Iodine, I2I2, reacts with aqueous thiosulfate ion in neutral solution according to the balanced equation I2(aq)+2S2O2−3(aq)→S4O2−6(aq)+2I−(aq)I2(aq)+2S2O32−(aq)→S4O62−(aq)+2I−(aq).
How many grams of I2 are present in a solution if 33.65 mL of 0.135 M Na2S2O3 solution is needed to titrate the I2 solution?
Iodine, I2I2, reacts with aqueous thiosulfate ion in neutral solution according to the balanced equation I2(aq)+2S2O2−3(aq)→S4O2−6(aq)+2I−(aq)I2(aq)+2S2O32−(aq)→S4O62−(aq)+2I−(aq)....
Consider the following balanced redox reaction. 2S2O32- + I2 → 2I- + S4O62- How many moles of I2 can be consumed by 1.45 mL of 0.15 M Na2S2O3?
Aqueous calcium chloride reacts with aqueous silver nitrate according to the following balanced chemical equation: CaCl₂(aq) + 2AgNO₃(aq) => 2AgCl(s) + Ca(NO₃)₂(aq) a. How many moles of AgCl(s) are made if 0.557 L of 0.235 M CaCl₂ react with excess AgNO₃? b. How many grams of AgCl are made?
If 770 mL of 0.701 M aqueous HClO4 reacts stoichiometrically according to the balanced equation, how many milliliters of 0.574 M aqueous Ba(OH)2are required? Ba(OH)2(aq) + 2HClO4(aq) ? Ba(ClO4)2(aq) + 2H2O(l)
6. Calcium oxide reacts with nitric acid to produce calcium nitrate and water. How many grams of calcium oxide are required for complete reaction with 30.0 mL of 0.587 M nitric acid? The molar mass of calcium oxide is 56.077 g/mol. (Hint: start by writing the balanced equation for the reaction.) 7. A sample contains an unknown amount of succinic acid, H2CHO. If 0.3540 g of the sample requires 42.70 mL of 0.1000 M NaOH to neutralize the H2C,H404 completely,...
Aqueous hydrochloric acid reacts with magnesium to produce hydrogen gas according to the balanced equation below 2HCl (aq) + Mg (s) = MgCl2 (aq) + H2 (g) If 250.0 mL of 3.00 M HCl is combined with 9.92 g Mg, what volume of hydrogen gas can be produced? Assume the temperature and pressure of the gas are 25oC and 0.988 atm, respectively. ( R=0.08206 )
Zinc metal reacts with hydrochloric acid according to the balanced equation: 2HCl (aq) + Zn (s) → ZnCl2 (aq) + H2 (g) When 0.103 g of zinc is combined with enough HCl to make 50.0 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, resulting the temperature of the solution from 22.5oC to 23.7 oC. Find ΔHrxn for this reaction as written. The density, and the specific heat of the solution are 1.00 g/mL and 4.184 J/g...
In aqueous solution, hypobromite ion, BrO -, reacts to produce bromate ion, BrO 3-, and bromide ion, Br -, according to the following chemical equation. 3 BrO-(aq) → BrO3-(aq) + 2 Br-(aq) A plot of 1/[BrO -] vs. time is linear and the slope is equal to 0.056 M -1s -1. If the initial concentration of BrO - is 1.0 M, how long will it take one-half of the BrO- ion to react? 12 s 18 s 5.6 × 10-2...
Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g) When 0.104g of Zn(s) is combined with enough HCl to make 54.5 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 22.4 Celcius to 24.7Celcius. Find the delta Hrxn (in kJ/mol) for this reaction as written. (Use 1.0g/mL for the density of the solution and 4.18 J/g *Celcius as the specific...
Zinc metal reacts with hydrochloric acid according to the balanced equation: 2HCl (aq) + Zn (s) ® ZnCl2 (aq) + H2 (g) When 0.103 g of zinc is combined with enough HCl to make 50.0 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, resulting the temperature of the solution from 22.5oC to 23.7 oC. Find DHrxn for this reaction as written. The density, and the specific heat of the solution are 1.00 g/mL and 4.184...
Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn(s) + 2HCl(aq) --> ZnCl_2(aq) + H_2(g) When 0.124 g of Zn(s) is combined with enough HCl to make 51.3 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.5 C to 23.9 C. Find Delta Hrxn for this reaction as written. (Use 1.0 g/mL for the density of the solution and 4.18 J/g *C as the specific...