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Calculate the amount of heat required to raise the temperature of a 65-g sample of water from 32°C to 65°C. (The specific heat capacity of copper is 4.184 J/g°C.)
how does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength
Explain what volume of 70.0 mM potassium maleate buffer, pH 6.5, would be required to make 0.100 liters of 5.00 mM maleate buffer containing 1.80 M ammonium nitrate
Calculate the molar concentration of NaNO3 and the mass percent of NaNO3 in the solution. What is the mole fraction of NaNO3 in the solution?
Explain which gas has the largest molecules. Explain which gas has the most nearly ideal gas behavior at Standard Temperature and Pressure
A buffer, consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system.
geologists can estimate the age of rocks by their uranium-238 content. the uranium is incorporated in the rock as it
Question- Lets say I have an aldehyde and I realize the carbonyl group would prevent a specific reaction unless I use a protecting group. Could I use as a first step HOCH2OH/H+ as a protecting group or would HOCH2CH2OH/H+ be better? Would they bot..
what particle or type of radiation needs to be included to balance the equation? 234Th ? ? + beta particle? Please explain why you chose your particular answer
solution of water (Kf = 1.86^ C/m) and glucose freezes at - 2.55^ C. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 ^ C.
Draw the structure of the isomer of C4H9Cl that is least reactive in an SN2 reaction. Do not consider stereochemistry.
Identify which of the following solutions may act as buffers by placing a check in the box next to the mixture. A. HNO3 , NaNO3 D. H2SO4, NaHSO4
How many grams of nickle would be electroplated by passing a constant current of 7.2(A) through a solution of NiSO4 for 90.0 min
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