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Questions and answers about chemical equations and formulas
How many grams of sodium hydroxide must be added to 32.7mL of .155M aqueous solution of Fe(NO3)2, in order to precipitate Fe(OH)2 completely
by thor311 on February 1st, 2012
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no answers
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in Chemical equations
Is cc and mL the same?
by Answerbag Staff on April 27th, 2010
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one answer
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in Chemical equations
200.0mL solution using 44.7g of KNO2. Take 11.9mL of this solution dilute to 150.0mL. How many grams of KNO2 are in a 33.2mL sample
by thor311 on February 1st, 2012
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no answers
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in Chemical equations
11.40mL of a 27.2 Wt% solution NaCl is diluted to a volume of 3.00L, what is the molar concentration? density of original solution 1.12g/mL
by thor311 on February 1st, 2012
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no answers
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in Chemical equations
How many moles of sodium ions are hydrated in solution if you have 17.2mLof 2.749M sodium phosphate?
by thor311 on February 1st, 2012
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no answers
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in Chemical equations
What is the generic combustion formula of alcohol?
For alkane it is:
CxHy + (x+y/4)O2 --> xCO2 + (y/2)H2O
How about Alcohols?
by burtlee on November 1st, 2011
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2 answers
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in Chemical equations
What's the chemical reaction equations of lemon juice being digested by human body? How's the acids neutralized? How's the alkaline form?
by shihyin1 on August 7th, 2011
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one answer
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in Chemical equations
Magnesium oxide forms from magnesium metal and oxygen gas.Write a word equation,an unbalanced formula equation Including all the notations.
by iLoveCollege.. on June 5th, 2011
| 2 people like this
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2 answers
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in Chemical equations
how many liters of O2 will form if 22.5 g H2O2 react?
by angelareeves1967 on April 5th, 2011
| 2 people like this
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one answer
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in Chemical equations
the density of H2O2 is 1.463g/mL and the density of O2 is 1.428g/L. How many liters of O2 can be made from 55.0 mL of H2O2?
by angelareeves1967 on April 5th, 2011
| 1 person likes this
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one answer
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in Chemical equations
Calculate the formula or molecular mass for each compound in the equation.
Rb + RbNO3 ---> Rb2O + N2
by kandii123 on April 5th, 2011
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2 answers
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in Chemical equations
I want to know the equilibrium constant for the following reaction
KI + I2 → KI3
by ملاك_ on March 26th, 2011
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one answer
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in Chemical equations
Will high concentration of TetrakisHydroxymethylPhosphonium Sulfate (THPS) (>500ppm), cause an acid attack to carbon steel?
by knight97072 on March 25th, 2011
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no answers
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in Chemical equations
Is common sense a chemical in the brain?
by Melissa_D9753 on March 9th, 2011
| 2 people like this
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5 answers
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in Chemical equations
in the reaction 3Cl2 + 6NaOH -> 5NaClO + 3H2O, how many moles of chlorine molecules are needed to react with 18.4 grams of NaOH?
by Chelss on March 9th, 2011
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one answer
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in Chemical equations
Thermochemistry question. Don't worry, not a calculation. Just need help writing it.
by kassie1990 on February 23rd, 2011
| 2 people like this
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one answer
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in Chemical equations
What are the products and the chemical equation when you react manganese dioxide with potassium iodide?
by flyr517 on February 14th, 2011
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one answer
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in Chemical equations
What is percent (by mass) of carbon in glucose, C6H12O6?
by ordazzle on February 14th, 2011
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one answer
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in Chemical equations
Chemical A + Chemical B -> Chemical C + Chemical D + Chemical A? Classify chemical A according to its role in the following reaction.
by AznStory on February 7th, 2011
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3 answers
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in Chemical equations
4FeCr2O7+8K2CO3+O2--> 2 Fe2O3 + 8 K2CrO4 + 8 CO2
(e) How many grams of K2CrO4 are formed per gram of K2CO3 used?
by lakers24 on January 11th, 2011
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one answer
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in Chemical equations
4FeCr2O7+8K2CO3+O2-->2Fe2O3+8K2CrO4+8CO2
(d)How many g of Fe2O3 will be produced from 300.0 g of FeCr2O7?
by lakers24 on January 11th, 2011
| 1 person likes this
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one answer
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in Chemical equations
4FeCr2O7+8K2CO3+O2-->2Fe2O3+8K2CrO4+8CO2
(c) If 300.0 g of FeCr2O7 react, how many g of O2 will be consumed?
by lakers24 on January 11th, 2011
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one answer
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in Chemical equations
4FeCr2O7+8K2CO3+O2 ---> 2Fe2O3+8K2CrO4+8CO2
(b) How many grams of O2 are required to produce 100.0 g of Fe2O3?
by lakers24 on January 11th, 2011
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one answer
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in Chemical equations
I have 250ug/mL stock solution
and i wish to produce 30nM and 300nM solutions from this stock.
