# how many moles of H2O molecule are contained in 3.00 mol of FeSO4*5H2O

17,453 results

chemistry
How many moles of water are contained in 0.250 mol of CuSo4 x 5H2O?

Chemistry
How many moles of oxygen atoms are contained in 1.86 x 10-2 mol CuSO4·5H2O

general chemistry
If 1.0 g samples of each compound were dehydrated, which sample would lose the greatest mass of water? Molar Masses: LiCl* H2O= 60. g mol–1 MgSO4* H2O= 138. g mol–1 FeSO4*H2O= 170. g mol–1 SrC2O4*H2O=194. g mol–1

chemistry
3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of the excess reactant remain if 2.00 moles of H2O(l) and 5.00 moles of NO2(g) are used? Question 30 options: 1.67 mol H2O(l) 3.00 mol NO2(g) 4.00 mol NO2(g) 1.00 mol NO2(g) 0.33 mol H2O(l)

Chemistry
Calculate how many grams of FeSO4.7 H2O (MW = 278.02 g/mol) will be needed to prepare 1 mL of a 0.2 M FeSO4 solution? Is that .0304g?

Chemistry
Calculate how many grams of FeSO4 . 7 H2O (MW = 278.02 g/mol) will be needed to prepare 1 mL of a 0.2 M FeSO4 solution? Am I right when I say we'd need

Chemistry
Determine the mass of PbSO4 produced when 10mL of 0.2M CuSO4 reacts with 10mL of 0.2M Pb(NO3)2? Balance the equation CuSO4 + Pb(NO3)2 → PbSO4 + Cu(NO3)2 Find the number of moles for CuSO4 c=n/v n=c × v n=0.2 × 0.01 n=0.002 mol Since it is a 1:1 ratio, the number of ...

Chemistry
For the unbalanced reaction: FeSO4 (s) → Fe 2O3 (s) + SO2 (g) + O2 (g) ; how many total moles of gas are produced from the decomposition of 9.98 mol FeSO4 (s)?

chemistry
Calculate the mass of the solid you must measure out to prepare 100 mL of 0.025 M CuSO4. Note that this salt is a hydrate, so its formula is CuSO4⋅5H2O. You must include the waters of hydration when calculating the formula weights. Would the following set-up yield the ...

Chemistry
Hi, could someone please take a look at my solution to this problem and let me know if it's correct? I would really appreciate some help. Calculate the theoretical yield for K3[Fe(C2O4)3]*3H2O; 491.258 g/mol Mass of Ferrous Ammonium Sulfate Hexahyrdreate: 4.01 g, 392.17 g/mol...

Intro Chemistry
Which molecule based on the following enthalpies is the most stable? Molecule A: -70 kJ/mol Molecule B: 100 kJ/mol Molecule C: 145 kJ/mol Is it Molecule A? Isn't the lower the enthalpy the more stable the molecule? Thank You

Chemistry
how many moles of water are contained in 0.250 mile of CuSO4 * 5H2O? please help me

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 ...

help with stochiometry
can someone help me out with this one? balanced equation is: 2H2 + O2 > 2H2O My questions are: How many molecules of water are produced from 2.0 * 10 ^23 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen? OK. First, it depends on if you ...

Chemistry
Based on the following balanced equation: 2 NH3 + 2 O2 -->N2O + 3 H2O a. How many moles of O2 are required to react completely with 6.00 moles of NH3? b. How many grams of O2 are required to react completely with 6.00 moles of NH3? c. How many moles of H2O are produced ...

Chemistry
In a reaction vessel, 2.4 mol of Al(OH)3 and 5.3 mol of H2SO4 react. Products: Al2(SO4)3, H2O [I know...] Moles of Al2(SO4)3 in container:1.2mol Moles of H2O in container:7.2 mol [But not...] Moles of excess reactant in container:____mol how do i find it?

Chemistry
I don't really understand why unit analysis works. I found a simple example on a website (I can post the link in a comment if you want). It says, For example, convert 18 grams of water to moles. The molar mass of water is 18 g/mol; therefore : 18g H2O x 1 mol/18g H2O = 1 mol ...

Enthalpy Change Calculations
Find the heat of reaction (ΔH) for each of the following chemical reactions and note whether each reaction is exothermic or endothermic. 1. H2O(l) -> H2O(g) This is what I have so far: H2(g) + ½ O2(g) -> H2O(l) ΔH = -286.0 kJ/mol H2(g) + ½ O2(g) -> H2O(g...

Chem 2
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find nuber of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O ...

