21. Which of the following equations is/are balanced 3MGO+2FE→FE20O3+2Mg a. b. N20-N2+O2 c. C2H3N2+2N2O4→2N2+2CO2+4H2O d. CaC2+2H2O¬Ca(OH)2+C2H2

Q: [A] vs Time In[A] vs Time O 1/[A] vs Time O Least Squares Plot Time, s The reaction A - C was perfor...

A: Reaction =  A → C                     For the given concentration vs time data above, we plot the Gr...

Q: final temperature

A:

Q: The reaction of methane with oxygen has the following unbalanced equation CH4(g) + O2(g) CO2(g) + H2...

A:

Q: A gas phase reaction between nitrogen dioxide and fluorine is proposed to occur by the following mec...

A: Reaction rate  The rate (M/s) at which the reactant change into products.   Rate law  The mathematic...

Q: 4. What volume of 2.25M H;SO, should be diluted with water to prepare 1.5 Lof 1.20 M acid?

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute...

Q: 1. A gas mixture contains each of the following gases at the indicated partial pressures: N2, 226 to...

A: Given :-  PN2 = 226 torr  PO2 = 122 torr  PHe = 107 torr  Volume = 1.50 L  Temperature = 25°C  To ca...

Q: Question IUPAC ?

A:

Q: A mixture of neon and argon gases is maintained in a 7.63 L flask at a pressure of 3.55 atm and a te...

A:

Q: Question 13 What could be the assumption when the MW of the sample does not match calculated molecua...

A: Answer:  This question is based on the colligative properties of the solution where on dissolving so...

Q: 34. The equilibrium constant for the autoionization of water at some temperature below the room temp...

A: Given data, Kw=1.2×10-15 pOH = ? 

Q: How to solve for the reaction rate order and rate constant  of the dissolution of CuO given only the...

A: A reaction is said to be zero order if the plot of concentration versus time is straight line, if th...

Q: What volume of 7.55 M HCl solution must be diluted to prepare 4550 mL of 0.380 M HCl?

A:

Q: The activation energy for the gas phase decomposition of t-butyl alcohol is 274 k). (CH3)3COH (CH3)2...

A:

Q: O Predie the patteren He, Nb and enplasu quillasing compeand and He in the iydy the Ma 1((rrし Me

A: These questions are based upon NMR Spectroscopy.

Q: What is the pressure in a 30.0-L cylinder filled with 35.9 g of oxygen gas at a temperature of 350 K...

A:

Q: Write the lewis structure for a) a hydroxide free radical b) a hydrogen free radical c) hydrogen per...

A: Lewis structure is also known as Lewis dot structure, are diagrams  that show the bonding between at...

Q: For the gas phase decomposition of dimethyl ether at 500 °C CH30CH3→CH4 + H2 + Co the following data...

A: Given chemical equation : CH3OCH3 ------> CH4 + H2 + CO Average rate of disappearance of CH3OCH3 ...

Q: Create a Diagram of the process of acid - base equilibrium -

A: Acid and bases maintain a chemical equilibrium in the solution by exchanging the protons from the do...

Q: Questions A 30.0 g metal cube is heated to a temperature of 100.0°C and placed in a coffee-cup calor...

A: The amount of heat required to raise the temperature of the sample is given by: q = c∆Tq is the heat...

Q: CONCEPT QUESTIONS Predict the Product. Provide the major organic product(s) for each of the followin...

A:

Q: QUESTION 1 When sodium chloride dissolves in water, how do the water molecules orient around the ion...

A: When sodium chloride dissolved in water,the water molecules Orient around the ions :- (E) Around sod...

Q: Which of the following statements is FALSE about pericyclic reactions? * Pericyclic reactions occur ...

A:

Q: During the performance of "Copper Reactions", 0.493 g of copper was used as starting material. After...

A: Percent yield is the actual yield divided by the theoretical yield multiplied by 100: % yield=Actual...

Q: When HI is added in excess to the unsymmetrical ether below, it results in Ph-O-CH2-CH2 NO2 PhI PHCH...

A: When excess amount of HI used then alkyl iodide formed.  

Q: When a mixture of ethyl butyrate and methyl acetate separated by simple & fractional distillation. H...

A: Simple distillation is used to separate mixture of miscible liquids with sufficiently large differen...

Q: if the fundamental frequency for N" o's is 1876.06 cml and first harmoni is 16 3724.2 cm? Calculate:...

