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July 29, 2014

Homework Help: Science: Chemistry

Recent Homework Questions About Chemistry

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Chemistry
For the following battery: Cd(s) | CdCl2(aq) || Cl–(aq) | Cl2(l) | C(s) (a) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) C(s) electrode:? (c) Calculate the mass of Cl2 consumed if the battery ...
Monday, May 6, 2013 at 5:48pm

Chemistry
Help please!!! Complete the two reduction half reactions for the cell shown at the right, and show the line notation for the cell by dragging labels to the correct position. (The electrode on the left is the anode, and the one on the right is the cathode.) Ag and Pb Anode half...
Monday, May 6, 2013 at 5:45pm

Chemistry
A salt solution is evaporated to dryness. If 66.5 g of the solution leaves 1,492 mg of dry salt, what is the percent concentration (w/w) of the salt in the solution?
Monday, May 6, 2013 at 3:57pm

Chemistry
A certain gas has a solubility of .50 g/L under a pressure of 1500 torr. What would its solubility be a 2250 torr?
Monday, May 6, 2013 at 3:55pm

Chemistry
Calculate the volume of 2.45 M NaI that would be needed to precipitate all of the Hg+2 ion from 185 mL of a 2.44 M Hg(NO3)2. AND Calculate the molarity of an acetic acid solution if 47.81 mL of the solution is needed to neutralize 147 mL of 1.32 M sodium hydroxide.
Monday, May 6, 2013 at 3:52pm

Chemistry HELP!
In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the concentration of ...
Monday, May 6, 2013 at 11:25am

chemistry
We have a tank that contains O2 at 146 mmHg, N2 at 146 mmHg, and CO2 at 138 mmHg. We then add 135 mmHg of Ar. What is the pressure in the tank?
Monday, May 6, 2013 at 11:13am

chemistry
The pKb of ammonia solution, NH3(aq) is 4.76. A buffer solution contains NH4Cl and NH3, has a pH of 9.45, and a total ammonia concentration (all forms) of 0.400 M. What is the concentration of NH4+? (Hint: [NH4+] + [NH3] = 0.400 M)
Monday, May 6, 2013 at 10:37am

chemistry
What is the difference between the two strong acids, nitric and hydrochloric acid, when they behave as the oxidised forms in a reduction half-equation?
Monday, May 6, 2013 at 8:24am

chemistry
determine the number of representative particles in each of the following and identify the representative particle: 11.5 mol Ag; 18.0 mol H20; 0.150 mol NaCL.
Monday, May 6, 2013 at 8:17am

chemistry
An ideal gas in a sealed container has an initial volume of 2.45 L. At constant pressure, it is cooled to 23.00 °C where its final volume is 1.75 L. What was the initial temperature?
Monday, May 6, 2013 at 1:52am

Chemistry HELP!
In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the concentration of the...
Monday, May 6, 2013 at 12:12am

Chemistry
Why is this reaction considered exothermic? "Concentrated sulfuric acid dissolves in water and the solution becomes warmer." This is a homework question and when I answered the problem, I thought it was endothermic because the solution is gaining heat, but when my ...
Sunday, May 5, 2013 at 11:57pm

Chemistry PLEASE HELP!
Check all of the following statements which are TRUE for a titration. Select one or more: a. A suitable primary standard must be available. b. The concentration of the solution in the buret (the titrant) must be known before the titration is begun. c. Titrations can only be ...
Sunday, May 5, 2013 at 11:43pm

Chemistry
Use Hess's Law to find the change in heat of 2C(graphite)+H2(g)-->C2H2(g)? Given: C(graphite) + O2(g) --> CO2(g) change of heat rxn = -393.5 kJ 2H2 (g) + O2(g) ---> 2H2O (l) change of heat rxn = -571.6 kJ 2C2H2 (g) +5O2(g) ----> 4CO2(g) +2H2O (l) change of heat...
Sunday, May 5, 2013 at 10:54pm

