 0% carbohydrate, and 36% fat define what is the estimated gross energy content of steak in Calories
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Why does the tetrahedral intermediate for carbxylic acid derivatives decompose into a carbonyl species
Calculate the hydronium-ion concentration and the pH of a 0.0059 M solution of chloroacetic acid. Ka is 1.3 10-3.
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