4.00 g Na2CO3 is dissolved in H20 and titrated with HCI. 48.0 mL of a HCl...
4.00 g Na2CO3 is dissolved in H2O and titrated with HCl. 48.0 mL of a HCl solution were required to titrate the Na2CO3 solution. What is molarity of HCl solution? Na2CO3(aq) + 2HCl(aq) --> 2NaCl(aq) + H2O(l) + CO2(g)
QUESTION 17 3.00 g Na2CO3 is dissolved in H2O and titrated with HCl. 28.0 mL of a HCl solution were required to titrate the Na2CO3 solution. What is molarity of HCl solution? Na2CO3(aq) + 2HCl(aq) --> 2NaCl(aq) + H2O(l) + CO2(g) 1.88 molar 3.21 molar 0.0417 molar 9.37 molar 2.59 molar 0.123 molar 0.553 molar 2.02 molar 8 points QUESTION 18 A metal object at 28.0 oC is heated by gaining 2.31 kJ of heat from the environment. The final...
A 0.1983 g sample of Na2CO3 was dissolved in 100.00 ml H20. That solution was titrated with 0.1531 M HCL as titrant. The PKa1 and PKa2 of carbonic acid (the conjugate acid of the carbonate ion) are 6.351 and 10.329, respectively. 1.) What is the initial pH of the sodium carbonate solution. 2.) What is the first equivalence point (in ml HCL)? What is the pH at 1st eq.? 3.) What is the second equivalence point (in ml HCL)? What...
3. How many mL of 0.450 M HCl are needed to titrate 25.0 mL solution of 0.250 M Na2CO3 solution? Na2CO3(aq) + 2HCl(aq) + 2NaCl(aq) + CO2(g) + H2O(l)
5.119 A 24.9-mL volume of hydrochloric acid reacts com pletely with 55.0 mL of aqueous Na2CO3. The reaction is 2HCI(aq) NaCO3(aq) CO2(g) + H20() + 2NaCl(ag) The volume of CO, formed is 141 mL at 27°C and 727 mmHg. What is the molarity of the HCl solution? 5.120 A 21.4-mL volume of hydrochloric acid reacts com- pletely with a solid sample of MgCO3. The reaction is 2HCI(aq)MgCO3(s) CO2(g) + H2O() + MgCl (ag) The volume of CO, formed is 159...
If 0.1800 g of impure soda ash (Na2CO3) is titrated with 15.66 mL of 0.1082 M HCl, what is the percent purity of the soda ash?Na2CO3(aq) + 2 HCl(aq) ? 2 NaCl(aq) + H2O(mc048-1.jpg) + CO2(g)
A 0.450 g sample of impure CaCO, (s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is CaCO,(s) + 2 HCl(aq) — CaCl, (aq) + H, 0(1) + CO2(g) The excess HCl(aq) is titrated by 4.85 mL of 0.125 M NaOH(aq) Calculate the mass percentage of Caco, (s) in the sample. mass percentage: The zinc content of a 1.03 g ore sample was determined by dissolving the ore in HCl, which reacts with the...
Na2CO3(aq) + 2 HCl(aq) → 2 NaCl(aq) + CO2(g) + H2O(l) What is the molarity of the HC] solution? Ans. : 3. A 0.2076 g of Na2CO3 required 20.35 mL of a hydrochloric acid solution for complete neutralization: Na2CO3(aq) + 2 HCl(aq) → 2 NaCl(aq) + CO2(g) + H2O(1) What is the molarity of the HC) solution? Ans. : CHML 201 Data Page FxRt. 055 Determination of the molar mass of a basic oxide, an example of a"back-titration."
A 0.450 g sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq) . The equation for the reaction is CaCO3(s)+2HCl(aq)⟶CaCl2(aq)+H2O(l)+CO2(g) The excess HCl(aq) is titrated by 9.05 mL of 0.125 M NaOH(aq) . Calculate the mass percentage of CaCO3(s) in the sample.
Please I need help with F AND G
Extra Credit: The Titration of Na2CO3 with HCl (25 pts) (You must show work to earn credit!) 1. A 0.1983 g sample of Na2CO3 was dissolved in 100.00 mL H20. That solution was titrated with 0.1531 M HCl as titrant. The pKai and pKaz of carbonic acid (the conjugate acid of the carbonate ion) are 6.351 and 10.329, respectively. (a) (2.5 pts) Write the equilibrium expressions for Kai and Kaz, using H2A,...