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December 9, 2016

Homework Help: Science: Chemistry

Recent Homework Questions About Chemistry

CHEMISTRY
- If you have a properly adjusted hot flame, which is pale blue with three distinct cones, what is observed if the gas control valve is slightly closed? Explain. - If you have a properly adjusted hot flame, which is pale blue with three distinct cones, what is observed if the ...
Monday, September 14, 2015 by Armela

Organic Chemistry
I have already calculated the volume of ethyl alcohol need to dissolve 0.300 g of sulfanilamide at 78 degrees Celsius. I got 1.429 mL ethyl alcohol. My question is: how do I calculate how many grams of sulfanilamide will remain dissolved in the mother liquor (ethyl alcohol) ...
Monday, September 14, 2015 by Sasha

chemistry
Convert 15 ºF to degrees K. (Just type the number with correct sig figs, do worry about finding the degree symbol)
Monday, September 14, 2015 by Erica

chemistry
A tank holds 52.9 cm3 of water. What is the volume in in3? (2.54 cm=1 in, Remember significant figures, but this answer does not need units, since the answer must be in in3)
Monday, September 14, 2015 by Erica

chemistry
A student measure 9.43 mL of an unknown liquid in a graduated cylinder. The mass of the empty cylinder is 34.670 g, and the mass of the cylinder and liquid is 44.197 g. What is the density of the unknown liquid? (remember significant figures and units in your answer)
Monday, September 14, 2015 by Erica

chemistry
Convert 1.01 x 10-8 seconds to nanoseconds
Monday, September 14, 2015 by Erica

chemistry
How many inches are in 2.41 m? (2.54 cm = 1 inch, remember significant figures and units)
Monday, September 14, 2015 by Erica

Chemistry
The density of aluminum is 2.70 g/ml. What is the mass of a cube of Al that measures 2.20 cm on each side?(remember significant figures and to include the units of g in your answer, remember that 1 ml=1 cm3)
Monday, September 14, 2015 by Erica

Chemistry
How many grams of magnesium oxide could be formed from the reaction of .248g of magnesium metal?
Monday, September 14, 2015 by Dee

Chemistry
In one experiment, 7.62 g of Fe are allowed to react with 8.67 g of S. What is the limiting reagent, what is the mass of FeS formed, and how much excess reagent is left, respectively? I am not sure how to solve this. I started by doing (7.62 g Fe/55.85 g)=.137 g (8.67g S/32.07...
Monday, September 14, 2015 by Jorge

Chemistry
Calculate the amount of hydrochloric acid in 25cm3 of 0.100M HCl
Monday, September 14, 2015 by Jess

chemistry
a metal X that reacts with metal Y in a solution of Y but does not react with Z in a solution of Z means that ........
Monday, September 14, 2015 by Ms Joy

chemistry
What mass of protons would be required to just neutralize the charge of 1.1 g of electrons?
Monday, September 14, 2015 by jenny

algebra
A chemistry laboratory has supplies of two sulfuric acid solutions only. One is 10% concentrated and the other is 50% concentrated. How much of each solution should be mixed to make a 40 mL 25% sulfuric acid solution?
Monday, September 14, 2015 by Nica

chemistry
for the reaction H2+I2--2HI at a given temperature it was found that an equilibrium mixture in a 10mL container consisted of 8.0 mol of HI, 1.0 mol of H2 nd 1.0 mole of I2. what is the equilibrium constant at that temperature?
Monday, September 14, 2015 by kedi

Chemistry
How many kJ is released when 3.4 mol of water is frozen?
Monday, September 14, 2015 by Fatima

chemistry
Assume water boils at 100.0 C in Houston(near sea level) and at 90.0 C in Cripple Creek Colorado(near 9, 500 feet). If it takes 4.7 min to cook an egg in Cripple Creek and 4.4 min in Houston, what is Ea for this process? Enter your answer in scientific notation. Thanks.
Monday, September 14, 2015 by patrick