A: The above question can be solved using the concept of dissociation energy used in the vibrational sp...

Q: what is the purpose of the implementation of GHS? Select the correct response: To minimize the cost ...

A: the purpose of the implementation of GHS is 

Q: 11.A Study of Intermolecular Forces of Attraction Anna Divi, a young and ambitious researcher, is pl...

A: Given: Break temperature = melting point = 54 oC Arrest temperature = freezing point = 51 oC

Q: Select two trials that can be used to determine the reaction order with respect to A. [A], mol/L [B]...

A: Rate = k [A]order A [B] order B  To determine orderA divide rate1 by rate2 since [B] is constant dur...

Q: For numbers 8-10 (3pts) Show your solution to the following and box your answer. A soda mint tablet ...

A: Given -> Volume of HCl = 30.5 ml Molarity of HCl= 0.135 M  

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI,(g) = PCI,(g) + Cl,(g) K ...

A:

Q: The gas phase decomposition of sulfuryl chloride at 600 K so,Cl2(g)S02(g) + Cl2(g) is first order in...

A: Time after which the concentration of SO₂Cl₂ will be 2.85x10-4 M is given below

Q: For cases where [A] exactly doubles: • if the rate does not change, the order for A is 0. if the rat...

A:

Q: 14.5-L scuba diving tank contains a helium-oxygen (heliox) mixture made up of 24.5 g of He and 4.41 ...

A: Mass of He = 25.5 g Moles of He = mass / molar mass = (25.5 g) / (4 g/mol) = 6.375 mol Mass of O2 = ...

Q: If weak acids ionize only a few percent in aqueous solution, why is it possible to fully neutralize ...

A: Concept:  Weak acid: Weak acids are acids which don't completely dissociate in solution. In other wo...

Q: ACTIVITY 2: 1. WHY DO IONIC COMPOUNDS LIKE SODIUM CHLORIDE HAS GREATER EFFECT ON THE COLLIGATIVE PRO...

A: Colligative property is directly proportional to the no of particles in the solution. And the no of ...

Q: The molar solubility of SRF2 is 2.5 x 10^-9 M. Calculate the Ksp of SRF2.

A: Molar solubility of SrF2 is 2.5 * 10^-9 means when 1 mole of SrF2 is dissolved in water 2.5 * 10^-9 ...

Q: A solution contains 6.1 g/liter of benzoic acid. Calculate the pH. a. None of these O b. 1 С. 4 d. 2...

A: Here we have to determine the pH of aqueous solution containing 6.1 g/Liter of benzoic acid . Data K...

Q: If a 6.00% (w/v) citric acid solution contains 6.00 grams of citric acid in every 100.0 mL of the so...

A:

Q: Give the name and use of the glassware below: Select the correct response(9): Crucible Tong May be u...

A:   An image of a glassware is given. We have to identify the name of the glassware and it's function ...

Q: . Give the IUPAC name for the following: NH2 (e) CH, (b) CH, Cн, (a) NO CH̟CH-CH,

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: f. 2-ethyl-cyclopentane-1,3- dicarbaldehyde g. 2-chloro-3-hydroxy-4-oxo-pentanal h. 2,2-dimethyl-cyc...

A:

Q: the molecular formula c

A:

Q: Given the volume of 0.2000 M NaOH used determine the concentration of 10.00 ml sample each from aqua...

A: Introduction: Kd is called distribution or partition coefficient. It is calculated by the following ...

Q: The rate of the reaction N205(g) 2 NO2(g) + 1/2 02(g) is measured at different temperatures, with th...

A: The activation energy is the minimum energy required for the reaction to occur Here we are required ...

Q: d• Using the phase diagram to the right, select all of the statements that are false. f a. T. Temper...

A: A phase diagram is a graphical representation which shows the variation in the physical states of a ...

Q: 23. What is the pH of a 3.0 x 107 M solution of HCI?

A:

Q: A 2.500g sample of copper (a transition metal) reacts with oxygen to form 3.108g of product.  What i...

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements presen...

Q: Which of the following is a sigmatropic rearrangement? *

A: A sigmatropic reaction in organic chemistry is a pericyclic reaction wherein the net result is one σ...

Q: Given the volume of 0.2000 M N2OH used determine the concentration of 10.00 ml sample each from aqua...

A: Given: Volume of NaOH for Aq layer = 12.55 mL Volume of NaOH for Or layer = 15.27 mL Concentration o...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".