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December 20, 2014

Homework Help: Science: Chemistry

Recent Homework Questions About Chemistry

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chemistry
How do carboxylic acids and esters differ in odor? Check all that apply. Esters smell sweeter, often fruity. Carboxylic acids have often not very pleasant smelling. Carboxylic acids smell sweeter, often fruity. Esters have often not very pleasant smelling.
Friday, November 7, 2014 at 4:01pm

chemistry
Which of the following is a fluorinated hydrocarbon? Which of the following is a fluorinated hydrocarbon? carbon tetrachloride teflon DDT chloroform
Friday, November 7, 2014 at 3:51pm

chemistry
Which of the following is a feature of an aromatic compound? Which of the following is a feature of an aromatic compound? It has a strong aroma. Its formula contains only six carbon atoms. It contains a benzene ring. It contains only carbon-carbon double bonds.
Friday, November 7, 2014 at 3:43pm

chemistry
What volume (in milliliters) of 0.496 M aqueous ammonia, NH3, could be made from 17.6 mL of concentrated aqueous ammonia (15.0 M)? (atomic masses: N = 14.01, H = 1.008)
Friday, November 7, 2014 at 2:04pm

Chemistry due soon
If the following reaction: NO(g) + 1/2O2(g) NO2(g) has the following enthalpy change: H° = -56 kJ/mol What is the enthalpy of the decomposition reaction of 2 moles of NO2? A. 112 kJ B. 56 kJ C. -56 kJ D. -112 kJ i think the answer is d
Friday, November 7, 2014 at 11:00am

Chemistry
Does the Hydrogen Bondings in ice form, break, and reform all the time, just like in water?
Friday, November 7, 2014 at 10:02am

Chemistry
Calculate the kinetic energy change in the water that occurs when 10,000lb/hr flow in a pipe that is reduced from a diameter of 2 in. to a diameter to 1 in. Any ideas on solving this? The answer is 2.7 lbf*ft.
Friday, November 7, 2014 at 9:39am

chemistry due soon
Which reaction shows that the enthalpy of formation of CS2 is Hf = 89.4 kJ/mol? A. C(s) + 2S(s) CS2(l) + 89.4 kJ B. C(s) + 2S(s) + 89.4 kJ CS2(l) C. C(s) + 2S(s) + 89.4 kJ CS2(l) + 89.4 kJ D. C(s) + 2S(s) CS2(l) I think the answer is a or b
Friday, November 7, 2014 at 9:12am

chemistry
Which of the following compounds are organic? Check all that apply. SO2 CH3F C8H18O Cu(NH3)6Cl2
Friday, November 7, 2014 at 12:21am

Chemistry
State the full electron configuration of a free nitrogen atom.
Friday, November 7, 2014 at 12:18am

chemistry
CH3-C=C-CH3 IS CLASSIFIED AS A) ALKANE B) ALKYNE C) AROMATIC COMPOUND D) HALOALKANE E) ALKENE
Friday, November 7, 2014 at 12:17am

Chemistry (EMERGENCY)
drive.google. com /viewerng/viewer?a=v&pid=sites&srcid=ZGV​mYXVsdGRvbWFpbnxnaHNpYmNoZW1pc3RyeXxneDo​xMmEwMTFhYWEwNWNiYjg0 #1-3 must be completed for homework, but my teacher failed to thoroughly explain the material to my class, and I have no idea what to do. ...
Thursday, November 6, 2014 at 11:43pm

Chemistry due soon
What is enthalpy? A. Enthalpy is the kinetic energy of a system. B. Enthalpy is the heat involved in a reaction. C. Enthalpy is the temperature of a reaction. D. Enthalpy is the mass involved in a reaction. I think the answer is a or b
Thursday, November 6, 2014 at 10:45pm

chemistry
Rank the following elements by electron affinity, from most positive to most negative EA value: tellurium, bismuth, neon, sodium, iodine i tried Te, Bi, Na, I, Ne and it was incorrect.
Thursday, November 6, 2014 at 9:16pm