Chemistry
How do you find the equilibrium constant of: B + O2 <-> BO2 ??
Sunday, May 5, 2013 at 9:40pm

chemistry
Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca(OH)¿(aq) + HCl(aq) d CaCl¿(aq) + H¿O(l) CaO(s) + 2HCl(aq) d CaCl¿(aq) + H¿O(l),  DH = -186 kJ CaO(s) + H¿O(l) d Ca(OH)¿(...
Sunday, May 5, 2013 at 7:53pm

Chemistry
cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks
Sunday, May 5, 2013 at 7:46pm

Chemistry
cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
Sunday, May 5, 2013 at 6:24pm

Chemistry
cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks
Sunday, May 5, 2013 at 6:23pm

Chemistry
How do you find the equilibrium constant? ..steps?
Sunday, May 5, 2013 at 6:09pm

Chemistry
So we're doing oxidation-reduction reactions and batteries and voltages. We did a lab where we would take two metals, put it in a mixture (bleach/water/vinegar/salt) and used a voltmeter to see the DC voltage. Now we're supposed to 'calculate the potential ...
Sunday, May 5, 2013 at 5:26pm

Chemistry
cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
Sunday, May 5, 2013 at 5:12pm

Chemistry
cd2+ (aq) +ni(s)---> cd(s) + ni2+ (aq) what is the half reaction
Sunday, May 5, 2013 at 5:12pm

chemistry
Complete the two reduction half reactions for the cell shown at the right, and show the line notation for the cell by dragging labels to the correct position. (The electrode on the left is the anode, and the one on the right is the cathode.) They give you 2AgCl(s); Pb(s); AgCl...
Sunday, May 5, 2013 at 4:34pm

chemistry
We have a tank that contains O2 at 146 mmHg, N2 at 146 mmHg, and CO2 at 138 mmHg. We then add 135 mmHg of Ar. What is the pressure in the tank?
Sunday, May 5, 2013 at 4:31pm

Chemistry
Given that 1g of Phenacetin requires 82mL of hot water to dissolve, or 1310mL of cold water (TY= 3.92g): 1) How much water will you need to recrystallize the theoretical yield? 2) How much product will be lost because of recrystallization?
Sunday, May 5, 2013 at 3:33pm

Intro Chemistry
Given: 2CO(g) + O2(g) -> 2C02(g). When 10 mol of CO and 8.0 mol of O2 react in a closed 10L vessel. a)how many moles of CO, O2, and CO2 are present at the end of the reaction? b)What will be the total pressure in the flask at 0 degrees C?
Sunday, May 5, 2013 at 1:08pm

Intro Chemistry
Given: C2H2(g) +2HF(g) -> C2H4F2(g) Find: pressure in a 10.0L flask when the reaction is complete When 1.0 mol of C2H2 and 5.0 mol pf HF are reacted in a 10.0 L flask, what will be the pressure in the flask at 0 degrees C when the reaction is complete?
Sunday, May 5, 2013 at 12:57pm

chemistry
Calculate the partial pressure of helium in a 1.00 L flask that contains equal numbers of moles of He, Ne, and Ar at a total pressure of 8.35 atm.
Sunday, May 5, 2013 at 12:33pm

Chemistry 104 PLEASE HELP ME!!
Determine the weight of Na2C2O4 which is required to react completely with 20.0ml of 0.02M KMnO4.
Sunday, May 5, 2013 at 12:05pm

college Chemistry
What would you expect to be the chemical names of the main gases that were dissolved in the tap water?
Sunday, May 5, 2013 at 11:54am