Chemistry 2
calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find nuber of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O that could ...

chemistry
Calculate how many moles of productwould be produced if .310 mol of the first reactant were to react completely. (a) CO2 + 4 H2 ¨ CH4 + 2 H2O CH4 _____ mol H2O _____ mol (b) C3H8 + 5 O2 ¨ 4 H2O + 3 CO2 H2O _____ mol CO2 _____ mol (c) 3 H2SO4 + 2 Fe ¨ Fe2(SO4)3 + 3 ...

Chemistry ?
How many moles are contained in a 4.67-L sample of gas at 30°C and 199 kPa? A. 1.7 mol B. 11.8 mol C. 0.37 mol D. 3.7 mol I guessed D, but I'm not sure.

chemistry
Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...

chemistry
I don't know how to do this How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the limiting reagent? Write the balanced equation. 2H2 + O2 ==> 2H2O 2 mols H2 + 1 mol O2 will produce 2 mol H2O. So 16 mols H2 will require 8 ...

chemistry
For the balanced equation shown below, how many moles of C4H10O reacted, if 0.5599 moles of H2O are produced? C4H10O+6O2 --> 4CO2+5H2O

Chem 2
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find nuber of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O ...

Chem 2 HELP
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find number of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O ...

Chemistry
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find number of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O ...

Chemistry
When 6200g of ethylene glycol and 16600g terephtalic acid reacted completely to generate poly(ethyleneterephtalate)(PET),how many grams of H20 generated? My working: mol of ethylene glycol = 6200g/(62g/mol) = 100 moles mol terephtalic acid = 16600g/(166g/mol) = 100 moles So,...

chem.(sci)
___NH3+___O2->N2+H2O (this is not balanced) how many moles of oxygen react with 0.23 moles of NH3? HOW many moles moles of N2 will be produced when reacted with 5 mol of O2?

chemistry
A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram-...

chemistry
So I posted this question yesterday and was told I had a few typos.... I fixed them and here is the question again... Please help me!!! A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are...

HARD chemistry
A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram-...

chemistry
3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of NO2(g) are required to react with 1.00 mole of water to produce 3.00 moles of nitric acid? Question 24 options: 6.00 mol 1.50 mol 2.00 mol Not enough water is available to produce 3.00 moles of nitric acid. 4.50 mo

Chemistry
So my chem professor had a slide with a question that follows: If you combine 100 ml of 0.10 M HCl and 100 ml of 0.10 M NaOH, and find that the temperature goes up 0.67 degrees K  What is ΔH° for the reac/on: OH(aq)- + H+(aq)->H2O(l)(c H2O= 4.18 J/°C sg, density of ...

Chem
How many carbon atoms are contained in each of the following number of moles: (a) 1.40 mol; (b) 5.70 mol?

chemistry
Consider this balanced equation 3H2+CO -> CH4+H2O. how many moles of CH4 can be obtained by reached 2.0mol of H2 with 2.0molCO according to this equation? <<Consider this balanced equation 3H2 + CO -> CH4+H2O. How many moles of CH4 can be obtained by reacting 2.0 ...

chemistry
An ice cube of mass 10g at -10C is added to the beaker containing 150mL of water at 88.5C. Assuming no heat is lost to the surrounding; calculate the equilibrium temperature for the liquid after the ice melts.(Heat of fusion for H2O = 6.01 kJ/mol. Heat of vaporization 40.67kJ/...

Chemistry
An ice cube of mass 10g at -10C is added to the beaker containing 150mL of water at 88.5C. Assuming no heat is lost to the surrounding; calculate the equilibrium temperature for the liquid after the ice melts.(Heat of fusion for H2O = 6.01 kJ/mol. Heat of vaporization 40.67kJ/...

Chemistry
Based on the following balanced equation: 2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O a. How many moles of CO2 are produced after complete reaction of 8.00 moles of C4H10? b. How many grams of CO2 are produced after complete reaction of 8.00 moles of C4H10? c. How many moles of H2O ...

A solution is prepared by dissolving 3.44 g of sucrose, C12H22O11, in 118 g of water. a) What is the molality of the resulting solution? b) What is the mole fraction of water in this solution? B) moles of h2o=118g/18(g/mol)=6.548 mol moles of c12h22O11= 3.44g/342.3(g/mol)=0....

Chemistry
How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data: Hfo(H2O(g))=-241.83 kJ/mol, ...

chem
Hydrogen and carbon dioxide react at a high temperature to give water and carbon monoxide. H2(g) + CO2(g) --> H2O(g) + CO(g) (a) Laboratory measurements at 986°C show that there are 0.11 mol each of CO and H2O vapor and 0.087 mol each of H2 and CO2 at equilibrium in a 1.0 ...

