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N2H4(g) + H2(g) 2 NH3(g)

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College Chemistry
In a reaction vessel, the following reaction was carried out using 0.250 mol of NH3(l) and 0.100 mol of N2(g). 4NH3(l) + N2(g) ¡ú 3N2H4(l) Which of the following represents the composition in moles in the vessel when the reaction reaches completion? ¡Ö0 mol NH3, 0.038 mol ...

Enthalpy of Formation
N2H4(g) + H2(g)--> 2 NH3(g) H1 = –1876kJ 3 H2(g) + N2(g)--> 2 NH3(g) H2 = –922 kJ The H.f for the formation of hydrazine: 2 H2(g) + N2(g)--> N2H4(g) will be______kj/mol I am very confused here. I thought I would just add H1 and H2 and divide by the molar mass of ...

Chemistry
Which pair of samples contains the same number of hydrogen atoms two moles of NH3 and three moles of N2H4 two moles of NH3 and one mole of N2H4 four moles of NH3 and three moles of N2H4 one mole of NH3 and one mole of N2H4

Chemistry
Please :) N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be_____kJ/mol.

Chemistry
Please :) N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be_____kJ/mol.

Chemistry
N2H4(g) + H2(g) ---> 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) ---> 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be _________ kJ/ mol.

Chemistry
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be ______ kJ/mol

Chemistry
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be _____ kJ/mol.

Chemistry
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be

Chemistry
Find number of hydrogen atoms: 1 mol of NH3 1 mol of N2H4 4 mol of NH3 3 mol of N2H4

chemistry
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ 3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g) + N2(g) N2H4(g) will be ? kJ/mol. Turn equation 1 around and change the sign of H1. Add to equation 2, cancel like molecules appearing on both sides...

chem
Calculate the equilibrium concentration of NH3,Cu^2+,[ Cu(NH3)]^2+ ,[Cu(NH3)2]^2+,[Cu(NH3)3]^2+,and[Cu(NH3)4]^2+ in a solution made by mixing 500.0 ml of 3.00 M NH3 with 500.0 ml of 2.00*10^-3 M Cu(NO3)2. The sequential equilibria are Cu^2+ +NH3---->[Cu(NH3)]^2+ ka1=1.86x10...

chemistry
Hess¡¯ law says that when we add reactions together we can also add the enthalpies. Given the following set of reactions, use Hess¡¯ Law to calculate the enthalpy of the reaction given below. N2H4 + H2 ¡æ 2 NH3 ¥ÄH¡Æ = ? N2 + 3 H2 ¡æ 2 NH3 ¥ÄH¡Æ = -92.38 kJ/mol...

chemistry(oxidation)
ok,I really don't understand the whole oxidation numbers thing my question is state the oxidation number for nitrogen in the following NH3= -3 NO2-1= -1 N2= 0 NO2Cl= 5 N2H4 -2 am I correct? NH3= -3 NO2-1= -1 No, oxygen is -2, so N is +3 N2= 0 NO2Cl= 5 N2H4 -2 http://www....

chemistry
5. The industrial production of hydroiodic acid takes place by treatment of iodine with hydrazine (N2H4): 2I2 + N2H4 → 4HI + N2 a.How many grams of I2 are needed to react with 36.7 g of N2H4

Chemistry
Calculate Activation Energy, Ea, for each of the reactions, above? ln(k)= -2.24x10^4(1/T)-1.8. The reactions are Step 1: 2H2 + N2 -> N2H4, Step 2: N2H4 + H2 -> 2NH3, Overall: 3H2 + N2 -> NH3. This is all the information i have. i Don't know how to solve for the ...

college chem
The cation M2+ reacts with NH3 to form a series of complex ions as follows: M2+ + NH3 M(NH3)2+ K1 = 102 M(NH3)2+ + NH3 M(NH3)2 2+ K2 = 103 M(NH3)2 2+ + NH3 M(NH3)3 2+ K3 = 102 A 1.0 × 10–3 mol sample of M(NO3)2 is added to 1.0 L of 15.0 M NH3 (Kb = 1.8 × 10–5). What is ...