CHEMISTRY
WHEN DOES A CHEMICAL BECOME A DRUG?
Sunday, May 5, 2013 at 11:54am

chemistry
a 35.0ml sample of 37% hcl solution has a density of 1.18g/ml. the sample is diluted to a volume of 0.125L. what is the molarity of the final solution ?
Sunday, May 5, 2013 at 11:54am

college Chemistry
Conductivity test, what controls the brightness of the light? (hint: think about your tapwater abd NaCl results and why they were different)
Sunday, May 5, 2013 at 11:37am

chemistry
WHEN DOES A CHEMICAL BECOME A DRUG?
Sunday, May 5, 2013 at 11:28am

chemistry
a 35.0ml sample of 37 hcl solution has a density of 1.18g/ml. the sample is diluted to a volume of 0.125L. what is the molarity of the final solution ?
Sunday, May 5, 2013 at 10:46am

College Chemistry
What must we know a given ionic salt to be able to predict whether is is a good or poor conductor, w/o testing its conductivity?
Sunday, May 5, 2013 at 10:32am

Chemistry
one morning you are given 3 test tubes of aqueous solutions of compound X: the "A" tube was set up as unsaturated, while "B" was set up as Saturated in a beaker, then poured of into the tube, and "C" was carefully set up as supersaturated. At ...
Sunday, May 5, 2013 at 10:28am

Chemistry
What must we know a given ionic salt to be able to predict whether is is a good or poor conductor, w/o testing its conductivity?
Sunday, May 5, 2013 at 10:15am

chemistry
The percent water in methyl alcohol can be determined by gas chromatography using a capillary column coated with a non-polar stationary phase and a thermal conductivity detector. A series of calibration standards yielded the following results: Water content (% w/w) Peak height...
Sunday, May 5, 2013 at 9:29am

chemistry
A manometer attached to a flask contains NH3 gas have no difference in mercury level initially as shown in diagram. After the sparking into the flask, it have difference of 19 cm in mercury level in two columns. Calculate % dissociation of ammonia. (1) 21% (2) 22% (3) 24% (4...
Sunday, May 5, 2013 at 6:00am

chemistry
When does a chemical become a drug?
Sunday, May 5, 2013 at 5:32am

chemistry
the fictitious compound pandemonium carbonate has a ksg=3.091*10^-9 M 3 in water at poor temperature .calculate the solubility of PnCo3 in an aqueous solution of 1.11 M pandemonium sulfate. express your answer in units of molarity.
Sunday, May 5, 2013 at 4:35am

chemistry
the fictitious compound pandemonium fluoride has a k value in water of 3.091*10^-9 M^3.calculate the solubility of PnF2 in water. Express your answer in units of molarity.
Sunday, May 5, 2013 at 4:24am

chemistry
the fictitious compound pandemonium fluoride has a k value in water of 3.091*10^-9 M^3.calculate the solubility of PnF2 in water. Express your answer in units of molarity.
Sunday, May 5, 2013 at 4:23am

Chemistry
10cm^3 of aa hydrocarbon was completely combusted in 200cm^3 of O2. It was found that there was 20cm^3 of O2 remaining and the volume of CO2 produced was 120cm^3. Determine the formula of the hydrocarbon.
Sunday, May 5, 2013 at 3:25am

Chemistry
10cm^3 of aa hydrocarbon was completely combusted in 200cm^3 of O2. It was found that there was 20cm^3 of O2 remaining and the volume of CO2 produced was 120cm^3. Determine the formula of the hydrocarbon.
Sunday, May 5, 2013 at 3:25am

Chemistry
The density of concentrated sulfuric acid is 1.84 g/mL. If this corresponds to 18 M, what is the molality of the solution? Molar mass= 98. 98 x 18 =1764g/L - 1.84 =1762.16/1000 = 1.76 kg 18/1.76=10.23 m But my only options are: a) 18 m b) 95.5 m c) 240 m d) 0.240 m?
Sunday, May 5, 2013 at 2:34am

