How many grams of helium gas are in a balloon at STP conditions if the volume of the balloon is 11.2 Liters? Your answer: O 16 grams O 2 grams O 4 grams O 8 grams

Q: 2 N205 4 NO2 + O2 at 25C N2O5 11.29 KJ/mol NO2 33.15 KJ/mol O2 O KJ/mol What is the AH° for the…

A: Q.13:  2N2O5 (g)  <------> 4NO2(g) + O2(g)  We can find ∆Horxn using the formula below and the…

Q: Determine the enthalpy change in the following equation: 2/3 H2S(g) + O2lg)2/3 SO2(g) + 2/3 H20(1)…

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Q: х. Choose the correct answer: 1) Hз0, 2) heat ?????? OCH3 OH OH B) A) OCH3 OH D) OCH3

A:

Q: Determine the oxidation numbers of each of the elements in the following reaction, and identify…

A: 1) The given reaction as follow                 2MnCO3 (s)   +   O2 (g)    →  2 MnO2 (s) +  2CO2…

Q: You are given the following data: Н-(g) — 2H(g) AH° = 436.4 kJ/mol Br2(g) 2Br(g) AH° = 192.5 kJ/mol…

A: Hess's law states that at standard conditions, the standard enthalpy change is the sum of standard…

Q: 2. Calculate the amount of CO₂ emitted per kJ of heat produced of pentanol; (AH comb = -3331 kJ/mol)

A: 2) Pentanol underogo combustion reaction to form carbon dioxide and water vapour.Tge amount of heat…

Q: Why is the amount of heat absorbed by the water not equal to the amount of heat produced by the…

A: Combustion is a exothermic chemical process in which in presence of atmospheric oxygen, molecules…

Q: In an insulated cup of negligible heat capacity, 50.0 g of water at 40 oC is mixed with 30.0 g of…

A: Mass of water=50.0 gmAInitial temperature⇒TA=40°CFinal Temperature , T2=?Mass of water ,…

Q: A reaction requires 24g of 1-propanol. What volume of 1-propanol should a student use? (In units of…

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Q: 1a). What two alcohols could give the following Allende upon treatment with concentrated sulfuric…

A: Alcohols on reaction with sulphuric acid undergo dehydration to form alkenes.

Q: „Ph 1) O, 2) Zn, H20 3) NaOH, H2O heat, (dehydration) CH2 0 to NaOH, H20 heat (dehydration)

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Q: 4. One day while working the in lab, I decide to warm a cup of water to make some tea. I place the…

A: Given :-  C(s) + 2H2 (g) → CH4(g) , ∆H1 = -74.87 (kJ/mol) ... (1)  C(s) + O2 (g) → CO2(g) , ∆H2 =…

Q: b. HO NHAC HNO3 BnBr H₂SO4 K₂CO3 6 N HCI BF3 Et₂O MeOH 60 °C t-BUONO BnO NO ₂ N₂ BF4

A: In this question, we will draw the reaction sequence and intermediate products from starting…

Q: 17. How much energy would it take to take 15 g of acetone from -193 °C to 333 °C at 1 atm of…

A: Acetone changed from -193 degrees Celsius to 330 degrees Celsius.  As the temperature increased, the…

Q: 3. A solid chemical called Instant Ice can be purchased, which when mixed with water at room…

A: Endothermic reactions are those in which the enthalpy change, that is the difference in enthalpy…

Q: ease fill the missing information for the fol HO. NaBHg, CH3CH,он OH OH H,CrO4 HI Br2 FeBr3

A: a) Draw the reactants. NaBH4 is a reducing agent that can reduce aldehydes. Thus, the aldehyde is…

Q: What is the heat, q, when 25.0 g of acetonitrile, CH3CN, reacts completely with an excess of water?…

A: Using molar mass of CH3CN and from given data we can find heat (q).

Q: H3C CH3 CH3 N CH3 CH3 CH3 H3C. CH3 CH3 CH3 CH3 Ag₂O, H₂O heat Ag₂O, H₂O heat

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Q: What's More Xeiivity 2: Positive or Negative? Direction: Study the comic strips entítled,…

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Q: Based on the reaction below, answer the following questions. 4 Fe (s) + 3 02 (e) 2 Fe2O3 (s) + heat…

A: We have to choose the options as in accordance to reaction.

Q: Are all the arrows representing reacting with heat?

A: In this question, we have to answer what all arrows represents in the preceding question.

Q: Metathesis reactions can be carried out with two different alkene substrates in one reaction…

A: SOLUTION: Step 1: Alkene metathesis is a catalytic process in which alkenes are converted into new…

Q: 3. In the calorimeter which component do you think is gaining heat (metal or water)? Explain how you…

A: Please find solutions of question 3 & 4.   3. In the calorimeter which component do you think is…

Q: 11. The density of magnesium metal is 1.74 g/cc. What is the mass of 85.1 cc of magnesium?

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Q: 3. Entropy changes, unlike enthalpy changes, cannot be measured using a calorimeter.…

A: The statements given are, Entropy changes, unlike enthalpy changes, cannot be measured using a…

Q: What type of a system and process does water heater that takes in cold water a

A: Heat transfer process takes place in a heater, where the energy is derived from the an external…

Q: C Macmillan Learn The table lists the specific heat values for brick, ethanol, and wood. Specific…

A: Heat is calculated by using the formula q=ms∆T q=heat m=mass of substance s=specific heat of that…

Q: + + 1. Using two or more of the following. N.(g) lo.(g) → N.O.(a) AH-83.7 kJ N.(g) O(g) → 2NO(g) AH…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: Petroleum itself  as a mixture is very useful but the components extracted from it are not…

A:

Q: Combustible or energy-generating molecules that can be harnessed to produce mechanical energy and…

A: "Combustible or energy- generating molecules that can be harnessed to produce mechanical energy and…

Q: 43. Use the information below to answer the question. Row A. B. C. D. E, QJ) O A Reactants The…

A: The reaction in which energy is absorbed this reaction is called endothermic reaction.

Q: 1. Discuss the nature (organic, acids, bases, heavy metals) of AgNO3, NaOH, CH₂COOH, CH₂CH₂OH and…

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Q: What are the important features of an energy diagram?

A: An energy diagram is a diagram showing the change in the energy during any chemical reactions.

Q: 2. What type of reaction would have a positive AT value? Explain.

A: Positive ∆T (Change in temperature) indicates that the temperature of a system is increasing due to…

Q: that should be written in the spaces in the text given below in the box below. ……………………… can form…

A: Write the expressions that should be written in the spaces in the text given below in the box below.…

Q: EtO 1. NaOEt, EtOH 2. CH3CH₂1 OEt H30+, Heat

A:

Q: heat но. Select one:

A: In organic chemistry, straight chains undergo a cyclization process in the presence of heat. The…

Q: HNO3 H,SO,

A: Nitration work on electrophilic mechanism , so NO2 join on group which has more electron density .…

Q: Peer Leader: Date: For all problems involving calculations, show your work. Carry the units through…

A: Given: The given unbalanced reaction is: .....C8H18 (g) + .....O2(g)  → .....CO2(g)  +…

Q: 1. How many calories is needed to raise the temperature of 40 g water from 0°C to 100°C? The…

A: Here we are required to find the amount of heat energy required to warm 40 gm of water

Q: $ CHz NHz

A: 1. When is treated with 1o amine, cyclic amides is formed 2. Anhydride upon hydrolysis give dioic…

Types of Polymers on the basis of Method of Preparation