What is the empirical of compound (X) going through the following decomposition reaction?

78,095 results, page 45

Chemistry

For the reaction given below, the frequency factor A is 8.7 multiplied by 1012 s-1 and the activation energy is 63 kJ/mol. NO(g) + O3(g) NO2(g) + O2(g) What is the rate constant for the reaction at 55°C?

Chemistry

For the reaction given below, the frequency factor A is 8.7 multiplied by 1012 s-1 and the activation energy is 63 kJ/mol. NO(g) + O3(g) NO2(g) + O2(g) What is the rate constant for the reaction at 55°C?

Chemistry

A particular reaction has an activation energy of 51.6kJ/mol-rxn. How much faster is the reaction at 50 degrees C versus 25degrees C? I do not know how to start this!

science

0.042g of Magnesium was reacted with excess HCl at S.T.P. A. Write the equation for the reaction B. How many moles of Mg were used? C. What volume of Hydrogen is produced in this reaction?_

Chemistry - Science (Dr. Bob222)

Consider reaction below: 50H3O^+(aq) + 7Cr2O7^2-(aq) +3I_2(aq) --> 6IO_4^-(aq) + 14Cr^3+(aq) + 75H2O (l) How many electrons are transferred in this reaction?

sun shine high shcool

during the reaction the temperature of 50cm of solution tell by 10centigrade, how much energy did the reaction take in?

Chemistry

Find the change in internal energy for this reaction. Enter in kJ. 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) Enthalpy of reaction= -2599 kJ

Chemistry

I'm looking for a video of a chemical reaction that can help me answer these questions What are the names of the reactants and products and their states @ room temperature? What type of reaction is it?

chem

balance the reaction using the half reaction method. OsO4 + C2H4 -> Os + CO2 worksheet does not show if it is in a gas and aqueous state.

Chemistry

the equilibrium constant for the reaction N2 + H2 <---> 2NH3 at 700K is 12. calculate the amount of NH3 if the reaction started with 1 mole of N2 and 3 moles of H2 in a 1 liter vessel

Chemistry

Given the reaction below, and your knowledge of the "Law of Conservation of Mass", what is the missing product from the chemical reaction? How do you know? Zn(s) + HCl(aq) --> ___ + ZnCl2(aq)

Chemistry

Element X has the highest first electron affinity in its period; the ground state electron configuration of it's most common ion is [Kr] 5s^2 4d^10 5p^6 a Element Y is the second largest element in it's period; it's valence electrons are in orbital(s) that have n=6 what is the...

English

List the compound nouns in this sentence. Philo T. Farnsworth was the first American inventor to use television technology. The answers were Philo T Farnsworth, American inventor, and television technology. Can a proper noun also be a compound noun?

Chemistry

I know nothing about chemistry, but am wondering if someone could help me with these. 1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ® ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic solution) Zn + MnO4- ® Zn...

Chemistry Urgent

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

Chemistry

Calculate ΔHrxn for the following reaction: CaO(s)+CO2(g)→CaCO3(s) Use the following reactions and given ΔH′s. Ca(s)+CO2(g)+12O2(g)→CaCO3(s), ΔH= -812.8 kJ 2Ca(s)+O2(g)→2CaO(s), ΔH= -1269.8 kJ

Chemistry -Please Help

2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O7^2– + NH4^+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– B.) Cr2O7^2– -> Cr2O3 C.) NH4^+ -> N2 D.) N2 -> NH4^+ I think it is B...? 3. Which oxidation-reduction reactions are best ...

Chemistry

What is the reducing agent in the following reaction? 2K + S - - > K2S K*** S K2S None of these

College Chemistry

The molar heat of reaction, H rxn, for the reaction of Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) is -544.789 kJ/mol and Hrxn, for the reaction of CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) is -192.42 kJ/mol, the heat of formation of water is -286 kJ/mol, The H ffor CaO(s) is _____ kJ/mol. ...

Chemistry

Please show me how to work! thanks When Snno2(s) is formed form the comustion of gray tin, the reaction enthalpy is -578.6 kJ, and when white tin is burned to form SnO2(s), the reaction enthalpy is -580.7 kJ. Calculate the reaction enthalpu for Sn(gray)-->Sn(white)

life orientation

how intrapersonal conflict can be addressed through the following stra tegies engaging,counselling and self-talk.

General Chemistry

NH4+ + NO2- = N2 + 2H2O A reaction is run, and the liberated N2 gas is collected in a previously evacuated 500 mL container. After the reaction has gone on for 750 seconds, the pressure of N2 in the 500 mL container is 2.77 x 10^-2 atm , and the temperature of the N2 is 250 ...