Chemistry
When 100.0 g of an unknown nonelectrolyte is dissolved in 500.0 g of benzene, C6H6, the solution boils at 82.9°C. Calculate the molecular weight (molar mass) of the unknown material. Kb for benzene is 2.53°C/m and the boiling point of pure benzene is 80.1°C?
Sunday, May 5, 2013 at 2:04am

Chemistry
why is it important to know accurately the mass of water used in a calorimeter?
Sunday, May 5, 2013 at 1:00am

analytical chemistry
A solution containing both Fe 3+ and Al 3+ can be selectively analyzed for Fe 3+ by buffering to a pH of 2 and titrating with EDTA. Th e pH of the solution is then raised to 5 and an excess of EDTA added, resulting in the formation of the Al 3+ - EDTA complex. The excess EDTA ...
Saturday, May 4, 2013 at 9:36pm

chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.528g/L at 25 degree celsius and 721 mmHg ?
Saturday, May 4, 2013 at 7:39pm

chemistry
To identify a diatomic gas (), a researcher carried out the following experiment: She weighed an empty 2.4- bulb, then filled it with the gas at 1.70 and 28.0 and weighed it again. The difference in mass was 4.7 . Identify the gas.
Saturday, May 4, 2013 at 7:33pm

Chemistry
Assuming equal concentrations, rank these aqueous solutions by their freezing point: low to high NH4Cl, Sn(ClO3)4, Na2SO4, and AlBr3.
Saturday, May 4, 2013 at 6:52pm

chemistry
enzymes convert glucose M=180.2 to ethanol M=46.1 according to the equation C6H12O6=2C2H5OH + 2CO2 what is the maximum mass of ethanol that can be made from 15.5 kg of glucose?
Saturday, May 4, 2013 at 4:46pm

Chemistry
what is the final volume of 1% KOH soltion prepared from a 10ml of a 20% KOH solution?
Saturday, May 4, 2013 at 4:21pm

chemistry
Calculate the pH of the following solutions. (A) 0.95 NaOH (B) 9.9x10^-10 M NaOH (C) 6.7 M NaOH
Saturday, May 4, 2013 at 2:02pm

chemistry
find the molar solubility of zinc carbonate if its ksp=1.5x10^-10. (at 298K)
Saturday, May 4, 2013 at 11:43am

Chemistry
What is the mass of ethylene gycol dissolved in 5.00 kg of a 40.0% solution?
Saturday, May 4, 2013 at 11:41am

Science - Chemistry
I need help I've got 2 books and they both tell me different things. I need to know the 3 different ways of extracting salt, how it's done, the advantages and the disadvantages of each one?? Please Help!!!
Saturday, May 4, 2013 at 11:11am

chemistry
does kh2po4 react with sodium lauryl sulphate and can we use nah2po4 insted of kh2po4 in prepration of 0.2 m phosphate buffer ?
Saturday, May 4, 2013 at 7:45am

chemistry
Would you expect the solubility of PbCl2 in water to change dramatically if it were to be dissolved into a solution of 3.091×10−4 M KCl? Yes, the solubility of PbCl2 would decrease dramatically. Yes, the solubility of PbCl2 would increase dramatically. No, the ...
Saturday, May 4, 2013 at 6:25am

chemistry
Consider the gold-platinum system which has a value of delta w of -4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole. (b) Is the dissolution of 10% platinum into gold an endothermic or an ...
Saturday, May 4, 2013 at 6:24am

CHEMISTRY
1.AN ORBITAL can have at the most two electrons of opposite spine can be called ?
Saturday, May 4, 2013 at 3:58am

chemistry
what is a titration, what is the type of reaction to find the volume of hydrochloric acid needed to react with 25 of potassium hydroxide solution
Saturday, May 4, 2013 at 3:19am

