August 26, 2016

Search: Na2CO2(s)+HCl(aq)NaCl+H2O(L)+CO2(g)

Number of results: 10,631

Calculate ΔG∘ at 298 K for the following reactions. A) Ca(s)+CO2(g)+12O2(g)→CaCO3(s) B) 2KClO3(s)→2KCl(s)+3O2(g) C) CO(g)+H2O(g)→H2(g)+CO2(g)
May 12, 2014 by Tl

Calculate ΔG∘ at 298 K for the following reactions. A) Ca(s)+CO2(g)+12O2(g)→CaCO3(s) B) 2KClO3(s)→2KCl(s)+3O2(g) C) CO(g)+H2O(g)→H2(g)+CO2(g)
May 14, 2014 by Jeff

Calculate ΔG∘ at 298 K for the following reactions. Ca(s)+CO2(g)+12O2(g)→CaCO3(s) 2KClO3(s)→2KCl(s)+3O2(g) CO(g)+H2O(g)→H2(g)+CO2(g)
May 18, 2014 by John

How many grams of CaO (56.08) are required for complete reaction with HCl (36.46) in 275 mL of a 5.90 M HCl solution? CaO + 2HCl --> CaCl2 + H2O.
February 22, 2012 by Anonymous

How many mL of 8.0 M HCl must you dilute with an appropriate volume of H2O to prepare a total volume of 260.0 mL of 1.5 M HCl?
February 27, 2011 by Herman

2 ml of 1M HCl 0 ml of H2O 3ml of .3M Na2S2O3 How do I find the initial and final concentrations of both HCl and Na2S2O3?
January 7, 2013 by Nicole

AP chemistry
When a mixture of acetylene gas (C2H2) and oxygen is ignited and combusted, the reaction produces CO2 and H2O. What mass of acetylene is required to produce 150g of H2O?
October 31, 2010 by deb

Given the following reaction: HCl(g) + SrO(s) SrCl2(s) + H2O Calculate the mass of HCl in grams that would react with 11.44 kg SrO.
November 25, 2010 by andrea

analytical chemistry
a 0.4617g sample containing sodium bicarbonate was dissolved and titrated with standard 0.106M of hydrochloric acid solution , requiring 40.72ml. the reaction is: HCO3- + H+ -> H2O + CO2 Calculate the percent sodium bicarbonate in the sample. (Given molecular weight of ...
June 16, 2015 by zzz

Given the following reaction: HCl(g) + SrO(s) → SrCl2(s) + H2O Calculate the mass of HCl in grams that would react with 7.70 kg SrO
November 14, 2011 by riali

When O2 reacts with C2H6, according to the equation: 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O, how much CO2 is produced from 60.0 g of C2H6?
December 7, 2011 by Anonymous

Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is released when 12.5g of ethanol burns? C2H5OH(l) + 3 O2(g) --> 2 CO2(g) + 3H2O(l) Delta H = -1368kJ How do I solve this problem?
May 19, 2010 by Kieth

Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?)Grams of NaCl Moles of NaCl Number ...
September 14, 2013 by queen

IM SO CONFUSED PLEASE HELP! H2 +CO2-->H2O + CO When H2 is mixed with CO2 at 2,000K, equilibrium is achieved according to the equation above. In one experiment, the following equilibrium concentrations were measured. [H2]= 0.20mol/L [CO2]= 0.30mol/L [H2O]=[CO]= 0.55mol/L a/ ...
April 3, 2007 by linds

Please help with Physical Science 2!! Confused!
Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?) Grams NaCl Moles NaCl # Molecules ...
February 5, 2013 by Ella

Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 4 KHCO3 + 3 O2 How many moles of H2O are needed to react with 12.15 moles of CO2? moles A chemical reaction occurs between solutions of LiCl and silver nitrate. This reaction produces a precipitate that is recovered, dried ...
October 22, 2010 by Erika

