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May 30, 2015

Homework Help: Science: Chemistry

Recent Homework Questions About Chemistry

Chemistry
I need to figure out the molarity in the problem. A) 3.60g of sulfuric acid in 450.0mL of solution I was going to take 3.60 / 450.0mL = 0.008 B) 2.0 x 10-3 mol Iron(II)nitrate in 12.0mL of Solution 10 *3=30 then I was going to take 30*2.0 =60 60/12.0= 5 I am not sure if this ...
Sunday, March 8, 2015 at 4:05pm

Chemistry
What is the percentage yield for a reaction if you predicted the formation of 21 grams of C6H12 and actually recovered only 3.8 grams?
Sunday, March 8, 2015 at 3:44pm

Chemistry
What is the method used to separate water from bleached wood pulp?
Sunday, March 8, 2015 at 3:30pm

Chemistry
How many liters of oxygen a@STP will produce 195 grams of diphosphorus pentoxide when reacted with sufficient phosphorus?- exact question. Could someone plz help I am confused and if you could help me put it in dimensional analysis.
Sunday, March 8, 2015 at 3:26pm

chemistry
A mixture of 3.00 volumes of H2 and 1.00 volume of N2 reacts at 344 C to form ammonia. The equilibrium mixture at 110.0 atm contains 47.00 % NH3 by volume. Calculate Kp for the reaction, assuming that the gases behave ideally.
Sunday, March 8, 2015 at 1:01pm

Chemistry
A single titration was performed which required 12.60 mL of 0.100 M Na2S2O3. The density of the original, undiluted unknown bleach was 1.040 g/mL. Calculate the number of moles of ClO- in the sample titrated.
Sunday, March 8, 2015 at 12:24pm

Chemistry
6Li(s) + N2(g) 2Li3N(s) a) What mass of lithium is required to produce 0.575 g of Li3N in the balanced reaction? b) What mass of nitrogen is required for the reaction? ----------------------------------------​--- I tried dimensional analysis in a couple different ways ...
Sunday, March 8, 2015 at 11:47am

chemistry
Why people feel thirsty after eating salty foods. explain in terms of colligative property
Sunday, March 8, 2015 at 11:11am

AP Chemistry
Suppose you have added 200.0 mL of a solution containing 0.5000 moles of acetic acid per liter to 100.0 mL of 0.50000 M NaOH. What the is the final pH? The Ka of acetic acid is 1.77 x 10^-5.
Sunday, March 8, 2015 at 1:06am

chemistry
Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 43.9 g of hexane is mixed with 57. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Round your answer to significant ...
Saturday, March 7, 2015 at 11:56pm

chemistry
A scientist measures the standard enthalpy change for the following reaction to be -172.4 kJ : 2SO2(g) + O2(g) 2SO3(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of SO2(g) is what in kJ/mol?
Saturday, March 7, 2015 at 9:58pm

Chemistry :/
Experiment 1 results: mass of crucible 88g mass of hydrate 93g mass of salt 91.196g 1. Calculate the following: a:mass of water in the hydrate sample (g) b:number of moles of water in the sample c:mass of pure salt in the sample (g) d:number of moles of salt in the sample e:...
Saturday, March 7, 2015 at 9:00pm

Chemistry
Experiment 1 results: mass of crucible 88g mass of hydrate 93g mass of salt 91.196g 1. Calculate the following: a:mass of water in the hydrate sample (g) b:number of moles of water in the sample c:mass of pure salt in the sample (g) d:number of moles of salt in the sample e:...
Saturday, March 7, 2015 at 8:57pm

chemistry
A sample of tin (Cp = 0.227 J/g•°C) is placed in a freezer. Its temperature decreases from 15.0°C to −10.0°C as it releases 543 J of energy. What is the mass of the sample?
Saturday, March 7, 2015 at 6:38pm

chemistry
why doesnt the radius ratio rule work for TlCl3??? the division would be the radius of the cation / radius of the anion. For Tl3+ and Cl-...88pm/181pm = .49 which would correspond to a 'zinc blende' crystal structure and not a CsCl type crystal as the rest of the ...
Saturday, March 7, 2015 at 2:27pm

chemistry
Monosodium glutamate (MSG), a food-flavor enhancer, has been blamed for “Chinese Restaurant Syndrome,” the symptoms of which are headaches & chest pains. MSG has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent O, 8.29 percent N, & 13...
Friday, March 6, 2015 at 11:24pm

