# calculate the volume of h2 gas produced when in libya

In 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g), the hydrogen …

24/6/2018· In 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g), the hydrogen gas generated is collected over water at 25.0 C. The volume of the gas is 200 mL measured at 1.00 atm. What is the nuer of grams of sodium used? Vapor pressure of water at 25 C = 0.0313 atm.

what is the volume of H2 at 0° C and 1.00atm pressure ( …

You have to find the nuer of moles of hydrogen gas produced when zinc and hydrochloric acid reacted. To do this you need to use the equation PV=nRT and solve for n.(n=PV/RT) I would use 0.08206 atmL/molK For the gas constant so you need to convert 22°C …

Volume Change Through Electrolysis - OnlineConversion …

2 H2O --> 2 H2 + O2, so 2 moles of water produces 2 moles of H2 gas and 1 mole of O2. 1 L of water at 21 °C has density 0.998 kg/L, molar mass 18.0153 g/mol, so 55.40 moles. You will produce 55.40 moles H2 and 27.70 moles of O2.

Chem Quiz 12.1-12.3 Flashcards | Quizlet

0.42 L H2 x (1 mol H2/ 22.4 L H2) x (4 mol PH3/ 6 mol H2) x (22.4 L PH3/ 1 mol PH3) = 0.28 L PH3 Calculate the volume of sulfur dioxide produced when 27.9 mL O2 reacts with carbon disulfide. 27.9 mL O2 x (2 mL SO2/ 3 mL O2) = 18.6 mL SO2

what is the volume of hydrogen at S.T.P? | Yahoo Answers

17/8/2008· just remeer that any 1 molar gas at STP is 22.4 l and all conversions come from here. if u wanna know generally, then it depends on place to place, latittude to latt. etc. in air, H2 is approx. 7%, though exact vol. is never calculated because its lighter than air and

molar volume of H2 gas.pdf - Google Docs

Page 1 of 7 alog No. AP6450 Publiion No. 6450A Determining the Molar Volume of a Gas AP Chemistry Laboratory #5 Introduction From blimps to airbags, gases are used to fill a wide variety of containers. How much of a particu- lar gas must be produced to

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The produced gas is then collected and its mass and volume are determined. The molar mass of the unknown gas can be found using the ideal gas law , provided the temperature and pressure of the gas …

Unit 4 quiz Flashcards | Quizlet

What volume (in liters) of Cl2O gas at STP can be produced from 142 cm3 of chlorine gas at STP and 0.963 g of HgO according to the following equation? 2Cl2 + HgO → HgCl2 + Cl2O (The equation is already balanced.) 0.0710 L 0.121 L 0.242 L 0.291 L

Chemistry lab help (Zn and HCl reaction)? | Yahoo Answers

1/12/2012· Volume of gas collected in the piston (mL): 99.66 I''m having difficulty answering the following questions regarding it: 1.) Based on your data, calculate the nuer of moles of zinc that reacted. 2.) Calculate the nuer of moles of hydrogen gas produced using the

How to findout the nuer of molecules of hydrogen …

Zinc reacts with HCl Acid as follows. Zn + 2HCl —————-> ZnCl2 + H2 So 2 moles of HCl reacts with Zinc metal to produce 1Mole of H2 gas. So 1 mole of HCl will react with Zinc to produce 0.5 mole of H2 gas. No of molecules of H2 gas present in 0.5 m

(Solved) - Experiment 1: Mass of Zinc: 0.25g 6 M HCl …

1 Answer to Experiment 1: Mass of Zinc: 0.25g 6 M HCl solutions: 10mL Volume of hydrogen gas produced is 92.3mL Temperature: 21.5C Pressure: 1.00atm Reaction: Bubbles Temperature after reaction: 27.4C down to 21.5C Pressure after reaction: 1.68atm, after

I had to complete a lab for molar volume of a gas. | Yeah …

volume of H2 gas at stp 22,400 mL volume of H2 from 1 mole mg at stp 23, 627 mL I think you answer for moles Mg = 0.0308 is really the mass of Mg as 100cm has a mass of 1.7118g, so 1.8cm will have a mass of (1.7118/100) x 1.8 = 0.0308g.

Volume of H2 (HD) -

23/1/2012· Part of NCSSM Online collection: This video deals determining the volume of H2 using HCL and a Mg strip. NCSSM, a publicly funded hi

Lab Report: Moolar Volume Of A Gas At STP - 1765 …

Formal Lab Report: Molar Volume of a Gas at STP Abstract: The purpose of this experiment is to find out how to experimentally determine what the volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced

Experiment 12: MOLAR VOLUME OF AN IDEAL GAS

146 EXPERIMENT 12: MOLAR VOLUME OF A GAS Prelab Exercise: Your instructor will specify whether you are to submit the answers to these questions or take pre-lab quiz with similar questions. 1. How many moles of gas are produced if 0.037 g of

What volume of ammonia gas NH3 in liters is produced …

First lets convert the 100g N2 into moles (100/28=3.57 moles). Now lets look at the balanced reaction equation: N2 + 3H2 -> 2NH3 This means that if I have 3.57 moles of N2, I will

Calculate the volume of ammonia gas produced at STP …

18/8/2017· Calculate the volume of ammonia gas produced at STP when 140g of nitrogen gas reacts with 30g of hydrogen gas.(atomic mass: N=14u,H=1u) how to do this? Chemistry Stoichiometry Equation Stoichiometry 1 Answer Sunayan S · Truong-Son N.

7.7: Lab 3 Worksheet - Chemistry LibreTexts

Calculate the atomic mass of the metal if the volume measured in the prelab problem #4 was 30.0 mL instead of 26.5 mL still assuming a 1 to 1 ratio between the moles of metal used and the moles of H 2 gas produced.

Acetylene gas, C2H2(g), can be prepared by | Clutch Prep

Problem: Acetylene gas, C2H2(g), can be prepared by the reaction of calcium carbide with water: CaC2(s) + 2 H2O(l) → Ca(OH)2(s) + C2H2(g)Calculate the volume of C2H2 that is collected over water at 23 oC by reaction of 1.53 g of CaC2 if the total pressure of the gas is 753 torr.

PV=nRT - Use the Ideal Gas Law -

14/5/2014· Calculate pressure, volume, moles or temperature with PV=nRT The gas constant R is 8.314 if your pressure is in kPa. It is 0.08206 if your pressure is in atm

O Lvl Chem_Chap 10_upload.pdf - Google Docs

that the volume of hydrogen is 10cm3 , calculate (a) the volume of oxygen gas required for the reaction (b) the amount of water (in moles) produced. 2H2 + 02 → 2H2O (a) According to the eqn, 2 mol of hydrogen reacts with 1 mol of oxygen. Volume of oxygen

Answered: Hydrogen gas is produced when zinc… | …

Hydrogen gas is produced when zinc reacts with sulfuric acid:Zn(s) + H2SO4(aq)----->ZnSO4(aq) + H2(g)If 159 mL of wet H2 is collected over water at 24 C and abarometric pressure of 738 torr, how many grams of Zn havebeen consumed? (The vapor pressure of