CHEM HELP PLEASE!

Cyanohydrins can be made from carbonyl compounds by generating CN– ions from HCN in the presence of a weak base. In a similar reaction, –CH2CO2CH3 ions are generated from CH3CO2CH3 by strong bases. Which compound can be made from an aldehyde and CH3CO2CH3 in the presence ...

Chemistry

When one mole of ammonia is heated to a given temperature, 50% of the compound dissociates and the following equilibrium is establised. NH3(g) <-> 1/2N2(g) + 3/2H2(g) (note: <-> is my sad attempt at the equilibrium symbol) What is the total number of moles of gas ...

chemistry

The enzyme Y catalyzes the elementary reaction AB-->A + B An enzyme concentration of 1.0M Y can convert a maximum of 0.5M AB to the products A and B per second. What will happen when each of the following is added to a solution that contains 1.0M Y and 0.8M AB? I have to ...

Chemistry

A gaseous reaction mixture contains SO2, Cl2, and SO2Cl2 in a 2 L container with the gases having the following partial pressures: P(SO2)=0.35 atm, P(SO2Cl2)=0.19 atm, P(Cl2)=0.24 atm. Kp=91 for the equilibrium system: SO2 (g) + Cl2 (g) -> SO2Cl2 (g) Is the system at ...

English

what is the shift of the mood and setting of the story thanx alot:-) i didn't someone was going to read the story. i need someones point of view cuz i doing a huge essay and what i wrote is too short. thanx again ;-) i think like you said "after being handed money instead of a...

chemistry

When the concentration of CH3Br and NaOH are both 0.150M, the rate of the reaction is 0.0020M/S. (a) What is the rate of the reaction if the concetration of CH3Br is doubled? _______________M/s (b) What is the rate of the reaction if the concentration of NaOH is halved? ...

English

3. Which of the following sentences does not properly use a subordinating conjunction? A. As the man said, what comes around goes around. B. He acts like he's going to cry. C. You stay put unless I call for you. D. I will refuse his demands because they are outrageous. B or A?

chemistry

which of the following would be the limited reagent in the reaction shown below there are 50 molecules of O2 and 50 molecules of H2

chemistry

identify the oxidizing agent and the reducing agent in the following reaction: C + 2Clsub2 > CClsub4

chemistry

how many moles of HCl are needed to react with 2.3 moles of Zn in the following reaction? 2HCl + Zn --> ZnCl2 + H2

Chemistry

Does anyone know the condensed structured formula in the following reaction: a.CH3--CH2--CH=CH2+HOH-->H+ Thank you.

chemistry

determine the value of x for the following reaction: 4C + S8-> 4CS2 3.2 mol S8 yield x mol CS2

chemistry

Silver will spontaneously reduce which of the following? Reaction E (volts) Na+ + e- ---> Na -2.71 Co2+ + 2e- ---> Co -0.28 Ag+ + e- ---> Ag .80 A) Na B) Co2+ C) Na+ D)Co E) None of these

chemistry

What is the value of x for the following reaction if E∘=1.43V and ΔG∘ = -276kJ ? A+B^x+→A^x++B

chemistry

Following oxidation-reduction reaction by using the oxidation state method a) O2+H2O+Pb=Pb(OH)2

college chem

When the following reaction reaches equilibrium, the concentrations are 2.26 M A, 0.50 M B, and 2.00 M C. Calculate the equilibrium constant. A+2B<=====>3C

AE.. is this right

In any given multicultural classroom, what are the concerns in terms of social justice for all students? How would you address these concerns? Describe a strategy you might use to ensure that all students are treated equally and fairly? Teachers must be open to their students ...

basic english

Conrad and his sister will sing a duet in the concert. Which one of the following sentences is an accurate statement about the sentence? A. The sentence has no object. B. The sentence has a compound subject. C. The verb in the sentence is in the present tense. D. The pronoun ...

chem

consider the cell Pt(s)I H2 (g. 0.100 bar)I H+ (aq, pH= 2.54)IICl^- ( aq, 0.200 MI Hg2Cl2(S)IHg (l)IPt(s) a. write a reduction reaction and nernst equation for each half- cell. For the Hg2Cl2 half reaction, E^0 = 0.268 V b. Find E for the net cell reaction and state whether ...