Chemistry
When 24.0 cal of heat is added to 18.5 g of aluminum at 19.0 ∘C, what is the final temperature of the aluminum?
Monday, September 14, 2015 by Christina

chemistry
The growth of Pseudomonas bacteria is modeled as a first-order process with K=0.035 min ^-1 at 37 degrees C. The initial Pseudomonas population density is 1.0 x 10^3 cells/L. Enter your answers in scientific notations. A) What is the population density after 4.0 h B) What is ...
Monday, September 14, 2015 by tatiana

chemistry
Assume water boils at 100.0 C in Houston(near sea level) and at 90.0 C in Cripple Creek Colorado(near 9, 500 feet). If it takes 4.7 min to cook an egg in Cripple Creek and 4.4 min in Houston, what is Ea for this process? Enter your answer in scientific notation. Thanks.
Monday, September 14, 2015 by patrick

chemistry
For the decomposition of gaseous dinitrogen pentoxide (shownbelow), 2 N2O5(g).....> 4NO2(g) + O2(g) the rate constant is k = 2.8 10-3 s-1 at 60°C. The initial concentration of N2O5 is 1.52 mol/L. (a) What is [N2O5] after 5.00 min? _____mol/L (b) What fraction of the ...
Sunday, September 13, 2015 by sabrina

Chemistry
Determine the Energy and n(i) for the spectral line at 121.6 nm (orange). Given: spectral line: 121.6 nm n(f) = 1 Find Energy and n(i)
Sunday, September 13, 2015 by Anonymous

chemistry
The rate constant of a reaction is 6.2 x 10^-3s-1 at 25 degrees C, and the activation energy is 33.6 KJ/mol.. What is k at 75 degrees C? Enter your answer in scientific notation.
Sunday, September 13, 2015 by ruby

Chemistry
In the reaction, PCl3 + Cl2 ------> PCl5 the concentration of the reactants at equilibrium were each determined to be 7.2 mol/L, and the product at 0.050 mol/L. Calculate the equilibrium constant (rounding to 2 significant figures and using scientific notation), and state ...
Sunday, September 13, 2015 by James

Chemistry
a 7.83g sample of hydrocyanic acid contains 0.290g and 4.06g of nitrogen. Find the mass of carbonin a sample of HCN with a mass of 3.37g.
Sunday, September 13, 2015 by Jordan

Chemistry
a 7.83g sample of hydrocyanic acid contains 0.290g and 4.06g of nitrogen. Find the mass of carbonin a sample of HCN with a mass of 3.37g.
Sunday, September 13, 2015 by Anonymous

chemistry
Le Chatelier's principle lab
Sunday, September 13, 2015 by Frank

Chemistry
Calculate the number of moles of carbon atoms present in 2.2 g of ethanol (C2H6O). For this question, I would just need to find the molar mass of carbon, right? Not the molar mass of all of ethanol? So it would just be 2.2 g/ 24.02 g/mol which would equal .092. It wouldn't...
Sunday, September 13, 2015 by Alex

Chemistry
Can I know the molarity of acid rain?
Sunday, September 13, 2015 by Jose

Chemistry (Check)
Q: Number of unpaired electrons in the nitrogen atom. A: 1s^2 2s^2 2p^6. 3 unpaired electrons in the p orbital Q: Number of 4d orbitals. A: 10 Q: Maximum number of electrons that can have n=3 and l=1. A: 1s^2 2s^2 2p^6 3s^2 3p^6. 2 electrons
Sunday, September 13, 2015 by Anonymous

Chemistry (Check)
Q: Identify all that is incorrect about the set of four quantum numbers and explain why. {-3, 2, 1, 1/2} A. -3 because there can't be a negative orbital. Q: Identify all that is incorrect about the set of four quantum numbers and explain why. { 3, 2, 1/2, 1/2} A. m(l) = 1/...
Sunday, September 13, 2015 by Anonymous

Chemistry (Check)
Q: Name the group that has a general electron configuration of ns^2 and provide an example of an atom with this general configuration. A: Alkaline Earth Metals and Beryllium [He] 2s^2 Q: Name the group that has a general electron configuration of ns^2np^6 and provide an ...
Sunday, September 13, 2015 by Anonymous

Chemistry
Determine the energy and n(i) for the spectral line at 121.6 nm (orange). Hint: R(H)=2.18x10^-18 J, c=3.0x10^8, and 1x10^9 nm - 1 m. Line, nm 121.6 E, J ___ n(f) 1 n(i) ___
Sunday, September 13, 2015 by Anonymous

