Current= .3mA. Time: 4:40 min. Volume H2= 1.0 mL. Volume O2= .5 mL. Temperature= 22 C. Charge= 1.60*10^-19 C. Boltzmann constant= 1.38*10^-23 J/K. How much H2 gas formed (moles) during electrolysis? Time: 13:00 min. H2 Volume (ml)= 2.0.
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Current= .3mA. Time: 4:40 min. Volume H2= 1.0 mL. Volume O2= .5 mL. Temperature= 22 C....
The vapor pressure of water changes with temperature, as shown here. T(∘C) P(torr) 21 18.7 22 19.8 23 21.1 24 22.4 25 23.8 26 25.2 27 26.7 28 28.4 29 30.0 30 31.8 The values above go in this order 21 is T(C) and 18.7 is (Ptorr) goes in this order all the way down A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When...
Date Section Code Data Sheet Table 11.1. Time-temperature data. A. Volume of HCl solution (mL) Molarity of HCl solution (M) Volume of NaOH solution (mL) Molarity of NaOH solution (M) Initial temperature of HCl solution (°C) Initial temperature of NaOH solution (°C) Temperatures of solution (°C) at 0.25-min. (15-sec.) intervals 0.25 Run 1 Run 2 49.5 49.8 12.119 2.119 53.2 53.6 2.087 2.087 18.9°C 18.8°C a.oc 18ợc. . 29.9 29.8 32.3 3107 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25...
C. Efect of Varving Temperature Constant volume of 6.OM HCl used is 6.0 mL Constant volume of diluted HCl is 50.0 mL Run Number Temperature (oC) Time to Produce 30. ml of H, gas (see) 9.98 20 Run 1 is the same data which was recorded for Run 3 of Part A above. Show all calculations and be sure to include units and the correct number of significant figures. 1. For each dilution of the 6.OM HCI in Part A....
Please answer & explain 36-40 Calculate the volume of H2(g) at 273 K and 2.00 atm that will be formed when 275 mL of 0.725 M HCI (g) solution reacts with excess Mg to give hydrogen gas and aqueous magnesium chloride. 2 HCl (g) + Mg(s) → MgCl2 (s) + H2(g) a) 0.56 L b) 4.47 L c) 2.23 L d) 1.12 L 37. What is the total pressure in atmospheres in a 10.0 L vessel containing 2.50 x 10-3...
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
9,10,11,12,13,14, and 15 please a syringe is filled with 40. mL. of air at room temperature (22°C) in the lab and then this syringe is placed into a boiling water bath. After S minutes, the volume of gas in in the syringe (still at lab pressure) should be close to which volume? 9. Which of these is a true statement about a below a tube that is filled with a liquid such as mercury b. The weight of the liquid...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
Question 22 (2.5 points) How many grams of glucose (C6H1206) are in 3.55 moles of glucose? A) 180. g B) 639 g C) 103 g D) 426 g E) 50.7 g А с ОЕ B D Question 23 (2.5 points) How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg in the following reaction? 2Mg (s) + O2(g) → 2MgO(s) A) 30.4 g B) 50.4 g C) 60.8 g D) 101 g E) 201...
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...