Chemistry
Sort these species into isoelectronic groups. It doesn't matter which group goes in which box, so long as the correct species are grouped. Ne Mg2+ S2- Ti4+ K+ He Li+ Be2+ N3-
Thursday, November 6, 2014 at 8:48pm

Chemistry
A reaction: A(aq)+B(aq)<-->C(aq) has a standard free-energy change of –4.69 kJ/mol at 25 °C. What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? I know ...
Thursday, November 6, 2014 at 8:33pm

CHEMISTRY
If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP?
Thursday, November 6, 2014 at 8:04pm

Chemistry
What is the molarity of a 2.50 x 102 cm3 solution containing 560.0 g of C6H12O6?
Thursday, November 6, 2014 at 6:26pm

chemistry
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at most 2 bonds?
Thursday, November 6, 2014 at 5:35pm

Chemistry
Calculate the percent deviation from ideal behavior for 1.03 mol of CO2 gas in a 1.10 L container at 35.0°C, which exerts a pressure of 20.3 atm.
Thursday, November 6, 2014 at 4:53pm

chemistry
A mixture of gases has the following partial pressure for the component gases at 20 degrees Celsius: oxygen 180.0 torr, nitrogen 3200 torr, and hydrogen 246.0 torr. Calculate the pressure of the mixture.
Thursday, November 6, 2014 at 4:50pm

chemistry
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution before the addition of any KOH. The Kb of NH3 is 1.8 × 10-5. I thought that I would need a second volume to find the moles of NH3?
Thursday, November 6, 2014 at 4:39pm

Chemistry
A mouse is placed in a sealed chamber with air at 755.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in this chamber is measured to be exactly 1.70 L, the temperature is held constant at 305 K. After two ...
Thursday, November 6, 2014 at 4:17pm

Chemistry
If 10 cm3 of ethanol is added to 10 cm3 of water, does the initial temperature of water change upon addition of ethanol?
Thursday, November 6, 2014 at 11:40am

Chemistry
Which direct measurement would provide evidence that the energy of a substance had changed? A. temperature B. heat C. mass D. volume I think the answer is a or b
Thursday, November 6, 2014 at 10:38am

chemistry
when x gram of carbon is completely burnt in certain amount of oxygen y gram of carbondioxide is form.what mass of Co2 will be produced when 2x gram of carbon is burnt in z gram of oxygen. which law of chemistry will help me to find the answer
Thursday, November 6, 2014 at 8:43am

chemistry
What does a slash (/) mean in chemistry?
Thursday, November 6, 2014 at 8:06am

chemistry
Let's say for example I have 5g of copper in a beaker. Mass would be 5g + mass of beaker. If I add any given amount of water to the beaker containing the copper, that will change the mass of the beaker containing the copper. Am I correct so far? So then if I pour out the ...
Wednesday, November 5, 2014 at 11:56pm

Chemistry
How many grams of chlorine gas are needed to make 5.40 x 10 6 g or a solution that is 1.40 ppm chlorine by mass?
Wednesday, November 5, 2014 at 11:38pm

Chemistry
Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points: Li2SO4 K3PO4 LiNO3
Wednesday, November 5, 2014 at 11:33pm

Chemistry Physics
A steel pipe 8.25 m long is installed at 45°C. Find the decrease in length when coolants at -60°C pass through the pipe
Wednesday, November 5, 2014 at 10:37pm

chemistry
what is a sigma bond
Wednesday, November 5, 2014 at 10:04pm

chemistry
a 111.4mg ore sample containing iro with acid , filtered and diluted to 200.0ml in volumetric flask. a 1000ml aliquot is transferred to a 100.ooml volumetric flask containing hrdroxylamine hydrochloride, sodium acetate and 1,10- phenanthroline and diluted to the mark . the ...
Wednesday, November 5, 2014 at 9:18pm