Chemistry
What is the order of the reaction for the following reaction and for each reagent given? A + 2B + C --> productions Experiment / A / B / C / rate 1 / 0.002 / 0.15 / 0.132 / 0.0057 2 / 0.002 / 0.25 / 0.132 / 0.0158 3 / 0.003 / 0.15 / 0.132 / 0.0114 4 / 0.003 / 0.15 / 0.264...
Sunday, September 13, 2015 by Devin

Chemistry (Check)
The Lyman series. Of the four lines, 91.2nm, 97.2nm, 102.6 nm, and 121.6nm, which one has the A. Highest wavelength? _____ B. Highest energy? ______ C. Highest frequency?_(1)____ which equals__(2)____ My answers A. 91.2 B. 121.6 C. (1) 121.6 C. (2) energy
Sunday, September 13, 2015 by Anonymous

Physics
how are the fundamental laws and principles of physics related to the complexity that we see in nature? 2) How do the laws of physics apply to other sciences such ad biology, chemistry, and earth science? Give a specific example to show the connection - is it because there ...
Sunday, September 13, 2015 by anonymous

Chemistry
The equation for lowering the freezing point of a solvent is given in your manual. Given that the freezing point for the pure solvent is 79.4 °C , the molality is 0.1 m , and the freezing point depression constant is 6.9 °C/m , determine the freezing temperature for ...
Sunday, September 13, 2015 by Asia

chemistry
If a rectangular solid has a mass of 59.345 g and measures 10.05 cm by 5.20 cm by 1.25 cm, what is the density of the solid?
Saturday, September 12, 2015 by Dan

Chemistry Lab
Suppose that you used 0.75g of iron. What is the minimum volume of 1.5 M_ CuSO4 solution required Using eqn. (3-1)? and eqn. (3-2)? (3-1) Fe(s) + Cu^2+ (aq) ---- Fe^2 (aq)+ Cu (s) (3-2) 2Fe(s)+ 3Cu^2+(aq) --- 2Fe^3+ (aq) +3Cu (s)
Saturday, September 12, 2015 by Liza

Chemistry
Suppose that you used 0.75g of iron. What is the minimum volume of 1.5 M_ CuSO4 solution required Using eqn. (3-1)? and eqn. (3-2)?
Saturday, September 12, 2015 by Liza

Chemistry
If an aquarium tank holds 100 litres of water, calculate how much heat energy would be required to heat the tank from 18.2 Degrees(C) to 32 Degrees(C)
Friday, September 11, 2015 by Samuel

chemistry
Hi! Can you please check if my answers are correct? And, can you please tell me any other details you think are important to add. Also, the last two questions i have no clue how to answer. can you help? thanks so much! 3.A burning candle produces a luminous flame. What is the ...
Friday, September 11, 2015 by anna

chemistry
how many kilojoules of energy are required to bring 800.0g water from 20.0c to the boiling point. not sure what formula is? 4.184j
Friday, September 11, 2015 by melissa

Chemistry
To what decimal place should each answer be rounded? and how many significant figures does the rounded answer have? a) 9cm + 2.8 cm= 11.8cm (unrounded) b) 0.135 atm + 0.6 atm= 0.735 atm (unrounded) PLEASE HELP
Friday, September 11, 2015 by Albert

Chemistry
An empty gas cylinder of 40L is to be filled with air (ideal gas) to 5000psia and 25C. The gas cylinder is being filled by a pump that increases its flow by 20 moles per minutes after turned on. How long will it take the pump to fill the tank? My work: 1st- I converted units ...
Friday, September 11, 2015 by Peb015

chemistry
Given that a 0.160 M HCl(aq) solution costs $39.95 for 500 mL , and that KCl costs $10/ton, which analysis procedure is more cost-effective?
Friday, September 11, 2015 by madie

Chemistry
Follow up question: Explain why the reaction of aluminum metal with aqueous sulfuric acid solution has very nearly the same ΔH value as the reaction between aluminum metal and HCl? Consider the atomic level. All I have is that they have the same net ionic equations. The ...
Thursday, September 10, 2015 by Jim

Chemistry URGENT!
If the reaction of 0.500 grams of aluminum metal with excess aqueous HCl releases 9.72 kJ of heat, what is the ΔH value for the reaction? 2 Al(s) + 6 HCl(aq) → 2 AlCl3(aq) + 3 H2(g) All I have is: .500gAl*(1 mol Al/26.98gAl) Please and thank you so much!
Thursday, September 10, 2015 by Jim