Chemistry
Monosodium glutamate (MSG), a food-flavor enhancer, has been blamed for “Chinese Restaurant Syndrome,” the symptoms of which are headaches & chest pains. MSG has the following composition by mass: 35.51 percent C, 4.77 percent H, 37.85 percent O, 8.29 percent N, & 13...
Friday, March 6, 2015 at 11:18pm

organic chemistry
Hi! If you could help me in on how to do Organometallics reaction and mechanisms. Im totally lost. Any website or videos that could help me. I have search in youtube but the videos that i watched werent helpful
Friday, March 6, 2015 at 10:17pm

chemistry
In 3-4 sentences, identify how the geometric structure of NF3 is different than that of NF4+. Explain how the geometry affects the ability of the molecules to experience a dipole affect.
Friday, March 6, 2015 at 10:01pm

Chemistry
Calculate pH of a solution that is 0.255M in CH3NH2 and 0.105M in CH3NH3Br
Friday, March 6, 2015 at 5:35pm

Chemistry
Calculate the pH of a solution that is 0.185M in HC2H3O2 and 0.125M in KC2H3O2
Friday, March 6, 2015 at 5:09pm

chemistry
As a result of mineral erosion and biological activity, phosphate ion is common in natural waters, where it often precipitates as insoluble salts, such as Ca3(PO4)2. Calculate Qsp when [Ca2+]init = [PO43-]init = 2.161 10-6 M in a given river. Ksp of Ca3(PO4)2 = 1.2 ✕ 10...
Friday, March 6, 2015 at 2:54pm

Chemistry
Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O). Write a balanced equation for this reaction. Assuming that all volume measurements occur at the same temperature and pressure, how many liters of ...
Friday, March 6, 2015 at 2:41pm

Chemistry
The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4 (s) ---> 2O2 (g) + LiCl (s) If you have 500 g of LiClO4, ...
Friday, March 6, 2015 at 2:40pm

chemistry
If silver phosphate has a Ksp of 2.28e-16 at a certain temperature, what is the molar solubility of silver phosphate at the same temperature?
Friday, March 6, 2015 at 1:40pm

Chemistry
Light from three different lasers (A, B, and C), each with a different wavelength, was shined onto the same metal surface. Laser A produced no photoelectrons. Lasers C and B both produced photoelectrons, but the photoelectrons produced by laser C had a greater velocity than ...
Friday, March 6, 2015 at 8:43am

chemistry
How many grams of water will be produced by the reaction of 7.00g NH3 of 9.00g of NO?
Thursday, March 5, 2015 at 11:15pm

Chemistry
a) A current of 1.50 Amperes passes through a solution of AgNO3 for 3.0 hours. What mass, in grams, of silver collects on the cathode? (molar mass of silver = 107.9 g/mol) b) How many seconds would it take to collect 100 g of silver to collect on the cathode if 1.50 Amperes ...
Thursday, March 5, 2015 at 10:50pm

Chemistry
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.250 M phosphoric acid solution. [H3PO4] = ? [H2PO4^-] =? [HPO4^2-]=? [PO4^3-]=? [H^+]=? [OH^-]=? pH=?
Thursday, March 5, 2015 at 10:32pm

chemistry
If four grams of Oxygen and four grams of Helium are placed in a five liter vessel at 338 K, what will be the partial pressure of each gas and the total pressure in the vessel?
Thursday, March 5, 2015 at 8:34pm

chemistry
In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 5.0 M acetone + 10 mL 1.5 M HCl + 10 mL 0.005 M I2 + 20 mL H2O A student found that it took 400 seconds for the color of the I2 to disappear. a) How many ...
Thursday, March 5, 2015 at 6:39pm