Chemistry

Calculate the work involved if a reaction with an enthalpy change of -2418 kJ is carried out in a vessel with a mobile, frictionless piston. Other details: the reaction is H2(g) + 1/2Oxygen2(g) yields H2O(g) with enthalpy change of -241.8 kJ/mol. The product is 180.16gH2O=10....

chemistry

Given: Equation #1: 4NH3(g) + 5O2(g) = 4NO(g) + 6H2O; ΔH of reaction = -1170 kJ Equation #2: 4NH3(g) + 3O2(g) = 2N2(g) + 6H2O; ΔH of reaction = -1530 kJ Then what is the ΔH of reaction for: N2(g) + O2(g) = 2NO(g)? Enter a numerical value below and be sure to ...

Science

The following heats of formation are used to find the change in enthalpy for the formation of tin chloride in the following reaction Sn (s) + 2Cl2(g) --> SnCl4(l).Sn(s) + Cl2(g) --> Sn Cl2(l) DH = -186.2 kJSnCl2(s) + Cl2(g) --> SnCl4(l) DH = -325.1 kJWhat is the ...

chemistry

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

chemistry

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol

Chemistry

True and False... 1. A thermodynamically favorable reaction also proceeds spontaneously. I think that it is false? 2. Doubling the concentration of a reactant always causes the reaction rate to double. 3. a reaction that has a large activation energy in the forward direction ...

chemistry

The reaction of the ferric ions with isocyanate ions is an exothermic reaction. In what direction would you expect the equilibrium to move if the solution temperature is raised? Would the color of the reaction intensify? Explain. What would happen if you decreased the ...

Chemistry

At a given temperature, a first-order reaction has a rate constant of 3.5 ´ 10–3 s–1. How long will it take for the reaction to be 24% complete? A chemical reaction that is first-order in X is observed to have a rate constant of 2.20 ´ 10–2 s–1. If the initial ...

Chemistry

The theoretical yield of a reaction is the amount of product obtained if the limiting reactant is completely converted to product. Consider the reaction: P4(s) + 6 Cl2(g) → 4 PCl3(l) If 19.47 g P4 is mixed with 6.85 g Cl2, calculate the theoretical yield (g) of PCl3 ...

Chemistry

A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...

Chemistry

A 2.75 g sample of the hydrocarbon acetone, CH3COCH3, is burned in a bomb calorimeter with 975 mL of water, initially at 23.50 degrees celsius. The bomb is constructed of 285.0 g of nickel metal having a specific heat capacity of Cp = 0.826 J/ g degrees C. The final ...

Advanced Chem- Intermolecular Forces of Attraction

Answer/ explain the following in terms of intermolecular forces and properties of the substances referred to in each situation. 1. Why is it that if a glass is slightly filled above the brim with water, the liquid does not overflow? 2.Induced dipole forces or London force of ...

chemistry

Aluminium is manufactured by electrolysis(electrolytic decomposition) of bauxite, Al2O3. How much aluminium can be obtained from 1kg of pure bauxite?

Science (Chemistry)

The question: Balance each of the following skeletal equations by using oxidation and reduction half reactions. All the reactions take place in acidic solution. Identify the oxidizing agent and reducing agent in each reaction. a) Cl[sub]2[/sub] (g) + S[sub]2[/sub]O[sub]3[/sub...

science

what are 4 differences between ionic and covalent bonding? plz help thanks!! http://antoine.frostburg.edu/chem/senese/101/compounds/faq/properties-ionic-vs-covalent.shtml i clicked on the link but it doesnt tell me anything See if it works (Broken Link Removed) this time ...

Science

1-Which of the following is not a function of the circulatory system? D-fights infection 2-Which of the following explains why the heart is organized so that it pumps blood to two different locations? D-to provide a way for blood to pick up nutrients at one location and oxygen...

Pratical English

1. Which one of the following sentences contains an error in its verb? A. Both Clara and Nathan is planning to attend. B. Neither bananas nor squash was for sale. C. Either footnotes or endnotes are acceptable. D. Not only the players but also coach Jarvis was late for ...

Chemistry

for the redox reaction given in the chemical equation Pb(OH)4^2- (aq) + ClO- (aq) --> PbO2 (s) + Cl- (aq) For the oxidation half reaction I got Pb(OH)4^2- (aq) --> PbO2 (s) + 2H2O (l) + 2e- For the reduction half reaction I got 2e- + 2H2O(l) + ClO-(aq) --> Cl- (aq) + ...

chem class

The data in the table below were obtained for the reaction: A + B → P 3 Experiments 1 (A) (M): 0.273 (B) (M): 0.763 Initial Rate (M/s): 2.83 2 (A) (M): 0.273 (B) (M): 1.526 Initial Rate (M/s): 2.83 3 (A) (M): 0.819 (B) (M): 0.763 Initial Rate (M/s): 25.47 1) The order of...