Chemistry VERY URGENT PLEASE
What does the chemical formula, MgSO4 * 7H2O, become when the hydrated is heated? I got so far is MSO4 * 7H2O + Heat ---> MgSO4 + H + O
Thursday, September 10, 2015 by Finn

Chemistry
Which of these mixtures are heterogenous? - granite - brass - oil and water - salt and water can you please explain this to me?
Thursday, September 10, 2015 by Amy

Chemistry
0.00267m= how many nm? please show me how to set this up. thanks!
Thursday, September 10, 2015 by Amy

Chemistry
Hi! I am having some trouble with this question, can you please help me? Which of the following describe chemical properties? Check all that apply. - Iodine (a purple solid) becomes a purple gas. - Titanium is less dense that iron . - Water freezes at 0'C - Sugar burns in ...
Thursday, September 10, 2015 by Kris

Chemistry
Round each number to two significant figures: 233.356 0.002353 1.005 Can you please show me and explain how to do this? Im confused. thank you!!!
Thursday, September 10, 2015 by Alex

general chemistry
How many oxygen atoms are in 3.90 g of quartz?
Thursday, September 10, 2015 by Lyndsay

chemistry
3A+2B+2C > 4D+2E 1) what is the rate of this reaction in terms of change of concentration of reactant B? - is it '1/2' ? 2) what is the rate of this reaction in terms of change of concentration of product D? please help
Thursday, September 10, 2015 by Bobby

AP Chemistry
Please show me how to do this step by step I would appreciate it We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.520 grams. What is the ...
Thursday, September 10, 2015 by Hannah

Chemistry
please show me step by step how to do this so i can figure out the rest We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.520 grams. What ...
Wednesday, September 9, 2015 by Hannah

Chemistry
Hi! I really really need help in this question: what observation is expected when: 1. an acid (nitric acid, HNO3) is added to a solution containing carbonate or bicarbonate ions? 2. silver ion is added to a solution containing chloride (or bromide or iodide) ions? Please help ...
Wednesday, September 9, 2015 by Alex

Chemistry 2
36.) Suppose a chemistry student discoveres that a block of pure ice is left on her porch as she goes to school one day. What will be the percent composition of the pure ice block?
Wednesday, September 9, 2015 by Sam

chemistry
An experiment was conducted in which many pieces of data were collected. Considering all of the data, the limiting number of significant figures in the experiment was 3 significant figures. One of the values needed in these calculations was the barometric pressure. It was ...
Wednesday, September 9, 2015 by Jas

Chemistry- PLEASE HELP
Hi! I really really need help in this question: what observation is expected when: 1. an acid (nitric acid, HNO3) is added to a solution containing carbonate or bicarbonate ions? 2. silver ion is added to a solution containing chloride (or bromide or iodide) ions? Please help ...
Wednesday, September 9, 2015 by Alex

CHEMISTRY
Hello there! I was wondering if you could check my answers for me? I was having trouble and I finally understand. 1. Indicate the oxidation number of carbon and sulfur in the following compounds. A) CO= +2 C) Na2CO3= +4 E) CH4= -4 G) SO2= +4 I) Na2SO4= +6 K) Na2S303= +2 M) ...
Wednesday, September 9, 2015 by Isabella

Chemistry
How do I calculate the molar mass of the following: Na2SO4.10 H2O(s) CaSO4.2H2O(s)
Wednesday, September 9, 2015 by Anonymous

Chemistry
O5F2 Express your answer using two decimal places. I got 118, but when I rounded it to 120 and made it 1.2*10^1, it said I was wrong. What did I do wrong?
Wednesday, September 9, 2015 by Finn

Chemistry
Hi! I am totally stuck on this question: Explain why a cool flame is important to use in heating a solution to dryness. Can you please explain to me exactly why because I really do not understand. thank you!
Wednesday, September 9, 2015 by Abigail

Chemistry
Hello there! I was wondering if you could check my answers for me? I was having trouble and I finally understand. 1. Indicate the oxidation number of carbon and sulfur in the following compounds. A) CO= +2 C) Na2CO3= +4 E) CH4= -4 G) SO2= +4 I) Na2SO4= +6 K) Na2S303= +2 M) ...
Wednesday, September 9, 2015 by Isabella