Chemistry
What is the Ka of the amino acid serine if it is 34.5% dissociated at pH- 9.46?
Saturday, May 4, 2013 at 1:42am

analytical chemistry
A 10.00 mL aliquot of a solution of a weak acid , HA, whose pK a is 4.76 is titrated with OH - generated by electrolysis of water according to th e following scheme: 2 H 2 O + 2 e - ⇔ 2 OH - + H 2 (a) [5 points] If the end point in the titration is ob served ...
Saturday, May 4, 2013 at 1:08am

analytical chemistry
Shown below is a diagram of an electrochemical cell. Write the shorthand, or schematic, notation for this cell
Saturday, May 4, 2013 at 12:34am

Practical chemistry
Preparation of 0.1m H2S04 of 500cm3 flask
Saturday, May 4, 2013 at 12:20am

Chemistry PLEASE HELP!
Manganese dioxide reacts with bromide ions to form manganese ions and bromate ions in an acidic aqueous solution. Write the balanced equation for this reaction. Select one: a. Br- + MnO2 + 3H2O Mn2+ + BrO3- + 2H3O+ b. Br- + 3MnO2 + 6H3O+ 3Mn2+ + 9H2O + BrO3- c. 6Br- + MnO2 + ...
Friday, May 3, 2013 at 8:50pm

Chemistry 104 PLEASE HELP ME!!
Calculate Eo (reduction potential) for the following balanced reaction. NiO2 + 2H2O + 2Fe(OH)2 Ni(OH)2 + 2Fe(OH)3
Friday, May 3, 2013 at 8:49pm

Chemistry
Determine the solubility of a sodium sulfate, Na2SO4, in grams per 100g of water, if 0.94 g of Na2SO4 is dissolved in 20 g of water to make a saturated solution.
Friday, May 3, 2013 at 8:22pm

Chemistry
Zinc has three major and two minor isotopes. For this problem, assume that the only isotopes of zinc are the major ones, zinc-64, zinc-66, and zinc-68. The atomic mass of zinc-64 is 63.9291 Da, that of zinc-66 is 65.9260 Da, and that of zinc-68 is 67.9248 Da. Calculate the ...
Friday, May 3, 2013 at 8:17pm

Chemistry 104
Calculate Eo (reduction potential) for the following balanced reaction. NiO2 + 2H2O + 2Fe(OH)2 Ni(OH)2 + 2Fe(OH)3
Friday, May 3, 2013 at 8:13pm

chemistry
A nitric acid solution containing 71.0% by mass of the acid has a density of 1.42g/ml how many grams of nitric acid are present in 1.0L of this solution
Friday, May 3, 2013 at 6:35pm

Chemistry Help
How many moles of ammonia are produced when 2.5 moles of nitrogen are reacted with hydrogen?
Friday, May 3, 2013 at 6:15pm

AP Chemistry Help!!
How many moles of P4O10 are produced when we react 8 moles of phosphorous with oxygen? I know the answer is: 4 mol P produces 1 mol P4O10 8 mol P produces 2 mol P4O10. Or, 1 mol P4O10 x (8 mol P / 4 mol P) = 2 mol P4O10. but, what is the balanced equation?
Friday, May 3, 2013 at 5:06pm

Chemistry II
Calculate the pH at the equivalence point in the titration of 50ml of 0.20 M methylamine (Kb=4.3*10^-4) with a 0.40 M HCL solution.
Friday, May 3, 2013 at 4:24pm

Chemistry
How many moles of P4O10 are produced when we react 8 moles of phosphorous with oxygen? I know the answer is: 4 mol P produces 1 mol P4O10 8 mol P produces 2 mol P4O10. Or, 1 mol P4O10 x (8 mol P / 4 mol P) = 2 mol P4O10. but, what is the balanced equation?
Friday, May 3, 2013 at 2:36pm

