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Problem- Draw a lewis structure for each of the following species, again, assign charges where appropriate. A.) H- B.) CH3- C.) CH3+ D.) CH3 E.) CH3NH3+ F.) CH3O- G.) CH2 H.) HC2- I.) H2O2
Please show the entire work. I am thanking you in advance
What concentration of monobasic and dibasic sodium phosphate should be used to get pH 7.4
Sodium chloride entirely ionizes when dissolved in water. Which of the following statements concerning aqueous NaCl is correct
sodium peroxide reacts with water to form sodium hydroxide and oxygen. write a balanced equation for the reaction and
If the standard enthalpy of combustion of octane, C8H18(l), at 298 K is -5471 kJ x mol-1, calculate the standard enthalpy of formation of octane. The standard enthalpies of formation of carbon dioxide and liquid water are -393.51 and -285.83 kJ x ..
Problem- Cumene is known to cantain only hydrogen and carbon. The burning of a sample of cumene produced .320 moles of co2 and .215 moles of water. What is the empirical formula
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C4H10O2: ? 1.36 (3H, d, J = 5.5 Hz); ? 3.32 (6H, s); ? 4.63 (1H, q, J = 5.5 Hz)
A gaseous mixture containing 0.150 mol fraction of carbon tetrachloride (CCl4) and 0.850 mol fraction of dry air is initially at 65.0°C
MgO can be formed by combustion of solid MgO. Write a reaction scheme for the process. What operational sign must entropy change by the reaction expected to have (please explain)
The data obtained are 20.36, 19.98, 20.26, 20.18, 19.72, 19.86% Cl. (a) what is the standard deviation of this data. (b) find the 90% and 99% confidence intervals for the percentage of chloride in the sample. Must show work for credit
Describe all the energy changes which must be considered in the solution process
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m.
What is the pH change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.140 M with no change in volume?
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