If 25.0 mL of 1.5 M HCl is combined with 0.11 g Mg, what volume of hydrogen gas can be produced? Assume the atmospheric pressure is 761.7 mmHg and temperature of solution is 28.6。C
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Using the equation: Mg(s) + 2HCl(aq) ———> H2(g) + MgCl2(aq), complete the worksheet. Prelab Questions . A student following the procedures in this lab exercise collected the following data: mass Mg, g 0.0243 initial syringe volume, mi 0.8 final syringe volume, ml 26.3 barometric pressure, tor 748 temperature, K 293.5 Calculate the value of the universal gas constant, R. 2. What would be the volume of hydrogen gas produced by the reaction of 0.100 g of magnesium metal, collected at...
Using the equation: Mg(s) + 2HCl(aq)——> H2(g) + MgCl2(aq) complete the prelab. Prelab Questions 1. A student following the procedures in this b i collected the following data mass Mg. 0.0243 initial syringe volume, ml 0.8 final syringe volume, ml barometric pressure, torr temperature, 293.5 Calculate the value of the universal gas constant, R. 26.3 748 2. What would be the volume of hydrogen pas produced by the reaction of 0.100 g of magnesium metal, collected at 750 torr and...
Complete and balance the reaction below: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (s) How many moles of H2 gas will be produced from 2 mol of HCl ? 2HCl ---à H2 + Cl2 1 mol of H2 gas will be produced from 2 moles HCl. How would you determine the volume of a 125mL Erlenmeyer flask that you will use for the experiment? (a 125 mL flask does not have a total volume of 125 mL)...
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?
1. For the reaction: Mg(s) + 2HCl(aq) + MgCl, (aq) +H, (g) Patm = PH, + PHO a) Calculate the molar volume of hydrogen gas produced given the following data: mass of Mg (s)= 0.0334g volume of H, (g) produced - 33.1 mL T= 19.7°C atmospheric pressure: 768 mm Hg b) Calculate % error. 2. What are some of the limitations to getting accurate results for calculation of the Enthalpy of Vaporization of Ethanol in the experimental set-up that was...
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) How many grams of magnesium are needed to prepare 6.90 L of H2 at 775 mmHg and 20 ∘C?
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What volume of hydrogen at 0 ∘C and 1.00 atm (STP) is released when 9.40 g of Mg reacts?
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...
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 )
According to the equation: Zn(s) + 2HCl(aq) ----> H2(g) + ZnCl(aq), calculate the volume (L) of H2 gas that can be formed at 25 °C and a pressure of 854 mmHg when 25.0 g of Zn is used in the reaction.