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Question- What is the mass percent concentration of the following solutions?
a) Dissolve 0.595mol of citric acid, C6H8O7, in 1.00 kg of water.
b) Dissolve 0.135mg of KBr in 5.00 mL of water. c)Dissolve 5.60g of aspirin, C9H8O4, in 145 g of dichloromethane, CH2Cl2.
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A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains
Back titration with .02127 M Zn2+ at pH 5 reqired 23.54ml to reach the xylenol orage end pt. a 2.00ml sample of unknown was passed thru an ion-exchange column designed to absorb co2+. the Ni2+ that passes thru ion-exchange column was treated with ..
Calculate the concentration of the Na2S2O3 solution if 30.70 mL of a 0.2210 M I2 solution react exactly with a 100.0 mL sample of the Na2S2O3 solution.
Why is the Beer - Lambert law in units of absorbance rather than in units percent transmittance
Name one analytical technique you can use to determine if your product is the E,E isomer and not the E,Z or Z,Z isomer.
a beaker of an acetic acid with 1.00times102ml buffer with a ph of 5.000 is sitting on a bench top. it is found that
100ml of a 0.4 mol/L acetic acid is mixed with 20ml of a 1.8 mol/L NaOH. Calculate the pH of this buffer (pka acetic acid = 4.76). What is the pH of 100mL of a solution made using 5 mL of 1 M Na2HPO4 and 5mL of NaH2PO4
Pretend 32.15 mL of NaOH of the standardized base is required to titrate a 20.00 mL sample of a 1.000 to 10.000 dilution of the mystery acid. What is the concentration of the acid (before dilution)
When the cations Na+, K+, Rb+, Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy?
if the solubility of AgNO3 at 40oC is 211 g per 100 g of water, what mass of this solute can be dissolved in 350 g of water at the same temperature?
What is the oxidation half reaction, Reduction half reaction, and overall reaction for Chloride + permanganate --->
Consider the voltaic cell , which is based on the following cell reaction. Zn(s) + Cu2+(aq) Zn2+(aq) +Cu(s) Under standard conditions
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