Chemistry
In the reaction 2HgO(s) --> 2Hg(l) + O2(g) we measure the evolution of gas to determine the rate of reaction. At the beginning of the reaction (at 0 minutes), 0.02 L of O2 is present. After 20 minutes the volume of O2 is 0.36 L. What is the rate of reaction? Question 4 ...
Wednesday, November 5, 2014 at 9:15pm

Chemistry
A person’s blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma with a potassium dichromate solution. The balance is 16H+ (aq) + 2Cr2O72- (aq) + C2H5OH (aq) 4Cr3+ (aq) + 2CO2 (g) + 11H2O (l) If 35.46 mL of 0.05961 M Cr2O72- is required to ...
Wednesday, November 5, 2014 at 9:00pm

Chemistry
if you are given the equation 2NO(g)+o2(g)->2NO2 and you are given the volume of NO is 150mL. how do you find what the volume of O2 is required (at the same pressure and temperature)?
Wednesday, November 5, 2014 at 9:00pm

Chemistry
Calculate the rate constant, k, for the reaction 2H2O2(l) --> 2H2O(l) + O2(g) Using the rate, - 0.02 mol/L.min H2O2, and the initial concentration, [H2O2] = 0.5 mol/L Question 7 options: - 25/min 25/min - 0.04/min 0.04/min
Wednesday, November 5, 2014 at 8:19pm

chemistry
3Cl2 +6KOH->KClO3 +5KCl =3H2O write a conversion factor that could be used to convert between moles od potassium hydroxide and moles of potassium chlorate
Wednesday, November 5, 2014 at 7:54pm

chemistry
Does one mole of copper have the same mass as one mole of iron? Explain. - I say no since: 1 mol Cu = 63.55g/mol 1 mol Fe = 55.85g/mol So 1 mol of copper is 63.55g, while 1 mol of iron is 55.85g. So they have a different mass because their molar masses are different, right?
Wednesday, November 5, 2014 at 7:23pm

chemistry
Use Table 9.4 to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3287 kJ of heat for methane gas at 11 oC and 3.40 atm pressure?
Wednesday, November 5, 2014 at 6:39pm

chemistry
Using Table 9.4, calculate an approximate enthalpy (in kJ) for the reaction of 1.02 g gaseous methanol (CH3OH) in excess molecular oxygen to form gaseous carbon dioxide and gaseous water.
Wednesday, November 5, 2014 at 6:39pm

Chemistry Physics
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
Wednesday, November 5, 2014 at 6:10pm

chemistry
K(s)+NH3(g)→ ?
Wednesday, November 5, 2014 at 5:15pm

Chemistry, Check 1 easy question!!!
What type of bond will a metal cation most likely form? I think its Iconic bond
Wednesday, November 5, 2014 at 5:10pm

chemistry
Is the number of moles of an element reacted equal to the number of moles of an element produced? -Let's say for example, 5g of copper. So the molar mass of copper (according to my textbook in which I need to use those numbers) is 63.55g/mol So 5g / 63.55g/mol = 0.08mol So...
Wednesday, November 5, 2014 at 4:48pm

Chemistry
Determine which ions have noble-gas configurations: Cd2+ Ru3+ P3− As3− Ag+ Zr4+ Thanks for any help. (I tried As3- and Zr4+, but that was wrong, so maybe i'm just missing one.
Wednesday, November 5, 2014 at 2:57pm

chemistry
A student obtained an average PV value of 42,000 in column (f) of the data table. If the syringe had been able to be adjusted to a volume of 35.0 mL, what would the pressure be inside the flask?
Wednesday, November 5, 2014 at 2:32pm

chemistry
Calculate the percent deviation from ideal behavior for 0.85 mol of CO2 gas in a 1.20 L container at 45.0°C, which exerts a pressure of 19.2 atm.
Wednesday, November 5, 2014 at 2:00pm

science, chemistry
OBJECTIVE: to find out which of two indicators, methyl orange or phenolphthalein, gives more reliable and consistent results in the titration of H3PO4 with NaOH. REQUIREMENT: (1). Phosphoric acid solution of unknown concentration. (2). Standard NaOH solution. (3). Methyl ...
Wednesday, November 5, 2014 at 12:53pm