Chemistry 104
The reaction of hydrogen peroxide, sulfuric acid and lead results in the production of lead sulfate in an acidic aqueous solution. Write the balanced equation for this reaction.
Friday, May 3, 2013 at 1:40pm

chemistry
A chemistry experiment needed 12.45 grams of chemical to produce one liter of a gas. If Zoe wanted 24 liters of gas, how many kilograms of the chemical will she need?
Friday, May 3, 2013 at 9:18am

chemistry
What volume (in liters) of 0.96 M KOH solution should be added to a 0.090 L solution containing 9.9 g of glutamic acid hydrochloride (Glu, FW=183.59; pKa1=2.23, pKa2 =4.42, pKa3=9.95) to get to pH 10.20?
Friday, May 3, 2013 at 1:47am

chemistry
A 1.857 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.540 grams of KI and 50.00 mL of a 0.00912 M KIO3 solution. The excess I3– was titrated with 50.00...
Thursday, May 2, 2013 at 11:44pm

CHEMISTRY
IF 100.0G OF WATER AT 90'C IS ADDED TO 50.0G OF WATER AT 10'C, ESTIMATE THE FIBNAL TEMPATURE OF WATER. EXPLAIN YOUR REASONING. PLEASE HELP I DONT GET IT AND I HAVE ANOTHER PROBLEM SIMILAR TO THIS
Thursday, May 2, 2013 at 10:47pm

Chemistry
for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?
Thursday, May 2, 2013 at 8:30pm

Chemistry
Solve for A and B 0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B)
Thursday, May 2, 2013 at 8:23pm

Chemistry
If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?
Thursday, May 2, 2013 at 7:37pm

General Chemistry 103
What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms? Please show me how to do this so i can do it for further questions similar to this
Thursday, May 2, 2013 at 7:11pm

Chemistry
If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?
Thursday, May 2, 2013 at 6:52pm

chemistry (buffer)
If 5.00 mL of 1.60 nitric acid is added to a solution of 2.00 mmol thiocyanic acid (HSCN pKa=4.00) and 4.500 mmol calcium thiocyanide, assume a soluble salt- what is teh pOG of the resultant complex solution (of total volume .350L). I worked the problem out and ended up ...
Thursday, May 2, 2013 at 6:50pm

chemistry
Reverse the reactions. Label the acids and bases on the left-hand side of each of the reversed equations? 1. HCl + NH3 => NH4+ + Cl- 2.NH3 + H2O => NH4+ +OH- 3. HCl +H2O => H3O+ +Cl- 4. H3PO4 +H20 => HPO4^-2 +H3O+ 5.H2PO4- +H2O => HPO4^-2 +H3O+
Thursday, May 2, 2013 at 6:33pm

Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5
Thursday, May 2, 2013 at 5:46pm

Chemistry
A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5
Thursday, May 2, 2013 at 5:46pm

chemistry
The organic compound di-n-phthalate is sometimes used as a low-density manometer fluid. Compute the pressure (in torr) of a gas that supports a 517-mm columns di-n-butyl phthalate . The density of mercury is 13.53 g mL-1.
Thursday, May 2, 2013 at 4:56pm

chemistry
what is the volume in liters in H2gas produced at 24 degree celsius and 835 mmhg from the reaction of 12g of many thanks
Thursday, May 2, 2013 at 3:52pm

Chemistry
A sample of calcium carbonate that has a mass of 1.0 g is heated and completely decomposed-calculate. a) the mass of carbon dioxide produced b)the volume of carbon dioxide at SLC c)the volume of carbon dioxide at STP
Thursday, May 2, 2013 at 12:41pm

chemistry
Consider the gold-platinum system which has a value of delta w of -4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole.
Thursday, May 2, 2013 at 11:18am

chemistry
1.Does a pH of 8.6 describe a solution with a higher or lower hydronium ion concentration compared to a neutral solution? Is such as solution called acidic or basic? 2. Compared to a neutral solution, would you expect an acidic solution to have a higher or lower pH and a ...
Thursday, May 2, 2013 at 7:43am

Math
Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 minutes; 42.5ºC after ...
Thursday, May 2, 2013 at 1:35am

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