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Problem- Find the pH of the equivalence point and volume (mL) of 0.200 M HCL needed to reach the equivalence point in the titration of 65.5 mL of 0.234 M NH3.
Solve the above the problem in detail no word count
A 14.7-g ice cube is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice. Determine how much heat is absorbed by the melting ice and then use q = mC?T to calculate the temperature change of the..
equal mass of water and ethylene glycol are mixed. what is the vapor pressure of this mixture at 100.c? the molar
The heat effect of the neutralization reaction NaOH(aq) + HCl(aq) is measured in an open adiabatic solution calorimeter (not a coffee cup calorimeter) The heat capacity of the calorimeter itself is 456 J/K.
Given the following balanced chemical equation, if 345 g of I2 are formed, how many g of Cl2 had to react? 2 FeI2 + 3 Cl2 ? 2 FeCl3 + 2 I2
Nicotine is responsible for the addictive properties of tobacco. Assume Kb1= 1.05 x 10^-6 and Kb2= 1.32 x 10^-11. Determine the pH of a 0.00120 M solution of nicotine.
How many different signals are expected for this molecule? That is, how many magnetically different hydrogens are present in the molecule? This is in general determinted by differences in bonding, and distance to an electronegative group.
Draw clear representations of the two chair conformations of trans 2-methylcyclohexanol. Circle the hydrogen atoms which are anti to the hydroxyl group.
Assume that you are carrying out the dehydration of 1-methylcyclohexanol to yield 1-methylcyclohexene
What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and H+(aqu) in the appropriate blanks.
A helium gas cylinder at 25 Celcius is used to fill balloons and has a total volume of 43.8 L and a pressure of 1.51 x 10^4 kPa. how many moles of helium are in the tank
a bag contains a mixture of copper and lead bbs. the average density of the bbs is 9.90 assuming that the copper and
what is the energy of a photon emitted from an electron in a hydrogen atom when it jumps from the n 7 to the n 3
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