Chemistry
Cs(s)+H2O(l)→ ? i thought it was H2+CsOH but the computer says that's wrong.
Wednesday, November 5, 2014 at 12:38pm

chemistry
A weather balloon is filled with 0.295 m3 of helium on the ground at 18 °C and 756 torr. What will the volume of the balloon be at an altitude of 10 km where the temperature is 48 °C and the pressure is 0.14 atm?
Wednesday, November 5, 2014 at 11:16am

chemistry
what is the procedure for determining the boiling point of 1 M solution of sugar,urea,glucose,NaCl,BaCl2,AlCl3
Wednesday, November 5, 2014 at 6:43am

Chemistry please help
A 1.516 M soltion is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
Wednesday, November 5, 2014 at 6:08am

Chemistry
A sample of light has a wavelength of 2.61 x 10^-12 m. What is it's frequency? A popular radio station broadcasts with a frequency of 94.7 mHz. What is the wave length of the broadcast? (1MHz = 1 x10^6 HZ) What is the wavelength of electromagnetic radiation having a ...
Tuesday, November 4, 2014 at 10:14pm

Chemistry
A piece of copper of mass 21.3 g at 106.0 °C is placed in a vessel of negligible heat capacity but containing 53.0 g of water at 19.3 °C. Calculate the final temperature of the water. I keep getting 22 celsius and I'm not sure where I'm going wrong. I plug it ...
Tuesday, November 4, 2014 at 10:08pm

Chemistry
If 0.85 mol of a diatomic molecule has a mass of 23.8g, identify the molecule? We tried to multiply .85 mol and 23.8g and then multiply by 2 to get an answer, but I believe I might be heading in the wrong direction.
Tuesday, November 4, 2014 at 9:48pm

Chemistry
I am a parent trying to help with my childs homework. This is the question that has us stuck. Can you assist us? Boron trioxide B203 , reacts with waterto produce boric acid, B(OH)3. B2O3(s) + 3H2o (l) -> 2B(OH)3(s) Ricardo adds 27.2 g of B2O3 to an excess of h2O, and the ...
Tuesday, November 4, 2014 at 8:44pm

chemistry
0.688 g of antacid was treated with 50.00 mL of 0.100 M HCl. The excess acid required 4.21 mL of 1.200 M NaOH for back titration. What is the neutralizing power of this antacid expressed as mmol(millimoles) of HCl per gram of antacid?
Tuesday, November 4, 2014 at 8:19pm

chemistry
Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this resonance structures have?
Tuesday, November 4, 2014 at 7:08pm

chemistry
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other oxygens are bonded to each N. How many equivalent resonance structures are there that satisfy the octet rule and where O makes at most 2 bonds?
Tuesday, November 4, 2014 at 7:00pm

Chemistry
How many resonance structures do these following acids have? H2CO3-carbonic acid H3PO4-phosphoric acid H2SO4-sulfuric acid HNO3-nitric acid CH3COOH- acetic acid CH2ClCOOH- chloroacetic acid CHCl2COOH- dichloroacetic acid CCl3COOH- trichloroacetic acid
Tuesday, November 4, 2014 at 6:55pm

Chemistry
2 moles of ideal gas at 300K, initial volume 25 L, are compressed under an external pressure at 3600 torr. Assuming the temp and the internal energy of gas do not change, what is the entropy change of the gas? (Assume the heat flow is reversible)
Tuesday, November 4, 2014 at 6:52pm

Chemistry
What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H. 4. How is this solved?
Tuesday, November 4, 2014 at 6:30pm

chemistry
How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?
Tuesday, November 4, 2014 at 5:53pm

Chemistry
A 1.516 M solution is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
Tuesday, November 4, 2014 at 5:49pm

