How much heat in kj evolves

Assignment Help Chemistry

Reference no: EM13169904

acetylene (C2H2) torches are used in welding. How much heat in kJ evolves when 5.0g of C2H2 (d=1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is

C2H2(g) + 5/2 O2 (g) --> CO2 (g) + H2O(l) (heat of reaction is . -1299.5kJ

Reference no: EM13169904

Questions Cloud

What is the total pressure exerted by the gas mixture : In a gas mixture, the partial pressures are nitrogen 420 torr , oxygen 125 torr , and helium 245 torr. What is the total pressure (torr) exerted by the gas mixture?

How many grams of baso4 will be formed : How many mL of .150M bacl2 are needed to react with 35mL of .200M na2so4? How many grams of BaSO4 will be formed?

What is the mass percent of a sodium fluoride solution : What is the mass percent of a sodium fluoride solution prepared by dissolving 0.64 moles of sodium fluoride into 63.5 grams of water?

Difference between process material and component part : What is the difference between a process material and a component part? (Question in marketing but specifically asking what a preassembled motor purchased by a garage door opener company is considered)

How much heat in kj evolves : acetylene (C2H2) torches are used in welding. How much heat in kJ evolves when 5.0g of C2H2 (d=1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas?

Important issue related to your representative''s committee : Identify an important issue related to your representative's committee or subcommittee work in Congress. Summarize your representative's position on that issue as described on his or her website or illustrated by legislation sponsored by your represe..

Use the concept of electron configurations : use the concept of electron configurations to explain why the number of alence electrons in metals tends to be less then the number in most nonmetals.

Find the temperature of the water : A mixture of 4.0 mol of H2 and 2.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 27C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.

What is the molarity of the stock solution of luminol : the forensic technician at a crime scene has just prepared a luminol stock solution by adding 11.0 of luminol to creating a solution with a total volume of 75.0 . What is the molarity of the stock solution of luminol?

User Account

All Pages