Question is solved using basic concepts of reaction spontaneity.
Consider the following reaction at 298 ! Mg () + 2H+ (aq) + 2Cl(a) = Mg²+...
You have the following reaction: Mg(s) + 2 HCl(aq) + Mg2+(aq) + H2(g) + 2Cl(aq). Answer the following questions with the data given. The hydrogen gas is collected above the aqueous acid solution in an inverted graduated cylinder. Moles of Mg metal: Temperature of gas Atmospheric pressure: 0.0033mol 28.0°C 1.02 atm. 3. What is the pressure of the hydrogen gas in the graduated cylinder?
Consider the reaction: Mg(OH)2 (s) = Mg(aq) + 2 OH- (aq) At equilibrium, a 1.0 L reaction vessel contains 5.3 moles of Mg(OH)2 and concentrations of 0.0080 M and 0.010 M of Mg and OH respectively. What is Kc for this equilibrium? Consider the reaction: N2 (g) + 3 Br(g) = 2 NBr) (g) At equilibrium, the concentrations of Nz and Bra are 0.34 M and 0.70 M respectively, and the concentration of NBrs is 0.090 M. What is Kc...
Consider the following half-reactions: Half-reaction E° (V) Cl2(g) + 2e - →2Cl(aq) 1.360V Ni2+(aq) + 2e Ni(s) -0.250V Mg- (aq) + 2e → Mg(s) -2.370v (1) The weakest oxidizing agent is: enter formula (2) The strongest reducing agent is: (3) The strongest oxidizing agent is: (4) The weakest reducing agent is: (5) Will Cl(aq) reduce Mg2+(aq) to Mg(s)? (6) Which species can be reduced by Ni(s)? If none, leave box blank.
Consider the following reaction: 2 HCl(aq) + 1 Mg(s) → 1 MgCl2(aq) + 1 H2(g) ΔH°rx = -465.8 kJ Determine the amount of heat released, in kJ, of each of the following scenarios. Give each answer to 2 decimal places. (a) 10.69 g of Mg(s) is reacted with excess HCl(aq)· (c) 1.17 g of H2(g) is produced from the reaction after completion. (b) Excess Mg(s) is added to 440 mL of 0.996 M of HCl(aq)· (d) 580 mL of a...
QUESTION 1 Consider the following chemical reaction: Mg(s) + 2HCl(aq) – MgCl2(aq) + H2(g) Which of the following changes will decrease the rate of this reaction? Adding more solid Mg. Adding a catalyst. Decreasing the pressure of H2. Decreasing the temperature. Increasing the concentration of HCI.
QUESTION 1 Consider the following chemical reaction: Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) Which of the following changes will decrease the rate of this reaction? Adding more solid Mg. Adding a catalyst. Decreasing the pressure of H2. Decreasing the temperature. Increasing the concentration of HCI.
Consider the following reaction: Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (g) ΔHrxn = –4.6 × 102 kJ a. Is this reaction endothermic or exothermic? Circle one. [1] b. How much heat is evolved when 1.37 g of Mg are dissolved in excess HCl? [5] c. If 1.37 g of Mg are dissolved in enough HCl to make 250.0 mL of solution in a coffee-cup calorimeter, what is the final temperature of the solution? (Assume density...
The following chemical reaction occurs in a basic solution. Mg2+(aq) + MnO2(aq) + OH−(aq) → Mg(s) + MnO4−(aq) + H2O(l) How many moles of electrons are transferred when the equation is balancedusing the smallest whole-number coefficients?
Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21"(aq) 0.535V 2H+ (aq) + 2e - → H2(g) 0.000V Cr3+(aq) + 3e —— Cr(s) -0.740V The strongest oxidizing agent is: enter formula The weakest oxidizing agent is: The weakest reducing agent is: The strongest reducing agent is: Will 12(s) reduce Cr3+(aq) to Cr(s)? — Which species can be reduced by H2(g)? If none, leave box blank. Use the References to access important values if needed for this question....
Consider the following reaction: Mg2+(aq) + Cu(s) Cu2+(aq) + Mg(s). In this reaction, Mg2+(aq) is: Attempts remaining: 2 How many milliliters of 0.020 M Ca(OH)2 are required to neutralize 75.0 mL of 0.030 M HCI?! Attempts remaining: 2 What volume of solution would be created when 35.00 g of NaOH make a 2.0 M solutions? Attempts remaining: 2