Tuesday
September 1, 2015

Homework Help: Science: Chemistry

Recent Homework Questions About Chemistry

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 by alexis

Chemistry
Name three properties of metal for which metallic bonds are responsible
Wednesday, March 4, 2015 by Kris

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 by Caroline

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 by Anonymous

Chemistry
Calculate the pH of a buffer that is 0.130M in NaHCO3 and 0.295M in Na2CO3
Wednesday, March 4, 2015 by Michael

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 by Alessia

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 by Marie

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 by Ana

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 by Shannon

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 by Dan

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 by Jennie

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 by Natalie

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 by Dan

chemistry
What is the equation that represents the reaction of esterification of crystal violet? Thanks
Wednesday, March 4, 2015 by irma

Chemistry
Calculate the pOH of a 0.410 M Ba(OH) solution.
Wednesday, March 4, 2015 by Anonymous

Chemistry
what is the PH of a solution of .1 M NAN3 that disassociates into HN3
Wednesday, March 4, 2015 by Molly

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 by Gia

chemistry
how many grams of CuSO4.5H2O is needed to prepare 0.01 M solution?
Wednesday, March 4, 2015 by Anonymous

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 by Anonymous

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 by Jennie

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 by Max

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 by Help?

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 by Hi

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 by Fiona

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 by Jennie

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 by Jennie

chemistry
when the nuclear charge increases, does the electron;s attraction to the nucleus get stronger or weaker ?
Tuesday, March 3, 2015 by lan

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 by Ethan

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 by Ciaria

Chemistry
Write the formula for iron (III) sulfate. My answer is Fe2(SO4)3
Tuesday, March 3, 2015 by Ciaria

chemistry
Complete and balance this reaction: sulfuric acid reacts with barium chloride
Tuesday, March 3, 2015 by Ciaria

Chemistry
If an element has 12 protons and 17 neutrons, how many electrons must it have?
Tuesday, March 3, 2015 by Ciaria

Chemistry
Why are the atomic masses of elements usually decimal numbers?
Tuesday, March 3, 2015 by Ciaria

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 by Jennie

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 by Ciaria

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 by Ethan

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 by Ciaria

chemistry
Why do compounds with strong intermolecular attractive forces have higher boiling points than compounds with weak intermolecular attractive forces?
Tuesday, March 3, 2015 by Ciaria

chemistry
What does ammonium Iodide equation look like dissolved in water?
Tuesday, March 3, 2015 by tia

Chemistry
Would you expect H2O or H2S to be more volatile at the same temperature and pressure? Why?
Tuesday, March 3, 2015 by Derek S.

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 by Jennie

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 by Ciaria

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 by Leo

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 by Ciaria

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 by Anonymous

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 by Johnny

Chemistry
How many nonbonding electrons does phosphorus have? is it 5 valence electrons
Tuesday, March 3, 2015 by Ciaria

Chemistry
What is the percentage of nitrogen in N2O?
Tuesday, March 3, 2015 by Ciaria

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 by Brendon

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 by alastair

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 by Victoria

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 by Molly

chemistry help
When carbon dixode and carbon react the balanced equation is Co2+C--------------2Cq Calculate the mass of carbon monoxide formed from 4.4g of carbon dixode
Tuesday, March 3, 2015 by Victoria

Chemistry Help
I have no idea where to begin with this?? This class is moving so fast! Dr. Bob222 I made a 100 on my prelab!! and the online test was so fast I was going through my notes and I was scrambling to figure it out and look up stuff on the periodic table and all!! But I made an 80...
Tuesday, March 3, 2015 by Jennie

Chemistry Help
WHAT???? which of these are electrolytes?? CH3CH2OCH2OH PCl3 Na2CO3 O2
Tuesday, March 3, 2015 by Jennie

Chemistry help!! Fast
true or false??? The larger molecules dissolve best in a solvent with a low molecular weight.
Tuesday, March 3, 2015 by Jennie