Chemistry
A .2688-g sample of a monoprotic acid neutralizes 16.4 mL of .08133 M kOH solution, calculate the molar mass of the solution? First of all how can I calculate the molar mass?
Thursday, March 5, 2015 at 6:04pm

chemistry
Hot air balloons gain their lift from the reduction in the density of air that occurs when the air in the envelope is heated. To what temperature should you heat a sample of air (initially at 374 K) to increase its volume by 13%? Answer in units of K. thanks for helping !
Thursday, March 5, 2015 at 6:03pm

chemistry
A container of gas at 24 psi is compressed to one eighth its original volume. What is the new pressure of the gas? Answer in units of psi.
Thursday, March 5, 2015 at 5:49pm

CHEMISTRY!!!!
Determine the pH at the equivalence point in the titration of 41.0 mL 0.096 M formic acid with 0.108 M NaOH at 25oC. Calculate the pH of a solution that is 0.22 M pyridinium ion (C5H5NH+) at 25oC.
Thursday, March 5, 2015 at 4:57pm

Chemistry
Complete and balance the molecular equation, including phases, for the reaction of aqueous iron(III) nitrate, Fe(NO3)3 and aqueous lithium hydroxide, LiOH Enter the balanced net ionic equation, including phases, for this reaction.
Thursday, March 5, 2015 at 3:43pm

Inorganic Chemistry
Which of the following species contain an inversion center? Choose all that apply. SeF6 [IF4]- SnF4 InH3
Thursday, March 5, 2015 at 3:27pm

Inorganic Chemistry
Which of the following molecules contain a C3 axis but not a σh plane? AlCl3 SeO3 SbBr3 PCl3
Thursday, March 5, 2015 at 3:26pm

Inorganic Chemistry
Which of the following species contain a C4 axis and a σh plane? Choose all that apply. [ICl4]- SiCl4 XeF4 GeH4 [PO4]3
Thursday, March 5, 2015 at 3:25pm

chemistry
A chemist prepares a sample of hydrogen bromide and finds that it occupies 249 mL at 60◦C and 552 Torr. What volume would it occupy at 0◦C at the same pressure? Answer in units of mL
Thursday, March 5, 2015 at 3:07pm

Chemistry
A 20.0-mL sample of 0.300 M HBr is titrated with 0.150 M NaOH. What is the pH of the solution after 40.3 mL of NaOH have been added to the acid?
Thursday, March 5, 2015 at 2:19pm

chemistry
how do i find a name and formula for a combination of an anion and a cation? ex: Na2CO3 + Ba(NO3)2
Thursday, March 5, 2015 at 2:06pm

chemistry
how do i find a name and formula for a combination of an anion and a cation? ex: Na2CO3 + Ba(NO3)2 please help!
Thursday, March 5, 2015 at 1:46pm

chemistry 12u
2NH(g) +2.5O2(g) ---><--- 2NO(g) + 3H2O(g) + Heat
Thursday, March 5, 2015 at 11:14am

Ap chemistry
Suppose NaOH is added to the following system when it is at equilibrium. NH3 (aq) + H2O (l) = NH4 (aq) + OH (aq) a) in which direction will the reaction shift after the NaOH is added? b) will this stress increase or decrease the value of the reaction quotient, Q? C) will the ...
Thursday, March 5, 2015 at 10:52am

CHEMISTRY
HOW MANY MOLES OF SILVER IODIDE COULD BE PRODUCED IF THIS REACTION WAS STARTED WITH 4.3 MOL IODINE AND AN EXCESS OF SILVER?
Thursday, March 5, 2015 at 7:11am

chemistry
How many moles of hydrogen would be obtained if 2.7g of aluminium reacts with excess hydrochloric acid?
Thursday, March 5, 2015 at 4:24am

Chemistry
The mass of spectrum of 2,4-dimethylpentane shows peaks at m/z 43, 57, and 85. Show the fragments which produce these peaks.
Thursday, March 5, 2015 at 12:13am

chemistry
the vapor pressure of carbon sulfide is 355.6 torr at 25 degrees Celsius. what is the vapor pressure of a solution prepared by dissolving 12.52 g naphthalene (C10H8, 128.2 g/mol) in 125.0 mL CS2 liquid (76.14 g/mol, 1.261 g/mL)? Assume the solution obeys Raoult's law, and ...
Wednesday, March 4, 2015 at 10:31pm