Physicain elects to re-hydrate the patient br intravenous(IV) administration of 2.0 L of 0.45% (w/v) of NaCl. 0.45%9w/v) = 0.45g/100ml A.How many grams of NaCl were given? B.How many moles of Nacl were given? C.What is the molarity of the NaCl solution?
May 13, 2013 by Monica

organic chem
(b) One of your illustrious colleagues continues his/her education and finally obtains employment with a renowned pharmaceutical company as an organic chemist. He or she is asked to synthesize pantothenic acid because the company wants to use it to prepare a synthetic form of ...
April 26, 2011 by adam

answer to water conductance lab on conductivity of solutionof 500ppm of nacl,1,000 ppm of nacl,5,000ppm og nacl and 10,000ppm of nacl
July 28, 2011 by dkh

green valley college
the principal constituents of natural gas is methane which burns in air according to the reaction CH4+O2=CO2+H2O How many grams of CO2 is produced when you have 50g of both CH4 and O2 what is the limiting reactant?
September 23, 2015 by rosvel

The mole fraction of CO2 in a certain solution with H2O as the solvent is 3.6 10−4. The molality of CO2 in this solution is about: A. 0.00036 m B. 0.0065 m C. 0.020 m D. 2.0 10−5 m E. 6.5 m
March 31, 2010 by nnn

a 5 g mixture of natural gas containing ch4 and c2h4 was burnt in excess of oxygen yielding 14.5 g of co2 and h2o.What is the weight of ch4 and co2 in the mixture
July 25, 2013 by sim

Methane gas is burned releasing Carbon Dioxide into the atmosphere. How much CO2 (g) is released if 78.5 Liters of Methane is burned? CH4 + O2 --> CO2 + H2O
May 1, 2013 by kate

the equilibrium constant Kc for the reaction H2 + Co2 to H2O + CO is 4.2 t 1650C initially .80 mol of H2 and 0.8 mol Co2 are injected into a 5.0 flask. Calculate the concentration of each species at equilibrium
May 6, 2015 by Tintin

NaC2H3O2 (aq) + HCl (aq) = NaCl (aq) + ?
October 13, 2008 by Krysti

which of the following has both dispersion forces and dipole-dipole forces? Br2 HCl H2 CO2 BCl3 I reckon its HCl can anyone confirm please
May 11, 2010 by Anonymous

college chem 2
Calculate the deltaS univ for the dissolving of NaCl at room temp. S' NaCl(s)=72.11 J/k*mol; S' NaCl(aq)=115.5 J/k*mol;deltaH' NaCl(s)=-411.12 kJ/mol; deltaH' NaCl(aq)=-407.27 kJ/mol.
March 24, 2014 by shel

What is the boiling point of each solution? a).50mol glucose in 1000g H2O b)1.50mol NaCl in 1000g H2O
April 29, 2010 by Kim

14. What is the number of moles in 42 g of NaCl? A. 1.8 mol NaCl B. 0.72 mol NaCl C. 0.61 mol NaCl D. 1.2 mol NaCl I'm sorry, I have no idea what I'm doing here.
August 15, 2013 by Jenny

2NaHCO3(s)+ heat -->Na2CO3(s)+ H2O(g)+CO2(g) is this right ? Determine how many moles of CO2(g) is produced when 7mols of NaHCO3 are consumed. question i asked earlier, i got 3.5 moles am i right ?
February 24, 2011 by Hannah

Chemistry Help Please!
An industrial chemist puts 1.00 mol each of H2(g) and CO2(g) in a 1.00-L container at 800oC. When equilibrium is established, 0.49 mol of CO(g) is in the container. Find Kc at 800 C for the following reaction: H2(g) + CO2(g) ⇌ H2O(g) + CO(g).
January 21, 2014 by Josh

Please double check...GK or Dr.Bobb22
Hi, i actually posted this up before..please double check the answers if i got them right have to hand in on Wednesday: The Chemicals are: Baking Soda- NaHC03 Calcium Chloride- CaCl2 Bromothymol Blue - (acid base indicator) _______________________________________ What is: (a) ...
January 19, 2009 by Saira

Acid is required for calcium carbonate to fully dissociate. Determine the volume of 6M hydrochloric acid that must be added to dissolve the mass of CaCO3 you calculated in the question above taking into consideration the equations below. CaCO3->Ca+CO2 2H+CO2->H2CO3->...
October 14, 2015 by Jennifer

Chemistry HELP
In a constant-pressure calorimeter, 50.0 mL of 0.300 M Ba(OH)2 was added to 50.0 mL of 0.600 M HCl. The reaction caused the temperature of the solution to rise from 21.73 C to 25.82 C. If the solution has the same density and specific heat as water, what is ΔH for this ...
October 18, 2014 by wisa bedalie

