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Succinic acid, an intermediate in the metabolism of food molecules, has molecular mass = 181.1 amu. When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000M NaOH solution was required to neutralize the acid. How many acidic hydrogens are there in a molecule of succinic acd?
Use the stoichimetery of the equation and the dilute titanium 4 chloride solution for the following: How many moles of solid product can be formed?
What is the emf of this cell when [Ni2+]= 3.00 M and [Zn2+]= 0.100 M ? What is the emf of the cell when [Ni2+]= 0.190 and [Zn2+]= 0.820?
This compound, C5H10, gives a negative test for C-C double bonds and gives only one monobromo substitution product, C5H9Br. Propose a structure for this compound
The effective nuclear charge is approximated as the total nuclear charge minus the number of core electrons. Thus, effectively, core electrons decrease the nuclear charge felt by the valence electrons because they are between the nucleus and the v..
what is the term for a solution whose concentration has been accurately determined usually three or four significant digits? normal solution standard soluatoin stock soluation
What is molecular weight of a gas that effuses 1/4 as rapidly as CH4? I need to know how to SOLVE the problem. The answer should be 256.
A mixture of gases contains 10.20g of N2 , 1.80g of H2, and 8.15 of NH3 . The total pressure of the mixture is 1.90atm. What is the partial pressure of N2? What is the partial pressure of H2. What is the partial pressure of NH3.
A solution containing 26.50mg of an unknown protein per 29.5mL solution was found to have an osmotic pressure of 3.75torr at 13C. What is the molar mass of the protein
A patient is given 0.055mg of technetium -99m, a radioactive isotope with a half-life of about 6.0 hours.
if 3.30 moles of ethane c2h6 undergo combustionaccording to the unbalanced equation c2h6o2--gt co2h2o how many moles of
a sample of 1.0 mole of a perfect gas with cp= 20.8 JK -1 is initially at 3.25 atm and 310 k. It undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. calculate the final volume and temperature and the work done
a gas company in massachusetts charges $2.80 for 15ft^3 of natural gas at 20 degrees C and 1 atm. Calculate the cost of heating 200mL of water from 20 degrees C to 100 degrees C.
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