A solution is prepared by dissolving 3.44 g of sucrose, C12H22O11, in 118 g of water. a) What is the molality of the resulting solution? b) What is the mole fraction of water in this solution? B) moles of h2o=118g/18(g/mol)=6.5556 mol moles of c12h22O11= 3.44g/342.3(g/mol)=0....

chemistry
How many moles of nitric acid are produced starting from 5.00 moles of NO2(g) and 2.00 moles of water? Question 29 options: 4.00 mol 1.67 mol 7.50 mol 3.33 mol 10.0 mol

Chemistry
1)The chemical formula for aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin? How would I find this? 2)The gram molecular mass of oxygen is 16.0 g right? 3)How would I find the mass, in grams, of 3.01 x 10^23 molecules of water? 1. Add the atomic masses of the ...

Chemistry
Consider the reaction: CO(g) + H2O (g) <---> CO2(g)+H2(g) which of the following initial composition will NOT achieve equlibrium? a) 0.25 mol H2, 0.35 mol CO2, and 0.25 mol CO b) 0.25 mol CO, 0.75 mol H2O c) 1.0 mol of CO2 and 0.50 mol H2 d) 0.85 mol CO and 0.25 mol H2 ...

ap chemistry
The system CO2(g) + H2(g) *) H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. How many moles of CO2 must be added to the system to bring the equilibrium CO ...

AP Chemistry
The system CO2(g) + H2(g)<->H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. How many moles of CO2 must be added to the system to bring the equilibrium CO ...

CHemistry
im not sure how u solve these types of problems... How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? How many grams of NaOH are contained in 500ml of a .5M solution of NaOH? <<How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? >> A 0.1 ...

Chemistry Pretest
Consider the following balanced equation. 2 H2 + O2 ---> 2 H2O Which of the following statements is false? a) One molecule of O2 will react with 2 molecules of H2 b) One mole of O2 will react with 2 moles of H2 c) The complete reaction of 32.0 g of O2 will produce 2 moles ...

Chemistry
The enthalpy of combustion of butane C4H10 is described by the reaction: C4H10(g) + (13/2) O2(g) -> 4CO2(g) + 5H2O(g) ΔH°rxn = –2613 kJ/mol Given the following enthalpies of formation: ΔH°f[CO2(g)] = -393.5 kJ/mol ΔH°f[H2O(g)] = -241.8 kJ/mol Calculate the value of ...

chemistry
3CuCl2 *2H2O + 2Al = 3Cu + 2AlCl3 + 6H2O Determine the number of grams that should have been produced when 1.25g of copper (2) chloride dehydrate reacts with excess aluminum so i'm not really sure how you're supposed to calculate the number of grams with hydrates?? MCuCl2= 63....

Chem 11
So I did a lab determining the chemical formula of a hydrate. I really just need somebody to check this over for me. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g...

Chemistry
Consider the following reaction: 4NH3 + 7O2 (arrow) 4NO2 + 6H2O. A) How many moles of NH3 react with 5.64 mol of O2? B)How many moles of NO2 are obtained from 3.27 mol of O2? C) How many moles H2O will be produced from 8.95 g of NH3? D)How many grams of NH3 will be needed to ...

Chemistry
How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)? Please help. I've tried going (g of molecule/mol)x(1 mol of molecule/ 55.80g)but I'm not really sure what to do with this.

Chem (repost)
Hydrogen and carbon dioxide react at a high temperature to give water and carbon monoxide. H2(g) + CO2(g) --> H2O(g) + CO(g) (b) Suppose 0.052 mol each of H2 and CO2 are placed in a 1.5 L container. When equilibrium is achieved at 986°C, what amounts of CO(g) and H2O(g), ...

chem
The equilibrium constant Kc equals 5.90 for the reaction CH3COOH + C2H5OH <==> CH3COOC2H5 + H2O Find the molar concentrations of acetic acid, ethanol, ethyl acetate, and water at equilibrium when .10 M acetic acid and .20 M ethanol are allowed to equilibrate. I started ...

Science
Al(OH)3(s) + HCl(aq) AlCl3(aq) + H2O(l) How many moles of HCl are required to react with 0.470 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given. mol HCl What mass of HCl is required? How many ...

Chemistry
I need help setting up this problem. How many milliliters of 0.203 M KMnO4 are needed to react with 3.64 g of iron(II) sulfate, FeSO4? The reaction is as follows. 10 FeSO4(aq) + 2 KMnO4(aq) + 8 H2SO4(aq) → 5 Fe2(SO4)3(aq) + 2 MnSO4(aq) + K2SO4(aq) + 8 H2O(l) Thanks

Chemistry
2C2H6+7O2=4CO2+6H2O how many moles of H2O are produced when a mixture of 0.427 moles of O2 and 0.150 moles of C2H6 is burned, iv already found moles of H2O for them separately.