chemistry
NH3(aq)+N2H4(aq)--->.....?

chemistry
A mixture of hydrogen peroxide, H2O2, and hydrazine, N2H4, can be used as a rocket propellant. The reaction is: 7 H2O2(g) + N2H4(l) ® 2 HNO3(aq) + 8 H2O(l) a) How many moles of H2O2 react with 0.477 mol N2H4? [1] ___________ b) How many grams of HNO3 can be produced in a ...

chemistry
Please help! N2H4 is decomposed in a closed container according to this reaction: N2H4 → N2 + 2H2 . If the temperature is constant and the initial pressure of N2H4 is 800mm, what will the pressure in millimeters be after the decomposition to N2 + 2H2?

chemistry
Put the following compounds in order of INCREASING oxidation number of N: N2H4, NO3-1, N2, NH3 ?

Chemistry
Hydrazine, N2H4, is a colorless liquid used in rocket fuel. What is the enthalpy change for the process in which hydranzine is formed from its elements? N2(g) + H2(g) => N2H4(l) Use the following reactions and enthalpy changes: N2H4 + O2 => 2H2O DeltaH = -622.2KJ H2 + 1/...

chemistry
Calculate the delta H for the reaction N2H4(l)+ O2(g) --> N2(g) + 2H20(l) Given the following data: 2NH3(g) + 3N20(g) --> 4N2(g) + 3H20(l) N20(g) + 3H2(g) --> N2H4(l) + H20(l) 2NH3(g) + 1/2O2(g) --> N2H4(l) + H20(l) H2(g) + 1/2O2(g) --> H20(l)

chemistry
In a reaction vessel, the following reaction was carried out using 0.250 mol of NH3 and 0.100 mol of N2, 4NH3(l) + N2 (g) = 3N2H4 (l) what is the compositon in moles in the vessel when the reaction is completed? Is the answer: 0 mol NH3, 0.063 mol N2, and 0.188 mol N2H4?

chemistry
A fuel mixture used in the early days of rocketry is composed of two liquids, hydrazine (N2H4) and dinitrogen tetraoxide (N2O4), which ignite on contact to form nitrogen gas and water vapor. 2 N2H4 + N2O4 --> 3 N2 + 6 H2O If 1.50 x 102 g of N2H4 and 2.00 x 102 g of N2O4 are...

chemistry
determine how many grams of N2 are produced by 9.12 g of H2O2 and 6.90 g of N2H4. 2H2O2+N2H4= 4H2O+N2

chem
N2H4 is decomposed in a closed container according to this reaction: N2H4 → N2 + 2H2 . If the temperature is constant and the initial pressure of N2H4 is 800mm, what will the pressure in millimeters be after the decomposition to N2 + 2H2? Im having trouble with this problem ...

Chemistry
in the presence of NH3, Cu+2 forms the complex ion [Cu(NH3)4]+2. If the equilibrium concentrations of Cu+2 and [Cu(NH3)4]+2 are 1.8x10^-17M and 1.0x10^-3M respectively, in a 1.5 M NH3 solution, calculate the value for the overall formation constant of [Cu(NH3)4]+2. Cu+2(aq)+ ...

Intro to Chemistry
Given the following chemical equation, determine how many grams of N2 are produced by 8.58 g of H2O2 and 5.62 g of N2H4. 2H2O2(l)+N2H4(l)=4H2O(g)+N2(g)

Chemistry
Calculate the pH of a solution made by mixing 60.0 ml of 0.80 M N2H4 (a weak base) with 50.0 ml of 0.50 M HCl. (Kb for N2H4=1.7 x 10^-6) Can I use the Henderson Hasselbach equation here?

chemistry
Calculate the value of the thermodynamic equilibrium constant for the following reactions at 25.0 °C. (a) N2H4(g) + 2O2(g) 2NO(g) + 2H2O(g) Kp = H20=-228.6 NO= 86.69 N2H4= 159.3 02 = 0

Honors Chemistry
"How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2? N2 + 3H2 ---> 2NH3 ==> 28 g N2 x (1 mol N2/14.0 g N2) x (2 mol NH3/1 mol N2) x ( 17.0 g NH3/ 1 mol NH3) = 68 g NH3 25 g H2 x ( 1mol H2/2.0 g H2) x (2 mol NH3/3 mol H2) x (17 g NH3/2 ...