Write an equation for the combustion of one mole of benzene, C6H6(l), and use data from Appendix D to determine delta G degrees (which is 124.5) at 298K if the products of the combustion are (a) CO2(g) and H2O(l), and (b)CO2(g) and H2O(g). Describe how you might determine the ...
July 14, 2010 by Ashely

Consider the following reaction: CO(g)+H2O(g)⇌CO2(g)+H2(g) Kp=0.0611 at 2000 K A reaction mixture initially contains a CO partial pressure of 1348torr and a H2O partial pressure of 1780torr at 2000 K. Calculate the equilibrium partial pressure of CO2. Calculate the ...
February 25, 2015 by Ryan

Chem 204 Lab
Dr. S. N. Too ran the above reaction using 10.00 g of 1,5-pentanediol and 7.00 g of HCl. He obtained 9.23 g of 1,5-dichloropentane. What was his per cent yield? HO(CH2)5OH + 2 HCl --------> Cl(CH2)5Cl + 2 H2O
September 12, 2012 by Justin

If 2.0 mol of propane are burned (reacted with oxygen), how many moles of carbon dioxide will be produced? C3H8 (g) + 5 O2(g) → 3 CO2 (g) + 4 H2O (g) I just want to make sure the answer is 6 mol of CO2 will be produced.
September 18, 2015 by Ashley

C5H12 + O2--- CO2 + H2O give that the equation if I use 85 grams of O2 and excess C5H12 how many grams of CO2 are produced
May 19, 2016 by Jackie

Combustion analysis of a 1.00g sample of ascorbic acid yields 1.500g of CO2 and 0.409g of H2O. What is the empirical formula of ascorbic acid? (a. CHO B.CH2O C. C2H4O2 D. C3H4O3 E.Cannot be determined with the information given. ) Convert the 1.5 g of CO2 and 0.409 g of H20 by...
July 24, 2005 by Jon

You have a sample of NaCl that contains 100 mg/ml NaCl. You are trying to perform an reaction that requires 10ml of 20 mg/ml. Enter in the correct amount (in ml) of Stock NaCl solution you need to use to make 10ml of 20 mg/ml NaCl
March 1, 2011 by mina

Chemistry-Please Help!
I have these 5 chemical equations and I keep getting the same 1:1 ratio on all of them. I must be doing something wrong! KCL + NaNO3 = KNO3 + NaCl HNO3 + KOH = H2O + KNO3 H2O + SO3 = H2SO4 4Na + O2 = 2Na2O 2NO2 = 2NO + O2
November 11, 2010 by Ann

10). What is the molarity of an HCl solution if 42.5 mL of a 0.110 M KOH solution is needed to titrate a 25.0-mL sample of the acid? A) 0.187 M HCl B) 0.587 M HCl C) 0.0647 M HCl D) 5.35 M HCl E) 1.70 M HCl
November 28, 2011 by denis

I need help with a,b,and c. I tried to balance it but im having a little trouble Ethane gas, C2H6, burns in air and produces carbon dioxide and water vapor. a)write a balanced equation for this reaction. I know this isnt balanced but is this what im working with? C2H6 + O ---&...
March 25, 2007 by beth25

Rolaids is an over the counter remedy for upset stomachs that functions by reacting with stomach acid. The active ingredients are calcium carbonate (550 mg) and magnesium hydroxide (110 mg). The inactive ingredients are dextrose, flavoring, magnesium stearate, polyethylene ...
March 13, 2015 by Jen24

A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D: 6.97% (m/v) glucose Solution E: 5.0% (m/v) glucose ...
September 29, 2011 by sol

Organic Chemistry
Hi, I did an extraction experiment. I've got my basic layer, and getting my acidic salt in return. To do this, I am instructed to first "add a small amount of NaCl to help with the product precipitation". Then, again I am instructed to add HCl to "acidify" the solution. With ...
November 3, 2014 by Juan

Having trouble balancing redox equations. Teacher says I should use the method of half reactions and I'm not sure how. Any explanation or formula would be nice. C6H12O2 --> C2H4O2 SO2+H2O+O2 --> H2SO4 C2H6O+O2 --> CO2 + H2O
April 1, 2014 by Mike

hey guys need some help here!!! if 0.250mol of CO and 0.250mol of H2O were combined in a 125mL flask and the reaction allowed to reach equilibrium . Kc= 1.56. write the equ expression and calculate each substance Co(g) +H2O(g) .... Co2(g) +H2(g)
December 11, 2012 by Anonymous