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...

CHEM
thank you VERY much for your replies, DrBob. Another question, however: How many moles of ions -both cations and anions- are present in solution when 0.75 mol of potassium chloride is dissolved in 0.25L of distilled water? How do I work this answer to be: 1.5mol? KCl(s) + H2O...

chemistry
Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost? (molar mass of CuSO4.5H2O is 250.5 g/mol)

chemistry
Calculate the pH from the addition of 10 mL of a 0.10 M NaOH solution to 90 mL of 0.10 M HCl. okay so i understand how to do most of it but i get messed up at one part.. so i made my equation: NaOH + HCl -> H2O + NaCl (strong base, strong acid= complete dissociation) so net...

Chemistry
How would I find the limiting reagent in the chemical equation...CuSO4*5H2O+2K2C2O4*H2O-->K2[Cu(C2O4)2]*2H2O+K2SO4+5H2O I got that K2C2O4 was the limiting reagent but I don't know if that is correct.

chemistry
How many moles of carbon monoxide gas are produced from the reaction of 5.00 moles of SnO2(s) with 9.00 moles of carbon according to the equation below? SnO2(s) + 2C(s) → Sn(s) + 2CO(g) Question 28 options: 4.50 mol 9.00 mol 18.0 mol 5.00 mol 7.50 mol

chemistry
How many moles of carbon monoxide gas are produced from the reaction of 5.00 moles of SnO2(s) with 9.00 moles of carbon according to the equation below? SnO2(s) + 2C(s) → Sn(s) + 2CO(g) Question 28 options: 4.50 mol 9.00 mol 18.0 mol 5.00 mol 7.50 mol

Science
How many moles of H2(g) will be formed in the reaction between 0.99 mol CaH2}(s) and 1.32 mol H2O(l)?

Chemistry
The hydroxyl radical (OH) is an important oxidizing agent in the atmosphere. At 298 K the rate constant for the reaction of OH with benzene is 1.24 10-12 cm3 molecule -1 s -1. Calculate the value of the rate constant in L mol -1 s -1. This is what I tried: 1.24*10^-12 cm3/ ...

chemistry
From the following combustion: 1-butanol + oxygen+ carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? I wrote out the equation and got C4H10) + 02= CO2 + H2O. i balanced the equation and got ...

chemistry
If my original sample contained 7.1 grams of potassium chlorate. How many moles of oxygen gas would I expect to have evolved? Hint: Convert grams to moles of potassium chlorate, then use the mole ratio in the balanced equation. Balance this equation KClO3 → KCl + O2(g) I...

chemistry
The pH of a solution prepared by mixing 45 mL of 0.183 M KOH and 65 mL of 0.145 M HCl is i solved it but my answer is wrong. the right one is 1.97. am i missing a step? moles of HCl left over = (moles of HCl) – ( moles of KOH) moles of HCl left over = (0.009425 mol) – ( 0....

Chemistry
How many moles of sodium chloride must be added to an aqueous solution that contains 2.0 moles of silver nitrate in order to precipitate 0.50 moles of silver chloride? A) 0.25 mol B) 0.50 mol C) 1.0 mol D) 2.0 mol E) 1.5 mol The answer is B. I have no idea what to do. I was ...

How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)? Please help. I've tried going (g of molecule/mol)x(1 mol of molecule/ 55.80g)but I'm not really sure what to do with this.

chemistry
For the combustion of ethane, beginning with 2.6 mol of CH3CH3, 2CH3CH3(g) + 7O2(g) → 4CO2(g) + 6H2O(g) a. how many moles of O2 are required to completely consume the CH3CH3? 9.1 moles b. how many moles of CO2 are obtained when the CH3CH3 is completely combusted? 5.2 ...

Chemistry
In the Formula... Na+ + NO2- + HSO3NH2 -> HSO4- + H2O + N2 + Na+ which I know has a 1:1 ratio, How do I figure out the Moles of N2 gas expected. Molar volume = 24.627 L/mol Moles of N2 produced = .0067 mol Volume of N2 gas of STP = .165 L Original used .5062g of NaNO2 to ...

chemistry
6. Determine Keq for the reaction: 2 SO2 (g) + O2(g) 2 SO3(g), given that 1.00 x 10-2 moles of SO2 and 2.00 x 10-2 moles of O2 were placed in a 2.00L reaction chamber. The chamber contained 7.5 x 10-3 moles of SO3 when equilibrium was established at 727oC. (PV = nRT, R = 0....