MINNESOTA STUDIES

Multiple Choice 1. Which of the following most contributed to the formation of labor unions? (1 point) cuts to wages rising railroad rates grain elevator measures women working in factories 2. How did the Grange and the Farmers’ Alliance both work to help farmers? (1 point) ...

science help ASAP

which of the following is not a benefit provided through social group? A. instinct to run from predators**** B. Access to mates C. protecting young D. learning to recognize predators] which of the following helps ensure a groups access to resources it needs for survival? A. ...

Science

Please answer the following questions clearly: 1a) (ii) Why would a 15 year old male need more calcium than a 30 year old male? (iii) Why does a 25 year old pregnant female need more protein than a non-pregnant 25 year old female? 1b) A hammer hits a nail, what is the size of ...

chemistry

given this reaction N2O5 -> 2 N2O + 1/2 O2 all gases and given the initial pressure (P Initial) and total pressure (P total)at any time, relate the partial pressure of N2O5 (PP N2O5) to P total for any time during this reaction. Consider gas kinetics. My teacher says the ...

Chemistry

Ammonium ion (NH4^+) reacts with nitrite ion (NO2^-) to yield nitrogen gas and liquid water. The following initial rates of reaction have been measured for the given reactant concentrations. Expt. # [NH4^+] [NO2^-] Initial rate (M/hr) 1 0.010 0.020 0.020 2 0.015 0.020 0.030 3 ...

Chemistry

The free energy of a single electron falling through a potential difference of one volt is 1 electronvolt (eV). Therefore, on a per electron basis, x volts → x eV. Calculate the maximum wavelength of light (in nanometers) that provides enough energy to an electron to ...

physics

A car at the Indianapolis 500 accelerates uniformly from the pit area, going from rest to 260 km/h in a semicircular arc with a radius of 210 m. Determine the tangential and radial acceleration of the car when it is halfway through the turn, assuming constant tangential ...

Chemistry

Just a few questions about rates of reaction. A) Why are the units for average and instantaneous rates the same? -because they are both measures of how quickly a reaction is occuring per unit time B) For a given set of data, two students determined different average reaction ...

Chemistry

Can you please someone check my answer for me? I don't know how to start thses answer. Chemistry is not my things. Please give me answers. :( a)Determine the number of grams in 0.750 moles of the compound Iron(II)phosphate: Fe3(PO4)2. Answer: ? b)How many atoms of iron are in ...

chem PLEASE HELP

WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared to the size of the ...

Math

Can someone please check my work? Write the slope-intercept (y = mx +b) form of the equation from the information given. 1. Slope = ½ and b = -3 Y=1/2-3 2. Slope equals 2 and the line goes through the point (-1, 3) Y=2x+5 3. The line goes through the points (8,5) and (9, 6) Y...

Chemistry 1150

Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reaction: NH4NO3(s)→NH+4(aq)+NO...

Can somehelp me with this ASAP plz?!?!?! Stats

For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more students than any other ...

statistics

For a particular sample of 53 scores on a psychology exam, the following results were obtained. First quartile = 44 Third quartile = 68 Standard deviation = 8 Range = 55 Mean = 54 Median = 54 Mode = 71 Midrange = 64 I. What score was earned by more students than any other ...

Biology

In the following chemical reaction, what is carbon dioxide (CO2)? 12 H20 + 6 CO2 -> 1 glucose molecule + 6 O2

Chemistry

Given that E^o = 0.52 V for the reduction of Cu+(aq) + e - (yields) Cu(s) Calculate E^o, (delta)G^o and K for the following reaction at 25°C. 2Cu2+(aq) (yields) Cu2+(aq) + Cu(s)

chemistry

What is the oxidizing agent in the following reaction? Cl2 (g) + 2Na+ (aq) + 2Br- (aq) --> 2Na+ (aq) + 2Cl- (aq) + Br2 (l)

science(chemistry)

complete the following reaction: 1.CH3-CH-_CH2+H2O 2.CH2-CH2+Br2

chemestry

How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction? 4Fe(s)+3O2(g) - 2Fe2O3(s)

chemistry

How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction? 4Fe(s)+3O2(g) - 2Fe2O3(s)

chemistry

Complete the following fission reaction 1n0 + 235U92 → 131Sn50 + ? + 2 1n0 + energy

chemistry

Complete the following fission reaction 1n0 + 235U92 → 131Sn50 + ? + 2 1n0 + energy