Chemistry
Ok I think I figured this out but im not sure if its right please help. Thanks(= Determine the oxidation number for nitrogen in each of the following a)NH3 = -3 b)NO2-1 = 2 c)N2= 2 d)NO2Cl= 2 e)N2H4= 2 The first one is right. All must add to zero for a compound OR to the ionic...

Chemistry
So I have had several homework problem like this and managed to solve them easily, but these two problems I cannot get the correct answer for. Using a Table of thermodynamic data, calculate the change in Gibbs free energy for each of the following reactions. In each case ...

chemistry
50.0 mL of a 0.00200 M Cd^2+ solution is titrated with 0.00400 M EDTA in the presence of 0.0750 M NH3 buffered at pH = 9.00. Determine pCd^2+ when 28.5 mL of EDTA solution have been added. Cd^2+ + Y^4- ? CdY^2- Kf= 3.16 x 10^16 Cd^2+ + NH3 ? CdNH3^2+ ß1 = 3.24 x 10^2 Cd^2+ + ...

Chemistry
I am really confused on this problem pleas help me. N2H4(l)+O2(g)(arrow)N2(g)+2H2O(g) a. How many liters of N2 (at STP) form when 1.0 kg N2H4 react with 1.0 kg O2? b. How many grams of excess reagent remain after the reaction? 1 kg of N2H4 is 1000g/(32g/mol) = 31.25 moles of ...

chemistry
what is the oxidation number for nitrogen in the following? NH3 NO2 1- N2 NO2Cl N2H4 We will be happy to critique your thinking or work. I don't even have a clue as to how to work it out.

chemistry
N2H4 reacts with oxygen to yield nitrogen gas and water . The reaction of 3.80g n2h4 evolves 73.7kj of heat. what's the enthalpy change per mole of hydrazine combusted.

Chemistry
N2H4 + 2H2O2= N2 + 4H2O What are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water

Chemistry
Consider this equilibrium N2(g) + H2(g) <==> NH3(g) +94 kJ The equilibrium law exoression for the balanced chemical equationwould be A. [N2][H2]/[NH3] B. [NH3]/[H2][N2] C. [NH3]2/[H2][N2] D. [NH3]2/[H2]3[N2] E. 2[NH3]2/3[H2]3[N2]

Chemistry
A 2.25 g sample of hydrazine, N2H4, is burned in a bomb calorimeter that contains 6,402.45 g of H2O, and the temperature increases from 25.00° C to 26.17° C. The heat capacity of the calorimeter is 3.64 kJ/° C. Calculate Delta E for the combustion of N2H4 in kJ/g.

chemistry
what is the Molarity (M) of a 0.87m aqueous solution of ammonia, NH3? The density of the solution is 0.823 g/mL. Answer: 0.71 M So I have: 0.823 g H2O+NH3/1 ml H2O+NH3 17.034 g NH3/1 mol 18.016 g H2O/1 mol 0.87 mol NH3/1 kg H2O I've tried this several ways and I can't seem to ...