Chemistry
Name three properties of metal for which metallic bonds are responsible
Wednesday, March 4, 2015 at 9:51pm

Chemistry
At 19.0°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 151.0 kJ/mol? I got 1.06 which wasn't right
Wednesday, March 4, 2015 at 9:42pm

CHEMISTRY
How many grams of sulphuric acid (H2SO4) are needed to make 1.5L of a 1.5 molar solution? ~~~~~~~~ Here's my work so far: 1.5L x 1.5mol/L = 2.25molH2SO4 2.25mol H2SO4 x 98.09g H2SO4 / 1mol H2SO4 = 220.7025g H2SO4 I wanted to ask if my work is correct, because I am unsure ...
Wednesday, March 4, 2015 at 9:22pm

Chemistry
Calculate the pH of a buffer that is 0.130M in NaHCO3 and 0.295M in Na2CO3
Wednesday, March 4, 2015 at 4:31pm

Chemistry
After 62.0 min, 11.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?
Wednesday, March 4, 2015 at 2:48pm

Chemistry
Help i am trying to plot data and then determine the best value of R. my data P(atm) 2.014,2.797,3.571,4.114 and V(L) 21.153,15.231,11930,10.355. there is more data but if I am given the process at starting place I would like to complete myself. thank you
Wednesday, March 4, 2015 at 2:38pm

Chemistry
5.0x101 mg of NaCl is added to 0.100 L of a 1.4x10-2 M solution of Pb(NO3)2. Calculate the resulting equilibrium concentration of Pb2+ after mixing. Show all work.
Wednesday, March 4, 2015 at 1:09pm

CHEMISTRY
HOW MANY MOLES OF SILVER IODIDE COULD BE PRODUCED IF THIS REACTION WAS STARTED WITH 4.3 MOL IODINE AND AN EXCESS OF SILVER?
Wednesday, March 4, 2015 at 12:59pm

Chemistry
Please help! I have 30 ml bottle of 5% hydrocholric acid. Ned to dillute to make 200 ml of .01 M hydrocholric acid. I dont know how much of the bottle solution to add to how much distilled water to get 200 ml at .01 M
Wednesday, March 4, 2015 at 12:52pm

Chemistry Dr. Bob222
For Cup C Mass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g mass of cup,solution, stirrer after reaction: 57.64 difference (CO2): 0.30g Calculate the theoretical yield of carbon dioxide in the plastic cup C. ** u ...
Wednesday, March 4, 2015 at 11:19am

Chemistry
how much heat is absorbed when 63.7 grams of water at 100 degrees Celsius is converted to steam at 100 degrees Celsius? -I need help figuring out how to do this.
Wednesday, March 4, 2015 at 11:12am

Chemistry
5% hydrocholric acid in 30ml (1 fl oz) - how to dillute to make 200 ml of .01 M? I think i need to first fin concentration solute /amount of solution x 100 .05/30 x100 = .166 Then i get lost!
Wednesday, March 4, 2015 at 10:42am

chemistry
What is the equation that represents the reaction of esterification of crystal violet? Thanks
Wednesday, March 4, 2015 at 10:39am

Chemistry
Calculate the pOH of a 0.410 M Ba(OH) solution.
Wednesday, March 4, 2015 at 10:24am

Chemistry
what is the PH of a solution of .1 M NAN3 that disassociates into HN3
Wednesday, March 4, 2015 at 10:05am

English *Answers Check*
What is acupuncture? 1 Acupuncture is one of the oldest, most commonly used medical procedures in the world. Originating in China more than 2,000 years ago, acupuncture began to become better known in the United States in 1971, when New York Times reporter James Reston wrote ...
Wednesday, March 4, 2015 at 8:04am

chemistry
how many grams of CuSO4.5H2O is needed to prepare 0.01 M solution?
Wednesday, March 4, 2015 at 1:33am

Chemistry
Magnesium hydroxide, Mg(OH)2, found in milk of magnesia, has a solubility of 7.05 × 10-3 g L-1 at 25 °C. Calculate Ksp for Mg(OH)2.
Wednesday, March 4, 2015 at 1:26am

