When hydrogen peroxide (H2O2) is used in rocket fuels, it produces water and oxygen (O2). 2H2O2(1)-2H20...
When hydrogen peroxide (H2O2) is used in rocket fuels, it produces water, oxygen, and heat. 2H2O2(l)⟶2H2O(l)+O2(g)ΔH=−196kJ Part B: How many kilojoules are released when 3.05 moles of H2O2 reacts? Express your answer with the appropriate units. Part C: How many kilojoules are released when 277 g of O2 is produced? Express your answer with the appropriate units.
How many grams of hydrogen peroxide (H2O2) are needed to produce 25.0 g of oxygen? 2H2O2 + 2H2O + O2 25.0g 53.1g 5.88 g 106g 26.6g
Hydrogen peroxide, H2O2, is a colorless liquid whose solutions are used as a bleach and an antiseptic. H2O2 can be prepared in a process whose overall change is H, O2 (1) H2(g) +O2(g) Calculate the enthalpy change using the following data: 2H2O2()2H2 O (l) + O2(g); AH = -196.0 kJ H2(g) +O2(g)H2O(); AH= -285.8 kJ ΔΗ- kJ 10 item attempts remaining Try Another Version Submit Answer
? Review Constants Periodic Table Value Units The chemical reaction of hydrogen with oxygen produces water 2H2 (9)O2(9) 2H20(9) Request Answer Submit Part C How many moles of H2O form when 3.5 moles of O2 reacts? Express your answer to two significant figures and include the appropriate units. HA ? Value Units Request Answer Submit
Hydrogen peroxide decomposes into water and oxygen according to the following reaction: 2H2O2(1)→ 2H2O(g) + O2(g) 0.11 g of H2O2 is decomposed in a flask with a volume of 2.50 L. What is the pressure of O2 at 298 K? a. 0.032 atm b. 0.048 atm C. 0.016 atm d. 0.16 atm e. None of the above Predict the signs of AH° and ASº for the following reaction: O2(g) + O2(1) a. + AH°; + AS° b. + AH°; -...
In the reaction: 2H2O2 --> 2 H20 + O2 How many moles of hydrogen peroxide would be needed in order to produce 12.6 moles of oxygen gas? O 12.6 0 25.2 O 6.3 O 857 Balance the following equation. _ZnCl2 + _(NH4)3PO4 --> _Zn3(PO4)2 + _NH4Cl O 1, 1, 1, 1 O 3, 2, 1,6 O 6, 2, 1,6 O 6, 4, 2, 12
Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases oxygen gas on decomposition as shown below. 2 H202 (1) ► 2 H20,() + O2 (g) AHrxn = -196 kJ How much heat istreleased when 25.0 grams of H202 decomposes? Molar Mass(H2O2) = 34.01 g/mol Ca.-133 kJ b.-533 k] c-72.0 kj 0-288 kJ e-144 kJ
72. Hydrogen peroxide is a very common oxidizing agent. It has been used as an oxidizer for rocket engines, it is a readily available antiseptic for home use and we have used it several times in the general chemistry lab. Below is some thermodynamic data for hydrogen peroxide xide at 25 C H (kJ/mol AG (k.J/mol Chemical Thermodvnamics of hydrogen 188 266 H20:1) H2(g) 02(g) H:0:(1) 20H(g H2O2(g) → 20H(g) H202(g) HO:(g) +H(g) H2O2(l) H2O(l)+%O2(g) 120 188 174 332 365...
Part A Hydrogen and oxygen combine to form H,O via the following reaction: 2H2(g) + O2(g) → 2H2O(g) How many liters of oxygen (at STP) are required to form 14.9 g of H2O? Express the volume to three significant figures and include the appropriate units. HMÅ O ? VE Value Units Submit Request Answer
You must dilute a 4X stock solution of a hydrogen peroxide to 800 mLmL to dispense a 2 %% solution. Part A How much of the 4X stock do you need? Express your answer to two significant figures and include the appropriate units. ? PÅ N O Value Units Submit Request Answer Part B What is the concentration of the 4X stock solution? Express your answer as an integer. IVO AQ R O O ? Submit Request Answer