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A 11.7 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
Important information about Second Order Reaction, The reaction of CH3CH2NO2 + OH- --> H2O + CH3CHNO2 - is a second order and k at 273 K
Identify the oxidation-reduction reactions among the following: 1. Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)
Drag the flask and drop it on the lower half of the burette to connect them. Open the Data window and click on the flask. Click the Pushpin icon in the blue bar of the Data window to lock its display to the flask's contents.
At 0°C, the volume coefficient of expansion of mercury is α = 18×10-5 K-1, and its coefficient of compressibility is β = 5.32×10-6 bar-1.
For the reaction Cl2 + 2KBr -> 2KCl + Br2, calculate the percentage yield if 200 g of chlorine react with excess potassium bromide to produce 410 g of bromine
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
Predominant Organic Acids Present in Softwoods such as Pine, A wood chemistry course in which we are asked to explain the hierarchy of the organic wood acids present in softwood species like pine or spruce.
Nitrogen dioxide decomposes according to the reaction 2NO2(g) 2NO(g) + O2(g) where Kp = 4.48 × 10-13 at 25°C. What is the value for Kc?
2SO2(g) + O2(g) 2SO3(g) Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished.
A solution containing 10.mmol of CO3^-2 and 5.0 mmol. Of HCO3- is titrated with 1.0M HCL What total volume of HCL must be added to reach the second equivalence point?
Draw the structures of salicylic acid and aspirin. Circle and identify the functional groups present in each compound and sulfuric acid is a catalyst. What does that mean?
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