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An average human DNA molecule has 5 X 10^8 binucleotides (rungs on the DNA ladder) of four different kinds. If each rung were a random choice of one of these four possibilities, what would the residual entropy associated with this typical DNA molecule be
the mass density of phosphorus vapour is 0.6388 kg per meter cube. What is the molecular formular of phosphorus under these conditions
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
a mixture of methane and ethane is stored in a container at 294 mmHg. The gases are burned in air to form co2 and h2o. if the pressure of co2 is 357 mmhg measured at the same temperature and volume as the original mixture, calculate the mole fract..
degress C in boling water and then dropped the hot coins into 43.0 g of water at a temperature of 15.5 C in a coffee cup calorimeter. The final temperature of the water and the coins was 21.5 C.
In the formation of diacetylferrocene, the product is always the one in which each ring is monoacetylated. Why is no diacetylferrocene produced in which both acetyl groups are on the same aromatic ring?
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
The combustion of one mole of propane, C3H8 (Molar mass 44 g mol-1) releases 2230 kJ. How much heat is released by 6.60 g of propane?
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.718 V. If the silver-silver chloride electrode is replaced with a saturated calome..
The temperature of Beaker X = 75°C and the temperature of Beaker Y = 50°C after Five minutes . determine the temperatures be after another 5 minutes have passed?
What volume in liters of O2(g) is required to form 46 L of CO2(g)? Assume both gases are measured under the same conditions.
Group A used 500 moles of styrene and 0.1 moles of benzoyl peroxide while Group B used the same amount of benzoyl peroxide as Group A but used less styrene,150 moles. What would the average molecular weight of each group's polymer sample be?
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