AP Chemistry
For the reaction ? N2H4+? O2 →? N2+? H2O , what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 14.75 g of N2H4 (32.0452 g/mol) and 4.31 g of O2 (31.9988 g/mol)? Answer in units of g

chemistry
7H2O2(aq) + N2H4(g) ¨ 2HNO3(g) + 8H2O(g) If the rocket engine contains 1500.0 grams of H2O2 and an excess of N2H4, what volume of water vapor will be produced when the rocket fires up to a temperature of 540‹C and a pressure of 1.2atm?

chemistry
Determination of Kf of Cu(NH3)4 (aq) with given 10mL of 6M NH3 mix with 40mL of 1M Cu. This is what I have so far: nCu= .040L x 1= .040mol nNH3= .010L x 6= .060mol Cu^2+ + 4NH3 -> Cu(NH3)4 .040 .06 0 -.040 4(-.040) +.040 0 -.1 .040 [Cu(NH3)]= .040/(.010+.040)=.80M for Kf=[...

Chemistry- Dr.Bob222
Question 2 What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) + Cl-(aq) Is the answer 0.557 M?

Chemistry- Dr.Bob222
I do not quiet understand what you said. Could you show your work. What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) + Cl-(aq)

Chemistry
CoCl2(aq) + NH3(aq) = ? Cu(NO3)2(aq) +NH3(aq) = ? CuSO4(aq) +NH3(aq) = ? Could some one please tell me what the answers are?? I am stuck... what do I do with the NH3??? Thank you!!!!!

CHEMISTRY
Method for how to get answer? Thank you! For the equilibrium reaction below. To what is Kc equal? N2(g) + 3H2(g) ↔ 2NH3(g) a. [N2] + 3[H2] ------------------ 2[NH3] b. [N2][H2]3 ------------------ [NH3]2 c. 2[NH3] --------------- [N2]+ 3[H2] d. [NH3]2 --------------- [N2...

Chemistry
srry I placed the question in the wrong spot. The equation is 2NH3 <=> N2 + 3H2 1 mole of NH3 injected intoa 1L flask 0.3 moles of H2 was found the concentration of N2 at equlibrium is 0.1M how do I find the concentration of NH3 at equlibrium? (N2) = 0.1 (H2) = 0.3 ...

chemistry
hi kinda stuck :) 100.0 ml of 0.100 M H2NNH2 (kb =3.0 x10^-6) is titrated by 0.200M calculate PH after adding the following volumes of HNO3 a 0 b 25.0 ml c 50.0 ml d 60.0 ml ----------------------------------------- A) N2H4 + HNO3 --> N2H5+ + NO3- .100 0 0 3.0 x 10-6= x2/....

chemistry
for the complex ion equilibria between AgCl and NH3, why does NH3 replace Cl- and how do we know that we have to add 2 infront of NH3? Is the product a salt compound? Ag + 2NH3= Ag(NH3)2+

chemistry
for the complex ion equilibria between AgCl and NH3, why does NH3 replace Cl- and how do we know that we have to add 2 infront of NH3? Is the product a salt compound? Ag + 2NH3= Ag(NH3)2+

Chem
Determine the heat evolved (in kJ and in J) when 10.0 g of NH3(g) are created. Show all units and conversion factors. 10.0 gNH3 (1 mole nh3/17.0 g nh3)(-46.11 kj/1 mol nh3) = 23.11 kj -27.12 kj (1000j/1kj) -27,120 Is this correct?

Chemistry
Determine the value of the equilibrium constant,Kgoal , for the reaction N2(g)+O2(g)+H2(g)<=> (1/2)N2H4(g) + NO2(g) Kgoal=? by making use of the following information: 1.N2(g)+O2(g)<=>2NO(g), K1=4.1010x10^-31 2.N2(g)+2H2(g)<=>N2H4(g), K2=7.40x10^-26 3.2NO(g)+...