For the reaction: C4H10 + O2 CO2 + H2O ( is this balanced?) , how many moles of CO2 is formed when 5.00 moles C4H10 reacts with O2? A. 5.00 B. 1.25 C. 20.0
March 5, 2011 by Ivy

Chemistry (Help)
Calculate the DHrxn of C57H110O6 (s) + O2(g) --> CO2(g) + H2O(l) with DHf. C57H110O6(s) -390.70 O2(g) 0 CO2(g) -393.5 H2O(l) -285.840 I balanced the equation: 2C57H110O6 (s) + 163O2(g) --> 114CO2(g) + 110H2O(l) and my work: DHrxn = [224mol(-393.5+(-285.840))] - [165mol(-...
November 17, 2015 by Anonymous

Are there formulas to solve the following problem? Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl ...
February 6, 2015 by alma

Lithium hydroxide is used in the space program to remove carbon dioxide (from respiration) in spacecraft. Specifically, lithium hydroxide, LiOH, reacts with carbon dioxide, CO2, ro form lithium carbonate, Li2CO3, and water. 2LiOH+CO2->Li2CO3+H2O, What mass of CO2 can be ...
March 30, 2012 by Trinny

If 0.0490 mol of solid CaCO3 and 380 mL of 0.135 M aqueous H2SO4 are reacted, what volume (L) of gaseous CO2 measured at 1.1 atm pressure and 301 K is produced. H2SO4(aq) + CaCO3(s) → CO2(g) + CaSO4(s) + H2O(l)
November 21, 2010 by Confused

human blood contains dissolved carbonc acid in equilibrium with carbon dioxide and water according to the reaction: h2CO3(aq)<-->CO2(aq)+H2O(l) explain why decreasing the concentration of Co2 will ultimately decrease the concentration of H2CO3.
March 17, 2011 by Alexis

I have to find the weight percent of Na2Co3 for my lab report that's due tomorrow but I have no idea how to do it. In the lab I had to wdight 0.4 g of the unknown soda ash sample into an erlenmyer flask and add about 50 mL of deionized water. Then I had to add 2 drops of ...
September 20, 2006 by bria

Using the equations and enthalpy values provided, which mathematical expression can be used to determine the unknown enthalpy change of the decomposition of propane? 3 C + 3 O2 3 CO2 H =-1182 kJ 4 H2 + 2 O2 4 H2O H = -1144 kJ C3H8 + 5 O2 3 CO2 + 4 H2O H = -2222 kJ C3H8 3 C + 4...
June 17, 2011 by bryan

The reaction CO(g) + H2O(g)--> CO2(g) + H2(g) has Kc = 102 at 500 K. If a reaction mixture initially contains 0.154 M CO and 0.154 M H2O, what will be the equilibrium concentration of H2?
May 2, 2011 by Ryan

NaOH(aq) + HCl(aq)----> H20 + Nacl(aq).. solve for the amoont of energy aborbed by the solution. (50ml of 1.0M HCl is 23deg; 50ml of 1.0M NaOH is at 25deg; mixed solutuion= 31deg pls tell me the steps to take inorder to solve the question. Thanks in advance.
May 4, 2010 by Ade

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
September 4, 2012 by Rafael

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
September 4, 2012 by Rafael

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
September 19, 2012 by Matt

Chemistry 151
5) How many mL of 1M HCl is used to make the following dilutions? a) 100mL of 0.1M HCl = b) 250mL of 0.5M HCl= c) 10ml of 0.01M HCl= 36.64 is the molar mass of hcl do I divide that into ml?
March 16, 2014 by Selina

CO2 and NH3 combines together to form CH4N2O and H20. What is the mass of NH3 that would be needed to make 2 moles of CH4N2O. Balanced equation is CO2+2NH3-->CH4N2O+H2O
October 26, 2012 by chemdummy08

∆H of ★Ca(HCO3)2→CaCO3 + CO2 + H2O and ★Ca(HSO4)2→ CaSO4+ SO2 + H2O???
October 17, 2015 by Mohammad Seyam

Consider the reaction between 52.0 mL of liquid ethanol (C2H5OH; density = 0.789 g/mL) and 25.4 L of O2 at 27.0C and a pressure of 1.65 atm. The products of the reaction are CO2(g) and H2O(g). Calculate the number of moles of H2O formed if the reaction goes to completion.
November 9, 2014 by Tasha

