Answered: 5. What picks up the electrons from a…

5. What picks up the electrons from a metal which allows them to lissolve in water? H20 molecules H30+ ions any positive ions Oany negative ions

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 82AP

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Use the appropriate tables to calculate H for (a) the reaction between MgC03(s) and a strong acid to give Mg2+(aq), CO2(g), and water. (b) the precipitation of iron(III) hydroxide from the reaction between iron(III) and hydroxide ions.
ENB Assume the densities of all solutions are 1.0 g/ml and their specific heat capacities 4.184 J/g. Experime The enthalpy change of neutralization Part I 3 NH4OH(aq) + HCl(aq)- NH4CI(aq) + H2O(E) 2.1 Equation of reaction: 2.0 M HCI 2.0 M NH.OH Volume Number of moles 0.05 25 ml 25 ml 0.05 Temperature 15 °C 15 °C eaction Initial Temperature,T Final Temperature, T Change in temperature, AT 15 °C 16.5 °C 1.5 °C Calculation of q- in J (q- = - qsa) 2.2 What is the enthalpy change (AH) in kJ.mol, when 1 mol of acid is 2.3 neutralized?
11. How does Sb3N5(s) break up in solution? Write subscripts and superscripts as normal numbers and do not include spaces in your answer. Do not include states like (aq) or "1" in front of single atoms or charges. For example, the answer for NiCl3(s) would be Ni3++3Cl- For example, the answer for Sb3(PO4)5(s) would be 3Sb5++5PO43- Possibly relevant polyatomic ions: CN-,OH-, NO3-, NO2-, ClO3-, ClO4-, CO32-, SO42-, CrO42-, Cr2O72-, PO43-, PO33- Screen Reader User: For example, the answer for NiCl3(s) would be Ni3++3Cl minus For example, the answer for Sb3(P O4)5(s) would be 3Sb5++5PO43 minus Possibly relevant polyatomic ions: CN minus,O H minus, N O3 1 minus, N O2 1 minus, Cl O3 1 minus, Cl O4 1 minus, C O3 2 minus, S O4 2 minus, Cr O4 2 minus, Cr2 O7 2 minus, P O4 3 minus, P O3 3 minus
10. How does Sn O2(s) break up in solution? Write subscripts and superscripts as normal numbers and do not include spaces in your answer. Do not include states like (aq) or "1" in front of single atoms or charges. For example, the answer for NiCl3(s) would be Ni3++3Cl- For example, the answer for Sb3(PO4)5(s) would be 3Sb5++5PO43- Possibly relevant polyatomic ions: CN-,OH-, NO3-, NO2-, ClO3-, ClO4-, CO32-, SO42-, CrO42-, Cr2O72-, PO43-, PO33- Screen Reader User: For example, the answer for NiCl3(s) would be Ni3++3Cl minus For example, the answer for Sb3(P O4)5(s) would be 3Sb5++5PO43 minus Possibly relevant polyatomic ions: CN minus,O H minus, N O3 1 minus, N O2 1 minus, Cl O3 1 minus, Cl O4 1 minus, C O3 2 minus, S O4 2 minus, Cr O4 2 minus, Cr2 O7 2 minus, P O4 3 minus, P O3 3 minus
How does Sn(S O4)2(s) break up in solution? Write subscripts and superscripts as normal numbers and do not include spaces in your answer. Do not include states like (aq) or "1" in front of single atoms or charges. For example, the answer for NiCl3(s) would be Ni3++3Cl- For example, the answer for Sb3(PO4)5(s) would be 3Sb5++5PO43- Possibly relevant polyatomic ions: CN-,OH-, NO3-, NO2-, ClO3-, ClO4-, CO32-, SO42-, CrO42-, Cr2O72-, PO43-, PO33- Screen Reader User: For example, the answer for NiCl3(s) would be Ni3++3Cl minus For example, the answer for Sb3(P O4)5(s) would be 3Sb5++5PO43 minus Possibly relevant polyatomic ions: CN minus,O H minus, N O3 1 minus, N O2 1 minus, Cl O3 1 minus, Cl O4 1 minus, C O3 2 minus, S O4 2 minus, Cr O4 2 minus, Cr2 O7 2 minus, P O4 3 minus, P O3 3 minus