Chemistry
Calculate the mass/volume percent of a NaCl solution in which 182g of NaCl is dissolved in enough water to give a total volume of 4.78L . Would I do 182/4780ml *100?
Tuesday, March 3, 2015 by Jennie

Chemistry
How many grams (of mass m) of glucose are in 355mL of a 5.50% (m/v) glucose solution? You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 2.49L of solution, what is the volume (V) in milliliters of methyl alcohol? A 6.00 % (m/v) NaCl solution ...
Tuesday, March 3, 2015 by Jennie

Chemistry Basics- Please Help!
Choose either homogeneous or heterogeneous. Tea: homogenous Concrete: heterogeneous Soda: homogeneous Soapy Water: homogeneous Salt Water: homogeneous Granite: heterogeneous Please help, and thanks lots :D
Tuesday, March 3, 2015 by Anonymous

Chemistry
an ideal system absorbed some amount of heat and gas expand and the piston move to 0.4 meter against than the atmospheric pressure. If the cross sectional area of the container is 0.6 meter2. What is the amount of heat absorbed?
Tuesday, March 3, 2015 by Muhammad

CHEMISTRY
Using a 0.20 M phosphate buffer with a pH of 6.5, you add 0.72 mL of 0.46 M NaOH to 58 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) I don't even know where to begin!! I just need a set up of the problem - without ...
Tuesday, March 3, 2015 by Mack

Chemistry
calculate the density of 50.0 g of gold that occupies a volume of 2.59 mL.
Tuesday, March 3, 2015 by Lee

Chemistry
What is the concentration of Na+ ions if 35.0 mL of 2.50 M NaOH is reacted with 47.0 mL of 1.50 M HCl? I did M=Moles/Volume Moles=M*V Moles=2.50M*0.035= 0.0875 Am I right? If I am right, I don't know what to do next. Please help
Tuesday, March 3, 2015 by annoymous

Chemistry
Consider two non-interacting Fermions (half-integer spin) confined in a “box” of length L. Construct the antisymmetric wave functions and compare the corresponding groundstate energies of two systems; one with particles of identical spin and the other with particles ...
Tuesday, March 3, 2015 by lolo

Chemistry Help
How many moles of hydrogen atoms are there in 178 mL of 0.20 M H2SO4? Write your answer in scientific notation. Please help
Tuesday, March 3, 2015 by annoymous

Chemistry Dr. Bob
Balanced Equation: 2PbS+ O2 --> 2PbO +2SO2 How many grams of oxygen are required to react with 0.124mole lead(II) sulfide? Ummmm.. I tried to convert it to grams? 0.124 mol * molar mass of PbS (239.3) = 29.67 g of PbS then tried to plug it into the equation.. 1/2 * 29.67/...
Tuesday, March 3, 2015 by Jennie

Chemistry
For the titration of 50.00mL of 0.1000 M ammonia with 0.1000 M HCl, calculate the pH (a) before the addition of any HCl solution (b) after 20.00mL of the acid has been added
Tuesday, March 3, 2015 by Anonymous

Chemistry
Ok, I'm trying my best here, I'm learning, and I'm thinking I'm on a roll, until I can't get the right answer again..... First.. the butane question Calculate the mass of Butane needed to produce 82.7g Carbon dioxide. 2C4H10 +13 O2--->10H2O +8CO2 Ratio ...
Monday, March 2, 2015 by Jennie

chemistry
1. You are given a mixture containing two compounds, A and B. Both compounds have a solubility of 1 g/ 100 mL of solvent at 20 °C and 16 g/ 100 mL of solvent at 100 °C. The sample is composed of 3.5 g of A and 10 g of B. At 100 °C the entire sample just dissolves ...
Monday, March 2, 2015 by Jon

college chemistry
We did not find any results for 'An automobile gasoline tank holds 23.0 gal when full. How manypounds of gasoline willit hold if the gasoline has a density of 0.737 g/ml?
Monday, March 2, 2015 by kristy