CHEMISTRY

A voltaic cell is constructed that uses the following reaction and operates at 298 K: 2 Al(s) + 3 Mn^2+(aq) 2 Al^3+(aq) + 3 Mn(s). What is the potential, E, of this cell when [Mn^2+] = 0.10 M and [Al^3+] = 1.5 M?

chemistry

If 6.30 moles of C5H12 reacts with excess O2, how many moles of CO2 will be produced in the following combustion reaction?

chemistry

. In the following reaction: Fe2O3 + 3C → 2Fe + 3CO; how many grams of C are needed to react with 16.5 g Fe2O3?

Chemistry

Draw the product(s) of the following reaction CH3-CH2-C(triple bond)C-CH2 ---------> ? (Na/NH3)

language art pllz help

1. Which of the following would most likely connect with the speaker of "Growing Pains"? (1 point)a teen whose parents are going through a difficult divorce a teen who has let down one of her best friends a teen whose mother is often too busy to spend time with him 2. What ...

college math

During the last hour, a telemarketer dialed 20 numbers and reached 4 busy signals, 3 answering machines, and 13 people. Use this information to determine the empirical probability that the next call will be answered in person.

psychology

To gain acceptance, ahypothesis must be: a. suggested by a credible authority. b. kept secret until the research is completed. c. imaginative and appealing. d. backed by empirical evidence. i choose the answer d is that correct. ASsp

chemistry

the equilibrium constant of the decomposition of NOCL is 1.6*10^-5. calculatethe concentration of all species at equilibrium if initially 3.52 mol of NOCL is placed in a 5.00 L container

Chemistry

separate this redox reaction into its component half-reactions. O2 + 4Cu-->2CuO Oxidation half-reaction: ? Reduction half-reaction: ? I believe that the Oxidation is copper and that reduction is oxygen. So I tried to write it as 4Cu^+ --> 4Cu + 4e^- O2^2- +4e^- ---> ...

Chemistry

An equilibrium mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] = 3.77 10-3 mol/L, [O2] = 4.30 10-3 mol/L, and [SO3] = 4.13 10-3 mol/L. Calculate the equilibrium constant, K, for the following reaction. 2 SO2(g) + O2(g) ---> 2 ...

Chemistry help

I am not to sure how to approach the problem... Hydrazine is used as a rocket fuel because its reaction with oxygen is extremely exothermic: N2H4(liquid) + O2(g) ==> N2(g) + 2H2O(liquid) ΔH(reaction) = -615 kJ mol-1 What is the enthalpy of this reaction if water were ...

organic chemistry

The solubility of a compound is 59g per 100mL in boiling methanol and 30g per 100mL in cold methanol, whereas its solubility in water is 7.2g per at 95 degrees Celsius and 0.22g per 100mL at 2 degrees Celsius. Which solvent would be better for recrystallization of the compound...

Chemistry-Dr.Bob

Since most chemical reactions are conducted in containers open to the armisphere, why is the energy transfer associated with a chemical reaction generally expressed as the change in enthalpy? Is it because the enthalpy of reaction measures the change in energy of a chemical ...

algabra

I take a trip in my car. I want to go 960 miles in one day. The time t, in hours, that it takes to travel 960 miles is given. I will be going 70 or 75 miles an hour so the speed is r. How long will it take me to get to where I am going?

Chemistry HELP

Complete combustion of 3.30 g of a hydrocarbon produced 10.2 g of CO2 and 4.68 g of H2O. What is the empirical formula for the hydrocarbon? I did the calculation and the ratio comes out to C: 1 H: 2.24 So I thought the answer is CH2 but apparently its wrong. Anyone help..

penketh high

Laughing Gas, N2O, is made by the careful decomposition of ammonium nitrate NH4NO3 (s) = N20 (g) + 2H20 (g) How many grams of N2O can you obtain? How many dm3 of stream would also be produced?

Chemistry

The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after seconds have passed.

Chemistry

The decomposition of hydrogen iodide on a gold surface at 150 oC HI(g) ½ H2(g) + ½ I2(g) is zero order in HI with a rate constant of 1.20E-4 Ms-1. If the initial concentration of HI is 0.575 M, the concentration of HI will be 0.116 M after how many seconds have passed?

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