Chemistry pretty urgent!!!!!!!
Chemical bonding question! The partial Lewis structure that follows (Figure 1) is for a hydrocarbon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared electron pairs in the molecule. The carbon-carbon bonds are labeled 1...
Tuesday, November 4, 2014 at 4:58pm

Chemistry
Information: Original temp of HCl: 23.3C of NaOH: 23.8C Final temp of the mixture: 36.7C I am to find qH2O (assume 50 mL of solution and use average density of 1.02 g/mL) but I'm a bit lost. I also need to find /\H and /\H per mole of H+a and OH- ions reacting, but I ...
Tuesday, November 4, 2014 at 4:13pm

chemistry
A buffer with a pH of 3.93 contains 0.17 M of sodium benzoate and 0.32 M of benzoic acid. What is the concentration of [H ] in the solution after the addition of 0.054 mol of HCl to a final volume of 1.5 L?
Tuesday, November 4, 2014 at 1:36pm

Chemistry
How do we use 2 indicators to confirm the pH of a solution?
Tuesday, November 4, 2014 at 12:59pm

chemistry
In a titration, NaOH was added to a burette. The initial reading was 1.2 ml. At the end of the titration, the final reading was 24.8 ml. What was the volume of NaOH that was added?
Tuesday, November 4, 2014 at 12:37pm

Chemistry
How many mL of 0.122 M Na2CO3 would be needed to precipitate all of the copper ions in 23.7 mL of 0.167 M CuSO4? How many grams of CuCO3 could be recovered?
Tuesday, November 4, 2014 at 12:05pm

chemistry
The pH difference across the membrane of a glass electrode is 2.49. How much voltage is generated by the pH gradient at: 25C? 37C?
Tuesday, November 4, 2014 at 1:59am

organic chemistry laboratory
hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you. 1. Why is it important to have clean test tubes before running a test? Before which tests should acetone not be used to clean the test tubes? Due to ...
Tuesday, November 4, 2014 at 12:44am

chemistry
We only can make ozone layer by adding 3 oxygen atoms or we cannot
Tuesday, November 4, 2014 at 12:05am

chemistry
Propose methods for protecting the sodium hydroxide solution in the bottle and the buret from exposure to carbon dioxide in the air.
Monday, November 3, 2014 at 11:49pm

Chemistry Lab
If 3.5 mL of distilled water is added to 1.5mL of a 0.150 M solution of CoCl2, what is the concentration of the resulting solution? M1V1=M2V2 M1= 0.150 V1= 1.5mL M2= 3.5?
Monday, November 3, 2014 at 11:37pm

chemistry
What is w when 3.37 kg of H2O(l), initially at 25.0oC, is converted into water vapour at 111oC against a constant external pressure of 1.00 atm? Assume that the vapour behaves ideally and that the density of liquid water is 1.00 g/mL. (Remember to include a "+" or &...
Monday, November 3, 2014 at 11:35pm

chemistry
The enthalpy change for the reaction below at 25oC is -2,252 kJ (per mole of C11H24). What is the internal energy change for the reaction at 25oC? 11 CO(g) + 23 H2(g) --> C11H24(l) + 11 H2O(l)
Monday, November 3, 2014 at 11:18pm

Chemistry
Calculate the volume of 1.00 M acetic acid solution and mass of sodium acetate needed to make 250 mL of a 0.450 M acetic acid/acetate buffer solution with a pH of 4.00. (The pKa is 4.74 for acetic acid) *Please explain it in detail, dont leave a step out! Thank You!
Monday, November 3, 2014 at 10:42pm

chemistry
Bringing the real world law into video games could hold various complications. The possible complications outweigh the penitence driven into the prosecuted youngsters for their time wrongdoing. Laws in the real world should be separate from the rules governing an individual&#...
Monday, November 3, 2014 at 10:19pm

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&...
Monday, November 3, 2014 at 10:13pm

chemistry
A 0.009298-mol sample of an organic compound was burned in oxygen in a bomb calorimeter. The temperature of the calorimeter increased from 23.7oC to 27.1oC. If the heat capacity of the calorimeter is 4.84 kJ (oC)-1, then what is the constant volume heat of combustion of this ...
Monday, November 3, 2014 at 9:19pm