Chemistry Dr. Bob222
Ok, For Cup C Mass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g mass of cup,solution, stirrer after reaction: 57.64 difference (CO2): 0.30g Part B: Limiting Reactants Plastic Cup C 7. Determine which reactant is ...
Wednesday, March 4, 2015 at 1:02am

Chemistry
Consider the titration of 30.0 mL of 0.100 M NH3 with 0.150 M HCl. calculate the pH after the following volumes of titrant have been added:(a) 0mL (b) 10.0 mL (c) 19.5 mL (d) 20.0 mL (e) 20.5 mL (f) 30 mL
Wednesday, March 4, 2015 at 12:00am

chemistry
Given the following thermochemical data: H2O(l)+2AgNO3(aq) ¡æ 2HNO3(aq)+Ag2O(s) ¥ÄH = 44.8 kJ 2Ag(s)+¨öO2(g) ¡æ Ag2O(s) ¥ÄH = -31.0 kJ ¨öO2(g)+H2(g) ¡æ H2O(l) ¥ÄH = -285.8 kJ Use Hess¡¯...
Tuesday, March 3, 2015 at 11:42pm

chemistry
Given the following data: 4PCl5(s) ¨ P4(s) + 10Cl2(g) ƒ¢H = +1774 kJ P4(s) + 6Cl2(g) ¨ 4PCl3(l) ƒ¢H = -1278.8 kJ Find the ƒ¢H of the following reaction: PCl5(s) ¨ PCl3(l) + Cl2(g)
Tuesday, March 3, 2015 at 11:41pm

chemistry
The heat of solution of potassium acetate (KC2H3O2) in water is -15.3 kJ/mol. If 18.8 g of KC2H3O2(s) is dissolved in 655 mL of water that is initially at 25.8 °C, what will be the final temperature (in degrees Celcius) of the resulting aqueous solution? (Assume no heat ...
Tuesday, March 3, 2015 at 11:40pm

Chemistry Dr. Bob222
Ok, UMMMM I thought I was good.. Till now.. Ok, For Cup C Mass of cup,water,stirrer: 55.15 Mass of sodium bicarbonate: 2.02g mass of citric acid: 0.77g total mass: 57.94g mass of cup,solution, stirrer after reaction: 57.64 difference (CO2): 0.30g Part B: Limiting Reactants ...
Tuesday, March 3, 2015 at 11:40pm

Chemistry Dr. Bob
Plastic Cup B Mass of cup, water and stirrer: 53.75g mass of sodium bicarbonate: 2.02g mass of citric acid: 1.52g total mass of all: 57.29g mass of cup, solution, stirrer after reaction: 56.59g difference (CO2): 0.70 g Now, Here's the problems it's basically just like ...
Tuesday, March 3, 2015 at 11:30pm

chemistry
when the nuclear charge increases, does the electron;s attraction to the nucleus get stronger or weaker ?
Tuesday, March 3, 2015 at 11:00pm

Chemistry Ap
At 20◦C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 35.5 torr at 20◦C. Calculate the mole fraction of methanol in this solution. Assume the solution ...
Tuesday, March 3, 2015 at 10:46pm

chemistry
Perform this operation and report the answer to the correct number of significant figures: What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3. Show all calculations leading to an answer. Vcube= length-width-height Vcube = 3...
Tuesday, March 3, 2015 at 10:42pm

Chemistry
Write the formula for iron (III) sulfate. My answer is Fe2(SO4)3
Tuesday, March 3, 2015 at 10:25pm

chemistry
Complete and balance this reaction: sulfuric acid reacts with barium chloride
Tuesday, March 3, 2015 at 9:57pm

Chemistry
If an element has 12 protons and 17 neutrons, how many electrons must it have?
Tuesday, March 3, 2015 at 9:53pm

Chemistry
Why are the atomic masses of elements usually decimal numbers?
Tuesday, March 3, 2015 at 9:45pm

