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You have two solutions of the same molar concentrations; one contains lactic acid, the other sodium lactate. You want to use these solutions to make a buffer that has a pH of 5.00. Calculate the ratio of lactate and lactic acid required. The pKa of lactic acid is 3.86
How much heat is absorbed when 45.00 g of carbon reacts with SO2 to produce CS2 and CO according to the following reaction? 5 C (s) + 2 SO2 (g) ? CS2 (l) + 4 CO (g) ?H° = 239.9 kJ
a sample of 57 grams of h2o with a temperature of sixteen degree celsius is combined to 260 grams of h2o at 90 degree
Calculate the internal energy of He, Ne, and Ar under standard thermodynamic conditions. Do you need to redo the entire calculation
Calculate the mass deficiency in amu, binding enery in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291 amu.
how many total moles of gas are produced? B. If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced? C. Express your answer using two significant figures. How many grams OF N2are produced in th..
100.0g of Cl2O7 are mixed with excess of water obtaining 136.0g of periodic acid according to the following reaction. Determine the percent yield of HClO4.
A toxic cloud covered Bhopal, India, in December 1984, killings thousands of people. The cloud was created when water leaked into a storage tank of methyl isocyanate, a chemical used in the production of potent pesticides
The volume of a sample of chlorine gas is 98.6 mL at 31.4 C and 769.6 mmHg. What volume will the sample occupy at 23.2 C and 748.8 mmHg? Please show how to work out the problem if you can
What is the density of the air in the hot-air balloon and is it less dense or more dense with the density of air at STP
consider the three flasks in the diagram below. assume the temperature is held constant. when the stopcocks are closed
Alkenes: Reaction of (2Z)-3,4-dimethylpent-2-ene with Br2 and CCl4 Draw the product formed when the structure shown below undergoes reaction with Br2 in CCl4.
Consider a particle that is confined by a one-dimensional quadratic (harmonic) potential of the form U9x)=Ax^2 (where A is a positive real number). A. What is the Hamiltonian of the particle(expressed as a function of velocity v and x)?
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