com/courses/22672/quiz2es/68142/laRU e G My Policy Details O Strongnet l-Notes... P PowerSchool P PowerTeacher IEP Anywhere Claim Status Form Question 2 23.79g of solid sodium hydroxide, NaOH is added to 87.5 ml of a 1.97M solution of iron(Il) chloride, FeC13. This causes iron(III) hydroxide to precipitate out of solution. The reaction is shown below. Determine the limiting reagent then find the mass of the iron(III) hydroxide precipitate. 3NAOH(s) + FeCl3 (aq) - Fe(OH);(s) + 3NaCl(aq) Question 3 The mixture of which two solutions will result in a precipitate being formed? O LIOH(aq) + Na2SO4(aq) O BaCl2(aq) + NAOH(aq) O Pb(NO3)2(aq) + NaC2H3O2(aq) O Al(NO3)2(aq) + BaCl,(aq) O Al(NO3)2(aq) + LIOH(aq) Question 4 Solid H,S is added to 280 ml of a 0.450M CaCl2 solution until no more Cas is formed (see reaction below). At the end of the experiment 5.50 g of CaS is formed. What is the percent yield for the reaction? Molar Masses: Ca (40.08), S (32.07), CI (35.45) CaCl2 (aq) + H,S(s) 2HC(aq)…
Reese is making a 7 M Thorium solution in a 2 L volumetric flask. The dilution is surprisingly endothermic. Impatiently, she fails to wait for the solution to warm before making it up to the mark. How would this effect the concentration of the resultant solution? Explain
Consider the following data on some weak acids and weak bases: name K₂ formula HNO₂ 4.5 x 104 acetic acid HCH,CO₂ 1.8x105 acid nitrous acid solution 0.1 M HONHYBT 0.1 M KBr Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. 0.1 M KCH₂CO₂ 0.1 M C₂H₂NHCI PH choose one choose one choose one base choose one K name formula hydroxylamine HONH₂ 1.1 x 107 pyridine CH₂N 1.7×10
ALEKS Canvas CSU O ACIDS AND BASES Identifying acids and bases by their reaction with water compound H CIO, K CIO, KOH ΗΝΟ, A ALCKS Time Out Some chemical compounds are listed in the first column of the table below. Each compound is soluble in water. Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. The important chemical species that would be present in this written in the second column of the table. Use the checkboxes to classify each compound. Explanation important species present when dissolved in water H₂O, CIO, H₂O K, CIO, H₂O K, OH.H₂O Η Ο΄, ΝΟ, ΗΝΟ, Η, Ο Check www-awu.aleks.com O ALEKS Hunter Stephens - Learn type of compound (check all that apply) ionic molecular strong weak strong weak acid base base acid CO 0 0 0 0 X 0 G 0 SUD blome bartleby 0 0/5 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use
The neutralization of a strong acid and strong base has an enthalpy change, ∆H°, = -55.9 kJ/mol. The net ionic equation for this reaction is H⁺(aq) + OH⁻(aq) ⇌ H₂O(l) which is the reverse of the autoionization of water, and therefore ∆H° for the autoionization of water = +55.9 kJ/mol. Kw for the autoionization of water is 1.0 × 10⁻¹⁴ at 25°C. Distilled water has a [H⁺] = 1.0 × 10⁻⁷ M and a neutral pH of 7.0. Calculate the neutral pH of distilled water at 95°C.
Acidic water can be treated with basic substances to increase the pH, although such a procedure is usually only a temporary cure. Calculate the minimum mass of lime, CaO, needed to adjust the pH of a small lake 1V = 4 * 109 L2 from 5.0 to 6.5. Why might more lime be needed?
Explain why a dialysis solution must have a low sodiumion concentration if it is designed to remove excesssodium ions from the blood.