Chemistry
One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is Fe2O3 + 3CO → 2Fe + 3CO2 Suppose that 1.59 × 103 kg of Fe is obtained from a 2.54 × 103 kg sample of Fe2O3. Assuming that the reaction goes to completion, ...
Wednesday, September 9, 2015 by Helga

Chemistry
A solution of ammonia and water contains 3.70×1025 water molecules and 7.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Wednesday, September 9, 2015 by Mel

Chemistry
You leave 255 grams of water outside at 21.0 C in the sun. After 30.0 minutes the temperature is 35.0 C. A) how many calories of energy was used by the sun to heat the water up? B) how many joules of energy is this? C) How many Joules / second of power did the sun provide? (...
Wednesday, September 9, 2015 by Vic

Chemistry
Hi guys! I just learned about significant figures today, and I have a question about them. My teacher gave us a problem where all values have what I think is four significant figures (like 44.56) except the value for temperature (which is 25.5C). Are temperature values ...
Wednesday, September 9, 2015 by Allie

Chemistry
The PH3 molecule is 1. linear 5. tetrahedral 2. bent 6. trigonal bipyramidal 3. planar triangular 7. octahedral 4. trigonal pyramidal 8. None of these Do you think the professor is asking for molecular shape or electron geometry. I know the electron geometry is tetra and the ...
Wednesday, September 9, 2015 by Jim

Chemistry
Which of the following molecules has a double bond? 1. NO3- 4. H2 2. C2H4 5. C12 3. SO2 6. None of the previous answers I got that three of these molecules have a double bond (NO3-, SO2, and C2H4), but the answer is one. I am thinking that maybe the professor wants C2H4 ...
Wednesday, September 9, 2015 by Jim

Chemistry
Which of the following is the strongest acid? 1. HNO2 4. H2SO3 2. H2CO3 5. HFO 3. HC1O3 6. H2O I'm really stuck, I know none of these are a "strong acid." I think the strongest might be HClO3 because Cl has the highest oxidation number and it has the most amount ...
Wednesday, September 9, 2015 by George

Chemistry
26.0246 g of sodium carbonate is dissolved in water and the solution volume adjusted to 250.0 ml in a volumetric flask. A 25.00 ml sample of an unknown hydrochloric acid solution required 32.06 ml of the sodium carbonate solution for complete reaction. What was the molarity of...
Wednesday, September 9, 2015 by Blaine

Chemistry
What would be the new temperature in Celsius of a sample of methane if 205 ml at 725 torr and 75.0 degrees C is allowed to change to 907 ml and 827 torr? I used P1V1/T1=P2V2/T2 Plugged in the numbers (205)(725)/(348.15K)=(907)(827)/T2 When I solved for T2 I got 1.757*10^3, and...
Wednesday, September 9, 2015 by Carl

chemistry
how is silver seperated from its soluble salt solution?
Wednesday, September 9, 2015 by raghib

chemistry
Determine the volume of 200.00g of carbon tetrachloride, for which specific gravity =1.60
Wednesday, September 9, 2015 by ram

chemistry
Calculate the freezing point of 0.5 g of biphenyl in 20.0 mL of cyclohexane. Cyclohexane Fp = 6.5 degrees C Kf 20.01
Wednesday, September 9, 2015 by Brit

CHEMISTRY
copper (2) nitrate will be used in a lab. What is one way copper (2) nitrate can be produced?
Tuesday, September 8, 2015 by Amy

chemistry
A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘C. How many grams of this gasoline would fill a 13.2 gal tank (1US gal=3.78L)?
Tuesday, September 8, 2015 by cody

Chemistry 142
suppose a runner completes a 10k (10km) road race in 42 minutes and 23 seconds. What is the average speed miles per hour?
Tuesday, September 8, 2015 by Renee

Chemistry
Iron is malleable (able to be hammered into sheets). Is this an intensive physical property, extensive physical property, or a chemical property? Why?
Tuesday, September 8, 2015 by Amy

Chemistry
Below are 2 word equations. For each, identify the type of equation and write a chemical equation with symbols for the word equation. (I have solved the equations but I am not sure what the question means by ``type of equation``) a) Potassium was discovered in 1807 by ...
Tuesday, September 8, 2015 by Anonymous

Chemistry
I'm doing a virtual lab in which I'm trying to separate tin, aluminum, and steel. Does the order in which I heat them at 300 degrees and observe their magnetism matter? The lab says the three are isolated when they are heated to 300 degrees and then placed under a ...
Tuesday, September 8, 2015 by Anonymous