Environmental Science
Answer the questions about the following processes in the space provided below. You only need to indicate a process by its number. For each question list as many processes as apply. Process 1: 6 CO2 + 6 H2O → C6H12O6 + 6 O2 Process 2: C6H12O6 + 6 O2 → H2O + 6 CO2...
August 18, 2014 by Sydney

what is the molality of 18 g NaCl in 200 g of H2O?
November 25, 2014 by Brittany

Calculate the molarity of each. a. 1.50 mole of NaCl in 8.00 L of solution 0.188 M NaCl b. 270 mg of NaCl in 3.00 mL of solution 90 M NaCl
February 22, 2012 by krystal

Ca(OH)2 reacts with CO2 to form CaCO3 and H2O. A. How many grams of CaCO3 will be formed if 4 grams of Ca(OH)2 are used? B. If you have 2.5 grams of Ca(OH)2 and 0.5 of CO2, which is the limiting reactant?
October 25, 2012 by Charles

mass-mass conversions and mass-mole conversions: what is the difference and how do you do each? mass is converted to mols by mols = grams/molar mass. mass of one chemical is converted to mass of another chemical by using the coefficients in the balanced chemical equation. For ...
January 18, 2007 by Briana

Simple Chem Question: Please Answer
I can't remember if the reactant always on the left side and the product on the right side? 1 Ex: CaO + H2O arrow Ca(OH)2 2 Ex: 2NaHCO3 arrow Na2CO3 + H2O + CO2
May 24, 2010 by Anonymous

given the following electronegativities Na=0.9, H=2.1, Cl=3.0 which of the following statements is true? H2,Cl2, and HCl are polar covalent molecules NaCl is a polar covalent compound and HCl is an ionic compound HCl is a nonpolar covalent compound and Cl2 is a polar covalent ...
February 23, 2014 by Dee Dee

A1g sample of enriched water, a mixture of H2O AND D2O, reacted completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solution. A 25.00 mL, sample of the 1 L solution was reacted with excess AgNO3 and 0.3800g of ...
September 21, 2013 by Anirudh

here I have a (hopefully) balanced equation. Would you mind pointing out my errors, and explaining the right way to fix them? Thanks in advance. C5H12 + O2 yields CO2 + H2O I balanced this as: 2C5H12 +4O2 yields 5 CO2+6H2O.
April 1, 2009 by Krissa

Nitric oxide (NO) can be removed from gas-fired power-plant emissions by reaction with methane as follows: CH4(g) + 4NO(g) --> 2N2(g) + CO2(g) + 2H2O(g) Complete the equation relating the rates for each of the following: a) the rate of appearance of N2 to the rate of ...
October 15, 2012 by Brun

what is the highest boiling point to the least HF,HCL, NACL, F2
April 23, 2011 by Danna

why nh4cl is not used in place of nacl to prepare hcl?
March 16, 2013 by Ashritha

When 3.05 moles of CH4 are mixed with 5.03 moles of O2 the limiting reactant is __________. CH4 + 2O2 CO2 + 2H2O A) CH4 B) O2 C) CO2 D) H2O
July 13, 2013 by Janaiby

These are the answers I got for the following problems - am I right? 1) How many grams of water, H2O, and propene, C3H6, can be formed from the reaction of 6.0 g of 2-propanol, C3H8O? C3H8O ----> C3H6 + H2O 1.8g H2O and 4.2g C3H6 2) How many moles of water, H2O, can be ...
November 29, 2009 by Mary

a gaseous hydrocarbon reacts completely with oxygen gas to form carbon dioxide and water vapor. given the following data, determine (delta)HoF for hydrocarbon: (delta)Horxn=-2044.5kj/mol hydrocarbon (delta)HoF CO2= -393.5kj/mol (delta)HoF H2O = -242kj/mol denstity of CO2 and ...
April 20, 2008 by chemistry

If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols NaCl on 58.5 gg NaCl. Mols NaCl/Liter of ...
June 13, 2006 by brett

Lithium hydroxide is used in the space program to remove carbon dioxide (frin respiration) in spacecraft. Specifically, lithium hydroxide, LiOH reacts with carbon dioxide, CO2 to form lithium carbonate Li2Co3, and water. 2 liOH + Co2 Li2Co3+ H2O. What mass of CO2 can be ...
March 28, 2012 by Ambra