Chemistry
Can [Cu(NH3)2]^+ and/or [Cu(NH3)3]^+ be oxidised by air to become [Cu(NH3)2]^2+ and [Cu(NH3)3]^2+ respectively?

chem- i reallyneed help
Consider the following equations. N2H4(l) + O2(g) N2(g) + 2 H2O(l) ÄH = -622.2 kJ H2(g) + 1/2 O2(g) H2O(l) ÄH = -258.5 kJ H2(g) + O2(g) H2O2(l) ÄH = -187.8 kJ Use this information to calculate the enthalpy change for the reaction shown below. N2H4(l) + 2 H2O2(l) N2(g) + 4 ...

chemistry-Thermochemistry (grade 12)
calculate enthalpy of H for the reaction N2H4(l) + 2H2O(l) -> N2(g) + 4H2)(l) Given the reactions N2H4(l) + O2(g) -> N2(g) + 2H2O(l) Enthalpy of H = -6.22.2 kJ H2(g) + (1/2)O2(g) -> H2O(l) enthalpy of H = -285.8 kJ/mol H2(g) + O2(g) -> H2O2(l) enthalpy of H = -187....

chemistry-Thermochemistry (grade 12)
calculate enthalpy of H for the reaction N2H4(l) + 2H2O(l) -> N2(g) + 4H2)(l) Given the reactions N2H4(l) + O2(g) -> N2(g) + 2H2O(l) Enthalpy of H = -6.22.2 kJ H2(g) + (1/2)O2(g) -> H2O(l) enthalpy of H = -285.8 kJ/mol H2(g) + O2(g) -> H2O2(l) enthalpy of H = -187....

Chemistry
Reaction of hydrazine with chlorate ions N2H4(g) + ClO3-(aq) → NO(g) + Cl-(aq) Balanced: 3N2H4(g) + 4ClO3-(aq) → 6NO(g) + 6H2O(l) + 4Cl-(aq) Reducing agent: ClO3- Oxidizing agent: N2H4 Right?

chemistry
Some spacecrafts use hydrazine (N2H4) as fuel and is burned according to the following reaction: N2H4(l)+N2O4(g)=>2 N2O(g)+2 H2O(g) Calculate the DHrxn° for this reaction using the standard enthalpies of formation from Appendix IIB. Calculate your answer to 4 sig figs

please check my answer
Consider the following equations. N2H4(l) + O2(g) N2(g) + 2 H2O(l) ÄH = -622.2 kJ H2(g) + 1/2 O2(g) H2O(l) ÄH = -258.5 kJ H2(g) + O2(g) H2O2(l) ÄH = -187.8 kJ Use this information to calculate the enthalpy change for the reaction shown below. N2H4(l) + 2 H2O2(l) N2(g) + 4 ...

chemistry
1K2PtCl4+2(NH3)->1Pt(NH3)2Cl2+2KCl what is the percent yield, when 34.5 grams of NH3 react with excess K2PtCl4 if 76.4 g of Pt(NH3)2Cl2 are actually produced?

Chemistry
1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g) If you start with: 5.0 x 10^4 g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yield)? 2) How many moles of water can be produced? 2) What mass of dinitrogen tetroxide (N2O4) is needed...

Chemistry
1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H2O(g) If you start with: 5.0 x 10^4 hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yield)? 2) How many moles of water can be produced? 2) What mass of dinitrogen tetroxide (N2O4) is needed? ...

Chemistry- Dr.Bob222
What is the solubility of AgCl in 10 M NH3? The Kf of Ag(NH3)2+ from AgCl(s) in aqueous NH3 is 0.0031, which is for the balanced reaction shown below. AgCl(s) + 2 NH3(aq) → Ag(NH3)2+(aq) + Cl-(aq) Work: Ksp = x^2 /(2x+10)^2 = 1.8 x 10^-10 Now I am confused....... At ...

Chemistry
Balanced Chemical Equation: 1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H20(g) If you start with: 5.0 x 10^4g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yielded)? 2) How many moles of water can be produced? 3) What mass of ...

Chemistry
Balanced Chemical Equation: 1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H20(g) If you start with: 5.0 x 10^4g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yielded)? 2) How many moles of water can be produced? 3) What mass of ...