Chemistry
The dosage of technetium -99m for a lung scan is 20 uci/ kg of body weight. How many millicuries should be given to a 50.kg patient (1 mci=1000uci)
Monday, March 2, 2015 by Dee

Chemistry
If 16.5 grams of the base were used in the neutralization of *question 7*, how many grams of acid must have been used to neutralize the base? *neutralization of Na2CO3* ---------------- Would the answer be 16.5g of acid? I was thinking that the acid and base should be the same...
Monday, March 2, 2015 by Anonymous

Science // Chemistry
How many grams of KOH are needed to make 1.00L of a 1.3 molar (1.3 M) solution? ------------------ I am not sure how to start this question, my teacher wants us to use conversion factors and write it out but I don't get how I am supposed to start it.
Monday, March 2, 2015 by Anonymous

Chemistry
What concentration of of CN- is needed to produce the same POH as 3.5*10^-5M solution of BA(OH)2?
Monday, March 2, 2015 by Molly

Chemistry
What volume (mL) of .20 M HCL needs to be added to 1.23 L of .10 M acetic acid to reduce percent ionization to 1.00%?
Monday, March 2, 2015 by Molly

Chemistry
What concentration of of CN- is needed to produce the same POH as 3.5*10^-5M solution of BA(OH)2?
Monday, March 2, 2015 by Molly

Chemistry
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.
Monday, March 2, 2015 by Ciaria

Chemistry
Consider two non-interacting Fermions (half-integer spin) confined in a “box” of length L. Construct the antisymmetric wave functions and compare the corresponding groundstate energies of two systems; one with particles of identical spin and the other with particles ...
Monday, March 2, 2015 by lolo

Chemistry
Calculate the mass of water produced when 3.09g of butane reacts with excess oxygen. 2C4H10 + 13O2-->10H2O + 8CO2 Help.
Monday, March 2, 2015 by Jennie

Chemistry
Why a model of the atom is crucial to understanding chemistry and in explaining the behavior of matter?
Monday, March 2, 2015 by Ciaria

chemistry
I need to know how to figure this out, step by step... Don't assume I know anything.. Break it down for me like I'm a 5 year old... I'm really horrible at figuring out where to even begin... what steps to use.. etc.. Thank you!! CO2(g)+4H2(g)→CH4(g)+2H2O(g) ...
Monday, March 2, 2015 by Jennie

chemistry
Find the molar masses of the following compounds: 1. LiI 2. PbCO4 3. Mg(OH)2 4. (NH4)3PO4 Find the percent composition (percent by mass) of the given element in the following compounds: 1. Fluorine in AgF 2. Hydrogen in glucose (C6H12O6) 3. Oxygen in Fe2(SO4)3 PART II: ...
Monday, March 2, 2015 by Alex

chemistry
1. Many types of spectrophotometers produce graphs containing a base line with peaks. How are the peaks seen on the graphs produced by a spectrometer used in identifying substances? 2. If the analysis of a substance by using spectroscopy shows characteristic peaks, how does ...
Monday, March 2, 2015 by Morgan

chemistry
How many grams of carbon are in 2.42 moles of C2H6
Monday, March 2, 2015 by Anonymous

Chemistry
What is the magnitude of the orbital velocity of the earth when the radius of the earth's orbit around the sun is 150000000?
Sunday, March 1, 2015 by Flora

chemistry
You have 14.0mL of a 0.12M NaOH solution. How many moles of HCl will it take to neutralize this solution?
Sunday, March 1, 2015 by Savannah

Chemistry
Answer these questions about NaCl also known as table salt: 1. What is the name of the compound? 2.Are there any other names that it is known by? If yes, then please list them. 3.What is the chemical formula of the compound? Is it an ionic or covalent molecule? 4. How is it ...
Sunday, March 1, 2015 by Rea