How many mls do i require from the stock???
by pindipper on January 11th, 2011
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one answer
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in Chemical equations
Determine the standard heat of the following reaction at 25degrees C :
CaO(s) + SO2(g)--->CaSO4(s)
by sean24 on December 13th, 2010
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one answer
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in Chemical equations
Calculate the no. of moles of gas in reactants & products from C20H32O2(s)+27O2(g)=20CO2(g)+ 16H2O (liq)
by Ganesh_E on November 30th, 2010
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one answer
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in Chemical equations
Would Cu + 3HNO3 --> Cu(NO3)2 + H2O + NO2 be a single-replacement chemical reaction?
by Qaz12wsx on November 16th, 2010
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one answer
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in Chemical equations
An aluminum plate (c=0.9000J/gC) must be heated from 40C to a temperature of 135C, How many Joules of heat are required?
by haynay16 on September 26th, 2010
| 1 person likes this
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2 answers
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in Chemical equations
A 12kg iron skillet (c=0.4521J/gC) must be heated from room temperature (25C) to temperature of 150 C. How many Joules of heat are required.
by haynay16 on September 26th, 2010
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one answer
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in Chemical equations
name the gas formed when zinc metal reacts with dilute sulphuric acid
by maanya on August 20th, 2010
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3 answers
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in Chemical equations
Please help us get rid of a major cheater in Answers>Weather cat. “TJ” is his name. Over 30 accts. Help?
by Carolee789654 on July 30th, 2010
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no answers
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in Chemical equations
I have 400 mg/L chloride H2O. How many bbl 80,000 mg/L chloride H2O do I add to get 20,000 mg/L chloride H2O?
by swabyl2 on July 23rd, 2010
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no answers
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in Chemical equations
estimate the enthalpy of benzene at 398k and 1atm if the enthalpy of vaporization of benzene at 348k is 7990j/mole
by tafida on July 2nd, 2010
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no answers
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in Chemical equations
Write out ionic equations for the reactions of sodium hydroxide and potassium hydroxide with hydrochloric acid?
by chemking79 on June 17th, 2010
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no answers
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in Chemical equations
If 125 of heat is applied to a 60.0- piece of copper at 23.0, what will the final temperature be? The specific heat of copper is 0.0920 .
by mwheat on June 17th, 2010
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one answer
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in Chemical equations
given the equation 3CO(g)+Fe2O3(s)+3CO2(g)+24.7 kj, how much heat is released when 56.0 g of CO react?
by maira126 on June 1st, 2010
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no answers
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in Chemical equations
equilibrium: h2 + I2 =2hi, k=80 at 700C and 64 at 800.
for this equilibrium
(see description for options)
by ac245 on May 20th, 2010
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no answers
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in Chemical equations
at 25degrees celcius, kp = 6.9x10^5 for the reaction:nn2 + 3h2 = 2nh3ncalculate kc for this reaction at 25degrees celcius
by ac245 on May 20th, 2010
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no answers
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in Chemical equations
When a 50 g nugget of pure gold is heated from 35.0 degrees to 50.0 degrees, it absorbed 5200.0 J of energy. Find the specific heat of gold.
by Mary5789 on May 11th, 2010
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2 answers
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in Chemical equations
The Ea for the reaction 2NO2- 2NO + O2 is 113.8kj/mol. (a) if k= 0.75/M .sec at 600C, what is the value of k at 500C?
by yahoo.com2706 on May 4th, 2010
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one answer
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in Chemical equations
balance the reaction of aqueous sodium hydroxide with aqueous hydrochloric acid to produce water and aqueous sodium chloride
by Kataria1989 on May 2nd, 2010
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one answer
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in Chemical equations
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