Chemistry
I'm having trouble turning mM to mOsmoles. The equation goes like this: red blood cell are placed into a beaker filled with .5L of a 150mM NACL solution. NACL is non-penetrating solute and will not cross the red blood cell membrane. I have 150mM/0.5L * 2mOsM/100mM But ...
Tuesday, September 8, 2015 by Anna

Chemistry
Hello! I was working on my Chemistry HW about metric conversion. Can you please check to see if my answers are correct? I was having a hard time converting, and I think I finally figured it out. 1 microliter= 0.000001 liters 1 mL= 1,000 microliters 100mL= 0.1 liters 45 ...
Tuesday, September 8, 2015 by Isabella

Organic Chemistry
An unknown carboxylic acid has a boiling point of 100 c at 25 torr. Determine its boiling point at 760 torr. I'm given a list to identify an acid that it correlates with. I'm confused as to how I set this up.
Tuesday, September 8, 2015 by Yoshi

Chemistry
To prepare 500.00 mL of 0.300 M buffer with a pH of 7.4. NaH2PO4/Na2HPO4 How many grams of each should be added to the 500.00mL flask to create this buffer?
Tuesday, September 8, 2015 by Josh

Chemistry
Does aluminum dissolve in acidic and basic solutions?
Tuesday, September 8, 2015 by Anonymous

Chemistry
The distribution coefficient between ether and water for aspirin at room temperature is 3.5. What weight of aspirin would be extracted by a single extraction with 60 ml of water from a solution of 10 grams of aspirin in 100 ml of ether? Calculate the weight of aspirin which ...
Tuesday, September 8, 2015 by Spencer

chemistry
What is the dominant intermolecular force for propionic acid?
Tuesday, September 8, 2015 by nyasha

chemistry
what is molarity of h2so4 solution contaning 9.8g of h2so4 per 500ml?
Tuesday, September 8, 2015 by ahtasham

Organic Chemistry
Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40°C rather than 78°C (the boiling point of ethyl alcohol), how would this affect the percent recovery of pure ...
Tuesday, September 8, 2015 by Lee

Chemistry
A 2.20 g-sample of a compound containing carbon, hydrogen, and oxygen is burned and it produces 4.61 g CO2 and 0.94 g H2O. What is the empirical formula of this compound? (i.e., C2H4O) I found the mass of Carbon (4.61/44g)*(1 mol C/1 mol CO2)=.1047 I found the mass of Hydrogen...
Tuesday, September 8, 2015 by JORDAN

Chemistry 2
When 5.0g of CaCl2 was dissolved in 50 ml of water in a coffee cup calorimeter, the temperature of the solution rose from 22.3C to 30.5C. What is the qsoultion in J and what is the qrxn in J? What is the deltaH in kJ/mol of CaCl2 dissolved?
Tuesday, September 8, 2015 by nikk

Chemistry
A 2.20 g-sample of a compound containing carbon, hydrogen, and oxygen is burned and it produces 4.61 g CO2 and 0.94 g H2O. What is the empirical formula of this compound?
Monday, September 7, 2015 by JORDAN

Chemistry
ClO- + I- → IO- + Cl- 1) What are the names of these ions? is it "The hypochlorite ion reacts with iodide ion to form iodate ion with chloride ion" ? 2) Write the general rate law (using the letters k for the rate constant, and n and m for the reaction orders...
Monday, September 7, 2015 by Ken

chemistry
What is the mass of 0.0137 mol of aspirin?
Monday, September 7, 2015 by Amanda

Chemistry
Experiment questions: Experiment 1 results mass of beaker:116.944 g mass of dodecanoic:11.629 g hot water: 175 C warm water: 10 C Average Fressing pt of Dodecanoic = 42.7 Experiment 2 results: Unknown C solution mass: 2.091g Hot water: 175C warm water: 10C average FP of UK C ...
Monday, September 7, 2015 by Jessica

Chemistry
What volume of “wet” methane would have to be collected at 20.0 oC and 760.0 torr to be sure the sample contained 2.00 x 102 ml of dry methane at the same temperature and pressure ? My Work: All I have so far is that I use P1V1=P2V2 but I don't know the ...
Monday, September 7, 2015 by Joe

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