Chemistry Dr. Bob
This is in response to the fact that my experiment had me come up with my own.. I was supposed to measure out as close to 1g as possible of sodium bicarbonate as possible.. This is my lab procedures: Plastic Cup A 1. Measure out 50 mL of distilled water with a 100-mL graduated...
Tuesday, March 3, 2015 at 9:30pm

chemistry
How many dots should be indicated in the electron dot structure of arsenic? How many electrons are in the highest energy orbital of the element copper?
Tuesday, March 3, 2015 at 8:56pm

Chemistry AP
At 20◦C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 35.5 torr at 20◦C. Calculate the mole fraction of methanol in this solution. Assume the solution ...
Tuesday, March 3, 2015 at 8:41pm

Chemistry
Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period?
Tuesday, March 3, 2015 at 8:34pm

chemistry
Why do compounds with strong intermolecular attractive forces have higher boiling points than compounds with weak intermolecular attractive forces?
Tuesday, March 3, 2015 at 8:27pm

chemistry
What does ammonium Iodide equation look like dissolved in water?
Tuesday, March 3, 2015 at 8:07pm

Chemistry
Would you expect H2O or H2S to be more volatile at the same temperature and pressure? Why?
Tuesday, March 3, 2015 at 7:59pm

Chemistry Dr. Bob
Now, I'm going to post how to figure out the theoretical yield of carbon dioxide from 1.00g sodium bicarbonate... The reaction of citric acid and sodium bicarbonate is written as H3C6H5O7(aq) + 3 NaHCO3(aq) → Na3C6H5O7(aq) + 3 H2O(l) + 3 CO2(g) Um.. I think it's ...
Tuesday, March 3, 2015 at 7:57pm

Chemistry
The following is a Limiting Reactant problem: Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g)  Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? Show all ...
Tuesday, March 3, 2015 at 7:42pm

Chemistry
Hello, I'm having some trouble getting started on this question: "Calculate the volume and mass required to make 0.1 M solutions of Propionic Acid (1.0 M) and Sodium Propanoate (96.06 g/mol)" I would normally not have trouble answering this question when either ...
Tuesday, March 3, 2015 at 7:29pm

Chemistry
Identify the precipitate in this reaction: calcium nitrate reacts with sodium phosphate. 2Na3PO4 + 3Ca(NO3)2--->6NaNO3 + Ca3(PO4)2 is that right ?
Tuesday, March 3, 2015 at 7:28pm

Chemistry
What is the magnetism of F2+, and how many unpaired electrons does it possess? Would F2+ act the same way as F+? In that case it would be paramagnetic and have 2 electrons.
Tuesday, March 3, 2015 at 7:02pm

Chemistry
What is the volume of 20.55 grams of hydrogen gas at a pressure of 1.215 atmospheres at 29.3 degrees Celcius? how do you solve this
Tuesday, March 3, 2015 at 6:55pm

Chemistry
How many nonbonding electrons does phosphorus have? is it 5 valence electrons
Tuesday, March 3, 2015 at 6:20pm

Chemistry
What is the percentage of nitrogen in N2O?
Tuesday, March 3, 2015 at 6:09pm

Chemistry (organic)
You have a solution that contains 5.0 g of oxalic acid dissolved in 150 mL of water. This solution is placed in a separatory funnel, and then 100 mL of diethyl either is added to the separatory funnel and an extraction is performed (diethyl ether and water are immiscible). Use...
Tuesday, March 3, 2015 at 5:55pm

chemistry
Can someone show me the answer to this as I am well confused. What mass of lead oxide reacts with 2400dm3 of carbon monoxide?
Tuesday, March 3, 2015 at 4:29pm

chemistry help fast
The following reaction occurs in a blast furnace Fe2O3 +3Co--------2Fe+3Co2 Calculate the mass of carbon monoxide needed to reduce 16 tones of iron (111) oxide
Tuesday, March 3, 2015 at 4:23pm

Chemistry
What volume (mL) of 0.20 M HCl needs to be added to 1.23 L of 0.10 M acetic acid to reduce the percent ionization to 1.00%? Assume the volume of HCl added is negligible compared to the volume of the whole solution, and that the small x approximation is valid.
Tuesday, March 3, 2015 at 4:10pm

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