Chemistry
An experiment was done to determine the formula and formation constant of a metal ammine. The data were graphed giving a straight line plot with an equation of y = -5.9484x - 11.447. What is the correct forumla for this metal amine? M(NH3)6+ M(NH3)5+ M(NH3)4+ M(NH3)2+

chemistry
An experiment was done to determine the formula and formation constant of a metal ammine. The data were graphed giving a straight line plot with an equation of y = -5.9484x - 11.447. What is the correct forumla for this metal amine? M(NH3)2+ M(NH3)5+ M(NH3)6+ M(NH3)4+

chemistry
Find (triangle)H for N2H4 + CH4O > C2HO + N2 + 3H2 2NH3 > N2H4 + H2 22.5 kJ 2NH3 > N2 + 3H2 57.5 kJ CH20 + H2 > CH4O 81.2 kJ

chemistry
Nitrogen (N2) and hydrogen (H2) react to form ammonia (NH3). Consider a mixture of six nitrogen molecules and six hydrogen molecules in a closed container. Assuming the reaction goes to completion, what will the final product mixture be? number of NH3 molecules number of N2 ...

chemistry
At a certain temperature, 4.0 mol NH3 is introduced into a 2.0 L container, and the NH3 partially dissociates by the reaction. 2 NH3(g) N2(g) + 3 H2(g) At equilibrium, 2.0 mol NH3 remains. What is the value of K for this reaction?

AP Chem
At a certain temperature, 4.0 mol NH3 is introduced into a 2.0 L container, and the NH3 partially dissociates by the reaction. 2 NH3(g) N2(g) + 3 H2(g) At equilibrium, 2.0 mol NH3 remains. What is the value of K for this reaction?

Chemistry
Is this the correct equation for the formation of [Co(NH3)5(ONO)]^2+ from [Co(NH3)5Cl]^2+ ... [Co(NH3)5Cl]^2+ + NO2 --> [Co(NH3)5(ONO)]^2+ + Cl- I'm a bit unsure because the charges don't balance

ap chem
NH3 + H20 <---> NH4+ + OH- this is aqueous solution. In 0.0180 M nH3, THE [OH-] is 5.60 X 10^-4 M. it is assumed that the volumes are additive. Determine the value of the base ionization constant, kb, for NH3. i am not sure how to approach this problem. i don't ...

Chemistry
If 2.40 g of CuSO4 is dissolved in 8.57 x 10^2 mL of 0.360 M NH3, calculate the concentrations of Cu^2+, NH3, and Cu(NH3)4^2+???? Don't even know where to start.

chemistry
How many moles are in 1.50 x 1023 molecules NH3? A. 2.49 x 10 -1 mol NH3 B. 2.49 x 101 mol NH3 C. 2.65 x 10 -1 mol NH3 D. 2.78 x 10 1 mol NH3 maybe B

Chemistry
How many moles are in 1.50 x 1023 molecules NH3? A. 2.49 x 10 -1 mol NH3 B. 2.49 x 101 mol NH3 C. 2.65 x 10 -1 mol NH3 D. 2.78 x 10 1 mol NH3

chem
For the reaction 2 N2(g) + 3 H2(g) → 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation? the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form NH3 the weight of NH3 obtained if 4.2 mol ...

Chemistry
Copper(I) ions in aqueous solution react with NH3(aq) according to: Cu+(aq) + 2NH3(aq) > Cu(NH3)2+ (aq) Kf=6.3x10^10 M^-2 Calculate the solubility (in g·L–1) of CuBr(s) in 0.65 M NH3(aq).

Chemistry
Ammonia, NH3, is a stronger ligand than Cl- but weaker than CN-. Complete the balanced equations for the reactions that are predicted to occur. CoCl6^3- (aq) + CN- (aq) ---> Co(NH3)6^3+ (aq) + Cl- (aq) ---> Co(CN)6^3- (aq) + NH3 (aq) --->

chemistry
calculate the OH- concentration in (a) 1.0M NH3 and (b) a solution that is 1.0M in NH3 and also 1.0M in NH4Cl. (Kb = 1.8 x 10^-5 for NH3)