AP Chemistry
Calculate the moles of CO2 formed when 4.2 mol of C3H8 react with 20.6 mol O2. Answer in units of mol. So, the balanced equation is C3H8 + 5 O2 ==> 3 CO2 + 4 H2O . I thought the answer would be 12.36 mol, but when I type it in it's wrong. Please help!

CHEMISTRY
Consider a 58.4 g sample of H2O(g) at 125°C. What phase or phases are present when -162 kJ of energy is removed from this sample? Specific heat capacities: ice, 2.1 J g-1 °C-1; liquid, 4.2 J g-1 °C-1; steam, 2.0 J g-1 °C-1, ΔHvap = 40.7 kJ/mol, ΔHfus = 6.02 kJ/...

Chemistry
Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3 NO2 (g)+ H2O (l) --> 2HNO3 (l) + NO (g) Suppose that 5 mol NO2 and 1 mol H2O combine and react completely. How many moles of the reactant in excess are present after ...

chemical formula
Do i need a chemical formula to calculate the mols of FeSO4*7H20 when given the mols of Fe(II)? If so i only know that Fe(III) + H2SO4 + H3PO4 are the reactants, and FeSO4*H2O is the product. Help?

Chemistry
Consider the following balanced equation: 2N2H4(g)+N2O4(g)→3N2(g)+4H2O(g) Complete the following table showing the appropriate number of moles of reactants and products. If the number of moles of a reactant is provided, fill in the required amount of the other reactant, ...

Chemistry
1. If you had 1.73 moles of hydrogen (H2) and 0.89 moles of oxygen (O2), which would be the limiting reactant? How many moles of water can you produce from your supply of hydrogen and oxygen? My answers: H2 is the limiting reactant because it produces the least amount of ...

chemistry
How many grams of CuSO4 . 5H2O are needed to prepare 100ml of a 0.10M solution? Remember to change the given volume to liters and take the moles and convert them to grams via the molar mass to get grams of CuSO4 . 5H2O

Chemistry
What massof iron is contained in 86.6 grams if FeSO4?

CHEMISTRY
If 6.50 g of the unknown compound contained 0.217 mol of C and 0.433 of H, how many moles of oxygen,O, were in the sample?

equilbrium II
when CO2 (.15mol) and H2 (.302g) in a 500L vessel at 576'C are allowed to come to equilibrium the mixture contains .000183 mol/L of H20. what is the equilibrium concentration of CO? CO2 + H2 --> <-- CO +H2O The equilibrium concentration of H2O = the equilibrium ...

AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

AP Chemistry
For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 9 mol of C6H6 and 2.81 mol of O2. Answer in units of mol

Chemistry
A 1.547-g sample of blue copper(II) sulfate pentahydrate, CuSO4*5H2O, is heated. The white crystals of CuSO4 that are left behind have a mass of 0.989 g. How many moles of H2O were in the original sample?

Chemistry help
Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to make 866 milliliters of ...

Chemistry
Are these correct? 1. What is the formula mass for Mg(ClO3)2? mg=24.31 cl=35.45 x 2 = 70.9 o=16 x 6 = 96 24.31+70.9+96= Answer:191.2 amu 2.How many molecules of CO2 are in 4.5 moles of CO2? 4.5 x 6.022 x10^23=Answer 2.7x10^24 3.How many grams are in 9.21 moles of H2CO3? h=1....

Chemistry II
I will be happy to critique your thinking on this. First, calculate the moles of H2 used. 2.0e8 L H2/22.4 L H2 = 8.9e6 mol H2 For every 2 mol H2 used -572 kJ of energy is produced -572 kJ/2 mol H2 = -2.86e2 kJ/mol I have a balanced equation with this problem. It is: 2 H2 + O2...

Chemistry 11
So I did a lab determining the chemical formula of a hydrate. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g Mass of test tube + hydrated copper (2) sulphate: 24.1...

chemistry
Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container? you may assume the ...

chemistry
Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container? you may assume the ...

Chemistry (Equilibrium)
Consider the following equilibrium system at 900°C: H20(g) + CO(g) <==> H2(g) + CO2(g) Initially 5.0 moles of H2O and 4.0 moles of CO were reacted. At equilibrium, it is found that 2.0 moles of H2 are present. How many moles of H2O remain in the mixture? Would be ...

Chemistry (stoichiometry
(This homework question has been removed due to a copyright claim submitted by K12, Inc.) _----------_ [" okay this is what i got and im not sure if i did it right nor do i know if i answered everything the questions wanted so could you help me out please"] _----------_ ANSWER...

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