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Question- The half-life of Co-60 is 5.27 years. How long will it take for the radioactivity of a sample of cobalt-60 to diminish to 3% of its initial value?
I am in urgent need of solution of above problem with complete explanation
Problem- Which forms of D-glucose in the ring configuration has the -OH at carbon-1 below the ring, in the Haworth Projection
Complete a titration of a pure weak triprotic acid and merely see two major pH jumps. One at 10.0mL and one at 15.0mL. Explain at what volume is the other equivalence point
Cyclohexanol produces cyclohexene when heated to 70C in the presence of a sulfuric acid catalyst. Write the equation of the reaction.
Combine 15.0 mL of 0.125 M chromium (III) nitrate and 15.0 mL of 0.125 M ammonium carbonate. What is the limiting reactant
The vapore pressure of water at 16 degree celsius is 13.6 torr and it is 15.5 torr at 18 degree celsius. what is the vapore pressure at 17 degree celsius
when a metal at a higher temperature is transferred to water at a lower temperature heat is inevitably lost to the
Concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl acetate. Why is sulfuric acid needed if another acid, acetic acid, is already present
How many atoms are contained in a block of aluminum metal measuring 6 mm x 8 mm x 18 mm. The density of aluminum is 2.7 g/cm3.
The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O--->N2 + O2. If the activation energy is 250 kj/mol and the frequency factor is 8.0 x 10^11 s^-1, what is the rate constant for the first order reaction..
a flask is filled with 1.20 of argon ar gas at the temperature ofnbsp twenty five degree celsius . a sample of c2h6
How many moles of I2 were used in the titration? How many moles of SO2 were in the 5.00 mL sample of wine? Determine the mass of SO2 (in mg) in the 5.00 mL sample of wine. Determine the concentration of SO2 (in mg/L) in the wine.
A liquid has an equilibrium pressure of 130 torr at 25C and is placed into a 1L vessel. What is the pressure difference shown on the manometer, and what is the composition of the gas in the vessel, under each of the following conditions
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