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- 7b. Please helpThe following salts were added to a beaker of distilled water: NaCl (NH2)2CO; Ca(NO;)2 Which of the following products will precipitate out of solution? O NH CI O CaCO, FONTHN O O NaCO;¿Cuál es el porcentaje en volumen cuando preparamos 25 ml de ácido nítrico en 800ml de la solución?
- Complete the reaction scheme 1) Mg, éter A HBr H2SO4 КMnОд сonc. В calor A 2) 3) H30*A fertilizer railroad car carrying 34,300 gallons of commercialaqueous ammonia (30% ammonia by mass)tips over and spills. The density of the aqueous ammoniasolution is 0.88 g>cm3. What mass of citric acid,C(OH)(COOH)(CH2COOH)2, (which contains three acidicprotons) is required to neutralize the spill? 1 gallon = 3.785 L.Solubility of CrF3 in water is 0.120 g/L at 25 oC. What is the molar concentration of F- ion in the solution at the same temperature? A.) 3.30 x 10-3 B.) 3.97 x 10-11 C.) 1.10 x 10-2 D.) 2.80 x 10-3 E.) 3.10 x 10-4
- HBR, O2, CH3OH all have comparable molecular masses. List the dominant type of IMF for the pure substances, then rank the strength of each compound based on IMFs within the samples. (1 = strongest 2= in between 3 = weakest ) Substance IMF Relative Strength HBR O2 CH3OH9 Complete the following reactions by briefly explaining in each case the type of reaction taking place. ii. H₂ Pd/C ??? ??? + oro.o OH + OHWhen the reversible reaction HC2H;O2 (aq) E> H(aq) + C2H3O2 (aq) is at equilibrium at room temperature, pH of the reaction mixture is 5. What will be the change in pH when you add a large amount of NaOH (aq) to the reaction mixture? a) pH will not change because NaOH is not a part of the reaction equation. b) pH will not change because acetic acid and NaOH form a buffer. c) pH will increase because NaOH will completely neutralize acetic acid. d) pH will decrease because NaOH will completely neutralize acetic acid. In the reversible reaction A (aq) + B(aq) E > C(aq), reactant A is very expensive. What are two ways to get it to react as fully as possible to form as much C as possible? a) remove C as it forms, and use an excess of A b) add another reactant that will form a precipitate with B c) remove C as it forms, and use an excess of B d) add another reactant that will form a precipitate with A
- The following reaction has a value of AH° that would properly be labelled as AşH°. 1/2N2(g) + 3/2H2(9) – NH3(9) O True O FalseWhat is the Kc expression for the following reaction? 2 NO2(g) + H2O(1) --> HNO2(aq) + HNOglaq) [[HNO2(aq)] [HNOglaq)] [NO2(g)]^2 OHNO,(aq)] [HNO3(aq)] [NO2(g)]^2 (H20(10) (HNO2(aq)) [HNOglaq)] 2 [NO2(g]]^2 [H2O(1) [HNO2(aq)) + [HNO3laq)] 2 INO2(g)] + [H20()]le Multiple Choice Question E MasteringChemistry: Ch 10.1 - 10.6 HW E Weeks 11 & 12 (10/26 - 11/6) - ZCHM131. CentralLink | Central Michigan UniversitySEE MORE QUESTIONS