AP chemistry
8.3 grams of NaCl and 3 grams of KBr were dissolved in 47 mL of water. What is the mole fraction of KBr in the solution? I know that the mole fraction of the KBr and Nacl (without using the mL H2O is .2, but, i am confused on where i use that mL in the problem.) Please help!
October 3, 2010 by Chem is try

Lithium hydroxide is used in the space program to remove carbon dioxide (from respiration) in spacecraft. Specifically, lithium hydroxide, LiOH, reacts with carbon dioxide, CO2, to form lithium carbonate, Li2CO3, and water. 2 LiOH + CO2 Li2CO3 + H2O What mass of CO2 can be ...
July 24, 2008 by Lynn

human biology
I hope someone can help me answer this queestion: which of the following does NOT involve the sharing of electrons? H20, HCl, NaCl, H2 or C6, H12, O6 and why? The last three compounds you listed do not exist. Among the others, NaCl does not share electrons; the Cl completely ...
March 18, 2007 by sophia

For the reaction: 2HCl + Na2CO3→ 2NaCl + H2O + CO2 how much CO2 is produced at STP if 18.5 L of 1.15 M Na2CO3is used? The molar mass of Na2CO3is 106.01 g/mol. I know I have to use stoichiometry and possibly PV=nRT but I don't know what to use first. Do I start with 18.5L?
March 17, 2013 by Kelly

solubility of NaCl in a H2O at 30 degrees Celcuis
June 20, 2010 by Anonymous

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O?
February 10, 2011 by Anonymous

AP Chemistry
For the reaction ?CH4+ ?O2 ==> ?CO2+ ?H2O, what is the maximum amount of CO2 (44.0095 g/mol) which could be formed from 3.67 g of CH4 (16.0425 g/mol) and 4.23 g of O2 (31.9988 g/mol)? Answer in units of g I know that you have to balance the equation, so the coefficients 1, ...
December 1, 2014 by Savanna

liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 --> 7CO2 + 8H2O the heat combustion for one mole of C7H16 is -4.85*10^-3 CO2 heat of comb. = -393.5 H2O h of c= -285.8 a) calc. the vale of heat of cumbustion for C7H16 in kJ/mol a .0108 mol ...
March 10, 2010 by hilde

NaOH + HCl ------> NaCl + HOH I need to figure out the quantity of heat in this reaction. The volume of the solution is 150 mL (NaCl + HOH). The inital temperature is 26 degrees celcius and the final temperature is 23 degrees celcius. That's all I know. How would I go about...
April 7, 2009 by Lena

1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?
August 20, 2011 by andi

If the same amount of heat is added to equal masses of each of the following substances, which substance will undergo the largest temperature change? Substance Specific heat(j/gC) Al (s) 0.90 Cl2(g) 0.48 C6H6(l) 1.7 H2O (l) 4.2 NaCl(s) 0.87 temp. change = 1/S.H. (specific heat...
January 22, 2016 by Jessie

AP Chemistry
Summary of problem Photosynthesis uses CO2 & H20 to make C6H12O2. If a plant has 99 grams of CO2 & 68 grams of H2O for photosynthesis, what's the balanced equation, the mass of glucose made, & the mass of excess?
October 7, 2010 by Alex

balance the following equations and write an equation for the mole to mole relationship and the mass relationship a. Na + H2O > NaOH + H2 b. HCl + KOH > KCl + H2O
April 20, 2008 by shaggy

Which solution has the lower freezing point? (a) 90.0 g CH3OH in 100. g H2O 180.0 g CH3CH2OH in 200. g H2O (b) 70.0 g H2O in 1.00 kg CH3OH 70.0 g CH3CH2OH in 1.00 kg CH3OH delta T = Kf m convert 90 g CH3OH to mols mols/kg solvent = m (kg solvent = 0.1) do the same for 180 g ...
January 21, 2007 by Stuck

which of the following is a nonelectrolyte? a)c3h8 b)h2so c)hcl d)hno 3 e)nacl
October 5, 2007 by jessica

If i used NaCl to try to precipitate Ag+ from a solution, will it be as effective as HCl?
November 16, 2008 by Chemistry

what causes the different physical properties between HCl and NaCl
September 28, 2009 by Adam

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