Chemistry
Calculate the mass of sugar, C12H22O11, in 280.4 mL of a 1.49 M solution of sugar. (atomic weights: C = 12.01, H = 1.008, O = 16.00)
Monday, November 3, 2014 at 7:30pm

Chemistry
What volume (in milliliters) of 0.355 M aqueous ammonia, NH3, could be made from 19.9 mL of concentrated aqueous ammonia (15.0 M)? (atomic masses: N = 14.01, H = 1.008)
Monday, November 3, 2014 at 7:29pm

Chemistry
Household ammonia contains 0.85 g of NH3 in each 100. mL of solution. What is the molarity of the ammonia solution? (atomic masses: N = 14.01, H = 1.008)
Monday, November 3, 2014 at 7:28pm

Chemistry
What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
Monday, November 3, 2014 at 7:28pm

Chemistry
The ionic compund sometimes called yellow uranium is used to produce colored glazes for ceramics. It is 7.252% sodium, 75.084% uranium, and 17.664% oxygen a. What is the empirical formula for this compound? b. This compound has a molecular mass of 1268.06 g/mol, what is the ...
Monday, November 3, 2014 at 7:14pm

chemistry
50 mL of water at 48.9EC were mixed with 50 mL of water at 23.8EC in a calorimeter also at 23.8EC. The final temperature was 33.1EC. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the ...
Monday, November 3, 2014 at 6:33pm

chemistry
Calculate the volume of 1.00 M acetic acid solution and mass of sodium acetate needed to make 250 mL of a 0.450 M acetic acid/acetate buffer solution with a pH of 4.00. (The pKa is 4.74 for acetic acid).
Monday, November 3, 2014 at 6:11pm

chemistry
What type of reaction would CO2 + H2O --> H2CO3 be I think it would be synthesis reaction?
Monday, November 3, 2014 at 5:57pm

chemistry
Not sure how to complete this chemical reaction: Li + Fe(NO3)3 --->
Monday, November 3, 2014 at 5:44pm

chemistry
Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R. Li + H2O ---> KCI + F2 ---> Au + HNO3 ----> CI2 + NaF ---> Li + Fe(NO3)3 --->
Monday, November 3, 2014 at 5:06pm

Chemistry
A concentration cell consists of two Sn/Sn2+ half-cells. The cell has a potential of 0.12V at 25 ∘C. What is the ratio of the Sn2+ concentrations in the two half-cells?
Monday, November 3, 2014 at 3:32pm

chemistry
How many Milliliters of 3.50 M HCl (aq)are required to react 5.75g of Zn(s)?
Monday, November 3, 2014 at 3:00pm

Chemistry
For a particular isomer of C8H18, the following reaction produces 5099.5 kJ of heat per mole of C8H18(g) consumed, under standard conditions. What is the standard enthalpy of formation of this isomer of C8H18(g)?
Monday, November 3, 2014 at 2:37pm

chemistry
What is the correct formula for calcium nitrate
Monday, November 3, 2014 at 1:04pm

chemistry
how many moles of no2 remain when 2.5 moles of n205 completely react
Monday, November 3, 2014 at 12:48pm

chemistry
ow many grams of aluminum chloride must decompose to produce 78.3 milliliters of aluminum metal, if the density of aluminum is 2.70 g/mL? Show all steps of your calculation as well as the final answer. (5 points) AlCl3 → Al + Cl2
Monday, November 3, 2014 at 12:29pm

chemistry
A chemist wants to make 5.50 L of a 0.300 M lithium phosphate solution. What mass of lithium phosphate must be used to make this solution?
Monday, November 3, 2014 at 9:16am

Chemistry
If the density of ethyl alcohol is 0.789 g/mL, how many quarts can be produced by the fermentation of 100.0 lb of sugar?
Monday, November 3, 2014 at 2:50am

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