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Question- Calculate the percent by mass of the solute propylene glycol in a solution generated by mixing 1.46 kg of C3H8O2 with 7120 mL of the solvent water.
Compute the correct values
What is the concentration of the HNO3 solution? Your response differs from the correct answer by more than 10%. Double check your calculations. M (b) How many moles of NaOH were in excess after the first addition?
The vaporizaation for the compound is 24.75 kJ/mol. Calculate the heat required to convert 50.0 g of freon 11 from liquid at -50 C to a gas at 50 C.
write balanced net ionic equations for the following electrolysis reactions using platinum electrodes
If you had 6.02 x 10^23 dollars, and could spend it at 1 billion per second for your entire life (75 years), what approximate percentage of your original money would you have left?
calculate [H30] and [OH] in a 200 mL solution in which 0.500g of HCL is dissolved
In the molecular orbital model of benzene, the six p-orbitals combine to form how many molecular orbitals
Explain the increasing boiling point as you move from methane to ammonia to water be explicit as to what forces are acting on these molecules and how you know.
If 18.7 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia
One mole of an ideal monatomic gas initially at 300K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. Calculate change in E, q, w, and change in H and the final temp if the expansion is carried out according to each of ..
Calculate Kc for the equilibrium: NO(g) + 1/2 O2(g) NO2(g) if Kp= 1.3 X 10^6 at 298 Kelvin
How many grams of Na2EDTA·2 H2O (FM 372.23) should be mixed with 2.07 g of Ca(NO3)2·2 H2O (FM 200.12) in a 500 mL volumetric flask to give a buffer with pCa2+ = 9.00 at pH 9.00?
What is the concentration of KMnO4 when you mix 2 mL of .160 M KMnO4 with 10 mL of .250 M oxalic acid. Assuming that it took 120 s to observe the color change in the reaction, what is the rate of the reaction
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