Chemistry
The rate constant for the decomposition of gaseous azomethane, C2 H6 N2 (g) > N2 (g) + C2 H6 (g) Is 40.8 min-1 at 425OC. Find the number of moles azomethane and the number of moles of nitrogen 0.0500 minutes after 2.00 g of azomethane is introduced. Assume that the ...
Sunday, March 1, 2015 by Mahnoor

Chemistry Need Help
How many grams of baking soda, NaHCO3, are needed to react with 125 mL of stomach acid having an HCl concentration of 0.05984 M? The reaction is NaHCO3(aq) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l). Do I need to chenage mL to L first? I'm really stuck with this question...
Sunday, March 1, 2015 by christine

Chemistry
Calculate the heat of reaction (ΔHrxn) for the following reactions, using heats of formation (ΔHf). Show your work. Refer to a table of heats of formation in your textbook as needed. 5O2(g) + 4NH3(g) → 6H2O(g) + 4NO(g)
Sunday, March 1, 2015 by Morgan

chemistry
To interpret and compare heats of reaction (Hrxn), standard states must be used. What are the standard states for a gas, an aqueous solution, and a pure substance? Why are they important?
Sunday, March 1, 2015 by Morgan

chemistry
1. Outline how you would use a calorimeter to determine the enthalpy of fusion of ice. 2. Suppose the enthalpy of fusion of ice determined from your experiment is lower than the accepted value. List three possible causes of the difference in value. Explain how each cause ...
Sunday, March 1, 2015 by Morgan

chemistry
The equilibrium concentration of NOCl = {0.0610}, NO = [0.0151, and Cl= [0.0142, what is the value of the equilibrium constant? Don't really get how to figure this out..anyone know? Thanks!!
Sunday, March 1, 2015 by S

Chemistry
You have 23.0g of water initially at -46°C. How much energy in joules is required to heat the ice to 0°C? c ice = 2.1 J/g°C. I thought joules was calculated by grams*change in temperature*specific heat. The answer I get from 23*46*2.1 is 2221.8, but web assign says...
Sunday, March 1, 2015 by Harrison

Chemistry
How much milk at 10.00°C needs to be added to a small 150.0 ml cup of coffee at 95.00 °C to drop the temperature to 90.00°C? Assume coffee and milk have the same specific heat capacity as water: 4.186 J/g °C or 1 cal/ g °C, and they also have the same ...
Sunday, March 1, 2015 by Phil

chemistry
The standard enthalpy of formation at 298k for ccl4,h2o,co2,hcl are -22.5,-57.8,-94.1 and-22.1 kcal/mol.calculate ▲rH FOR reaction ccl4+2h2o→co2+HCL
Sunday, March 1, 2015 by rakesh dhakal

Chemistry
When 50.00 mL of an acid with a concentration of 0.214 M (for which pKa = 4.87) is titrated with 0.100 M NaOH, what is the pH at the equivalence point?
Sunday, March 1, 2015 by Anonymous

Chemistry
Use your balanced equation to calculate the volume of 0.12 M Na3PO4 to stoichiometrically react with the 3.0 mL of Co (NO3)2. Show your work.
Sunday, March 1, 2015 by Chem

chemistry
Given the following balanced chemical equation, if 15.4 g AgNO3 are reacted, how many moles of AgCl are produced? 2 AgNO3 + BaCl2 → 2 AgCl + Ba(NO3)2
Sunday, March 1, 2015 by anna

Chemistry combined gas law
Can someone tell me if I did this combined gas law problem correctly? What would happen to the volume of a container whose initial volume is 21.5 L at STP (standard pressure) and is introduced to conditions of 93.2 kPa and 333 K? Formula: P1 x V1 / T1 = P2 x V2 / T2 V2 = P1 x ...
Sunday, March 1, 2015 by Theresa Kwnt

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