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During lab, we tested HCl and its diluted solution which resulted as pH1.14 and diluted one was pH 2.05. Another dilution was also done using weak acid HC2H3O2 which had pH 2.86 and the diluted one being pH3.45.
Which acid pH changed the most on dilution: HCl or HC2H3O2, and it saids to explain why considering the equilibrium occurring.
In the case of HCl, as you said, it was 100% ionized, either way. What happens to the percent dissociation for a weak acid when it becomes more dilute? Try calculating the percent dissociation for acetic acid at 0.1 M and 0.01 M and compare the results.
Addition of bromine to 130 mg of trans-stilbene gave 200 mg of meso-dibromide. Calculate the percentage yield.
Calculate the molarity for: A.0.5g CO2 in 652 g of water. B. 56g of NH3 in 500 g of water. C. 3.21 g of NaOH in 3405 ml of water.
Choose the most likely pattern for the crystal field diagram for the complex trans-[Ni(NH3)2(CN)4]2-, where CN- produces a much stronger crystal field than does NH3.
What mass of Mg(OH)2 will dissolve in 1.0 L of 0.050 mol/L solution of MgSO4(aq)
In the determination of the MnO2 content of an ore, a 0.5261 g of it was treated with 0.7049 g of Na2C2O4 in an acidic medium. After the reaction went to completion, 30.47 mL of 0.02160 M KMnO4 was needed to react with excess oxalate. Calculate th..
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine: 1) Cl2 ? 2 Cl (fast, reversible) 2) Cl + CHCl3 ? HCl + CCl3 (slow) 3) Cl + CCl3 ? CCl4 (fast) What rate law does this mechanism predict
The first ionization energies of As and Se are 947 and 941kJ/mol, respectively. Explain these values in terms of their electron configurations.
what is the difference between cholesterol and
The standard enthalpy of reaction, DH°rxn for C2H2(g) + 2 H2(g) ® C2H6(g) is -311.5 kJ mol-1. Determine the value of DE°rxn for this reaction
patients suffering from respiratory disorders are often treated in oxygen tents in which the atmosphere is enriched in
certain temperature and pressure, one liter of CO2 gas weighs 1.85 g. What is the mass of one liter of CH4 gas at the same temperature and pressure?
The methyl benzoate and acetanilide react with HNO3, H2SO4, and glacial acetic acid. Need to know the possible products and then the one that actually forms.
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