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What volume of glacial acetic acid (1.06g/ml) and what weigh of solid potassium acetate are required to prepare 5 liters of 0.2m acetate buffer, ph 5.0?
what is the correct cell notation for the reaction shown below?3zn2aq 2als rarr 2al3aq
What is the balanced net ionic equation. 2Nh4Cl (aq) + Ba(OH)2 (aq) --> 2H2O (l) + BaCl2 (aq) + 2NH3 (aq)
What total volume of gas forms if it is collected over water at a temperature of 25 ^\circ {\rm C} and a total pressure of 753{\rm mmHg} ? of a 12.5g of Ag(s) 2g2O(s)-> 4Ag(s) + O2
Compare the primary, secondary, and tertiary structures of a protein with the structure of a telephone
twenty grams of a solute are added to 100g of water at 25c. the vapor pressure of pure water is 23.76 mmhg the vapor
The dispersion of a diffraction grating, such as the one shown at the right, is the angle of separation per ?m of wavelength. It depends on the order of the diffraction (n),
Draw the best Lewis structure of CO32-. In this compound, the C atom is attached to three O atoms, and there are no O-O bonds
Calculate the pH of this solution. 2. Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl. 3. Calculate the pH after 0.20 mol of NaOH has been added to the original buffer solu..
how many calories are required to warm 15.0 g of water from 75 c to 100.0 c and convert it to steam at 100.0 c? the
If wave (a) has a wavelength of 1.0 m and a frequency of 3.0*10^8 cycles, what are the wavelength of wave
A 4.10 g nugget of pure gold absorbed 274 J of heat. What was the final temperature of the gold if the initial temperature was 27.0°C? The specific heat of gold is 0.129 J/(g·°C).
Equilibrium constant for the cell reaction is (A)100 .32/0.0591 (B)100.32/0.0295 (C) 100.26/0.0295 (D) e0.32/0.295
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