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Any help on how to do or start this problem? Calculate the change in pH of rainwater resulting from an increase in the P of CO2 from 10^-3.5 atm to 10^-3.0 atm due to fossil fuel emissions.
In the NMR there is a peak at: singlet(1 Hydrogen at 9.5), triplet( 2 hydrogens at 2.5), quintet(2 hydrogens at 2), quintet or sextet( not clear)(4 hydrogens at 1.3), and triplet ( 3 hydrogens at 1).
The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 560g/mol. What is the molecular formula of the compound?
calculate the grams of solute needed to prepare each of the following solutions: a)2.00 L of a 5.00 M NaOH solution. b) 325 mL of a .100 M CaCl2 solution. c) 15.0 mL of a .500 M MiNO3 solution.
A stock solution of 1.24 x 10^-4 M dye is available in the lab. What volume of the stock solution must be transferred to a volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^-5 M
A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water, flask, and metal is 268.5 g. If the mass of the flask is 139.3 g and the density of water ..
A mixture initially contains and in the following concentrations: a= 0.700M , b= 1.25M , and C= 0.550M . The following reaction occurs and equilibrium is established
How many days would be required for a dose of Cu-64 to decay to 1.0% of its original concentration?
The following molecular equation represents the reaction that occurs when aqueous solutions of silver nitrate and chromium(III) iodide are combined.
Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.
the rate constant for the second order -reaction is NOBr(g)------>NO(g)+1/2Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid. Assume water has a density of 1.00 g/cm3 at the temperature of the measurement.
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