CHEMistry help plz
a coordination compound of cupric ion can be described asa Cu(NH3)x SO4. it is known to be 29.9% NH3. what is the value of X? 4. Check it to see if that gives 29.9% NH3.

chemistry
Copper(I) ions in aqueous solution react with NH3(aq) according to Cu+(aq) + 2NH3(aq) -->Cu(NH3)2^+ Kf = 6.3x10^10 Calculate the solubility (in g·L–1) of CuBr(s) (Ksp = 6.3× 10–9) in 0.41 M NH3(aq).

chemistry
N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change

chemistry
N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change

chemistry
N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change

Chem
A concentrated solution of ammonia is added to a solution of zinc oxide? NH3 + ZnI2 => ?? An excess of nitric acid solution is added to a solution of tetraaminecopper (II) sulfate. HNO3 + ? => ?? Zn forms the Zn(NH3)4^+2 ion. It MAY form some Zn(OH)2 at small amounts of ...

Chemistry
Combine the Ksp and Kf equilibria for AgCl and Ag(NH3)2+ respectively and demonstrate Hess's law to determine the equilibrium constant for the dissolution of AgCl in NH3. AgCl + 2NH3 --> Ag(NH3)2 + Cl- K= (Ksp)(Kf) If there is only one mole of both AgCl and Ag(NH3)2, both ...

Chemistry
Arrange these acids in terms of increasing acidity: CH3COOH, NH3+CH2COOH, CH3CONHCH2COOH Dr.Bob asked me what NH3+CH2COOH is.NH3+CH2COOH is obtained when 1 mol of glycine is added with a very strong acid,which results in both the amino & carboxyl groups to be fully protonated...

CHEMISTRY HELPPPP!!!!!!!!!
Consider the decomposition of NH3 (g). 2 NH3 (g) → N2 (g) + 3 H2 (g) The reaction is catalyzed on a surface of either tungsten or osmium. The activation energies for the catalyzed and uncatalyzed reactions are given below. W Ea = 163 kJ/mol Os Ea = 197 kJ/mol No catalyst...

chemistry
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution before the addition of any KOH. The Kb of NH3 is 1.8 × 10-5. I thought that I would need a second volume to find the moles of NH3?

Chemistry
Hello I need help with this excersise: How many moles of NH4Cl are neccesary to add to 1 liter of solution of Co2+ 0,20 M in order to prevent the precipitation when the solution is saturated with H2S (0,1M) and the pH is 7,50. It 's known that pKbNH3=4,75 ; Kps(CoS)=2,0×10^-...

chemistry
from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O How many molecules of water are produced when 2.25 moles of ammonia are completely reacted? The equation tells us that 4 mol NH3 will produce 6 mols water. That means 2 mols NH3 will produce 3 mols water. How did we do that? 2...

science
Calculate the solubility of silver chloride in 10.0 M ammonia given the following information: Ksp (AgCl) = 1.6 x 10^–10 Ag+ + NH3--->AgNH3+ K=2.1x10^3 AgNH3+ + NH3-----> Ag(NH3)2+ K=8.2x10^3 Answer : 0.48 M Calculate the concentration of NH3 in the final equilibrium ...

Chemistry
Calculate the molarity and the molality of an NH3 solution made up of 30 g of NH3 in 70 g of water. The density of the solution is 0.982 g/ml. Molar Mass of NH3 = 17.04 g

HELPP !!
Copper(I) ions in aqueous solution react with NH3 according to Cu^+ + 2NH3 --> Cu(NH3)2^+ Kf=6.3x10^10 Calculate the solubility (in g/L) of CuBr (Ksp=6.3x10^-9) in 0.81 M NH3.

Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22-x)= 2.9 X 10^9

Chemistry
A chemical technician prepares Ni(NH3)6Cl2 by adding 4.55 g of solid NiCl2·6H2O to 25 mL of 6.0 M aqueous NH3. What is the maximum mass of Ni(NH3)6Cl2 that will be produced? how would I do this question?

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