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December 22, 2014

Search: sodium sulfate + strontium nitrate

Number of results: 4,655

sodium tetraborate
How is the mass of sodium tetraborate related to the amount of stretch in slime? I was doing some googling and I came across something that had to do with cross-linking but I didn't really understand it. Could someone explain why the slime gets more or less stretchy?
March 26, 2011 by Lena

Chemistry
Acid spills are often neutralized with sodium carbonate. For example Na2CO3 (s) + H2SO4 (aq)  Na2SO4 (aq) + CO2 (g) + H2O (l) An instructor dropped a 2.50 L bottle of 18.0 M H2SO4 on a cement floor. How much sodium carbonate would be required to neutralize it?
March 18, 2012 by Elisa

Chemistry
1) A double displacement reaction takes place when aqueous sodium carbonate reacts with aqueous tin (II) nitrate. You would expect one of the products of this reaction to be. Answer: Sn(CO3)2 2) For the reaction, 3 Cu + 8HNO3 --> 3Cu(NO3)2 + 2NO + 4H2O, if you could drop 12...
August 2, 2007 by anonymous

Thermodynamics
Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) ¨ Na2CO3(s) + CO2(g) + H2O(g) Given that ƒĸH‹ = 128.9 kJ/mol and ƒĸG‹ = 33.1 kJ/mol at 25‹C, above what minimum temperature will the reaction become spontaneous under standard state conditions? Report ...
May 2, 2011 by Nicole

chemistry
A student wanted to determine the density of an irregularly shaped piece of sodium metal. The student is warned not to use water displacement to find the volume of the piece of sodium. Explain the reason for the warning and offer an effective solution to the students' problems.
December 16, 2011 by Tay J.

chemistry
Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s). 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) Kp = 0.34 at 160 ēC If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium at 100 ēC, what will the total gas...
July 1, 2014 by Anonymous

College Chemistry
A buffer solution contains 0.120M acetic acid and 0.150M sodium acetate. a. How many moles of acetic acid and sodium acetate are present in 50.0 ml of solution? b. if we add 5.55 mL of 0.092M NaOH to the solution in part (a) how many moles of acetic acid , sodium acetate, and ...
November 10, 2010 by Elizabeth

chemistry
I have to write a balanced equation for the reaction of a solid lead being added to a solution of silver nitrate. Solid silver forms and the lead disappears as it goes into the solution as lead (ii) nitrate. I think it should be Pb + AgNO3 >>>> Ag + Pb(NO3)2 does ...
April 14, 2014 by jazz

chem 11
if we mix 25 g of sodium bromide with a large amount of potassium chloride, what will our theoretical yield of sodium chloride be? NaBr+KCL->NaCl+KBr how do you calculate theoretical yield?
July 21, 2010 by Anonymous

Another caffeine from tea question
Can anyone show me the reaction of sodium carbonate with water to produce bicarbonate and hydroxide as sodium carbonate dissolves? And if any, what is the reaction of tannins and caffeine with this solution? Thanks loads!
November 29, 2008 by Scott

Science
I need to find out if sucrose, sucrose solution, sodium chloride, sodium chloride solution, water, vinegar, and aluminum are electrolytes and what type of bond they are but I don't know where to look.
December 20, 2009 by Anonymous

Chemistry
The solubility of sodium selenate is 84 g/100 g of water at 35 oC. If a solution is obtained by dissolving 92 g of sodium selenate in 200 g of water at 35 oC, What do you call this solution? (A) Diluted (B) Saturated (C) Unsaturated (D) supersaturated
June 6, 2012 by Yeneta

Chemitry
the average adult human male has a total blood volume of 5.0 L. if the concentration of sodium ion in this average individual is 0.135 M, what is the mass of sodium ion circulating in the blood
October 19, 2013 by Anbu

Chemistry
How many moles of sodium ions are there in 5.85g NaCl? So far all I have tried to do is 5.85/58.5=0.1 mol of NaCl but I don't understand how you find the number of moles of sodium ions only.
August 29, 2014 by Zara

chemistry
a bottle of copper(II)oxide has been contaminated with solid sodium chloride, how can the sodium chloride be removed? Copper oxide is totally insoluble in water. The NaCl could therefore be rinsed away. ok.
December 22, 2006 by holly

chemistry
write a balanced equation between sodium and water. if 1.2g of sodium reacted with water, calcul;ate the volume of gas produced at s.t.p. how many molecules of the gas are produced at s.t.p.
February 21, 2011 by danny boay

chemistry
How many Lister of Carbon Dioxide gas measured at STP can be produced by the decomposition of 15.0g of Sodium Bicarbonate to give Sodium Carbonate, water, and Carbon Dioxide gas?
May 24, 2011 by mel <3

Chemistry
A 2.7 M solution of phosphoric acid (H3PO4) is to be reacted with a 7.5 M solution of sodium hydroxide to make sodium phosphate and water. How many L of the H3PO4 solution will react with 0.662 L of the NaOH solution
April 25, 2012 by John

Chemistry
Can someone tell me if I am any where close or if I need to start over. When your acetic acid reacted with the sodium hydroxide, what are the two products that were formed? When acetic acid reacts with sodium hydroxide the two products that are formed are a water and a ...
February 17, 2008 by Lori

Chemistry
Explain how the calculated molarity of the potassium permanganate would be affected by each of the following experimental errors. In each case, you must also state if the calculated molarity is higher or lower than the actual morality. a) Some sodium oxalate was spilled after ...
December 1, 2011 by 4B

Chemistry
Explain how the calculated molarity of the potassium permanganate would be affected by each of the following experimental errors. In each case, you must also state if the calculated molarity is higher or lower than the actual morality. a) Some sodium oxalate was spilled after ...
December 1, 2011 by P102

chemistry
what is the experimental percent of sulfate in alum?
October 10, 2010 by kelly

Chemistry
Aluminum sulfate and calcium acetate = ?
March 29, 2012 by Alexis

Chemistry
How many moles of ammonium sulfate were released in 25.3 kg?
April 11, 2012 by sue

Chemistry
The solubility of compounds containing the carboxylic acid group can be increased by reaction with a) sulfuric acid b) nitric acid c) sodium hydroxide d) water e) benzoic acid Would it be sodium hydroxide since it is a base?
March 21, 2010 by Kristin

organic chemistry
Aqueous sodium bicabonate used to wash the crude n-butyl bromide. a) What was the purpose of this wash? Give equation. b)Why would it be undesirable to waash the crude halide with aqueous sodium hydroxide?
October 24, 2011 by Ivy

Chemistry
with regard to the reaction of sodium with chlorine (2 Na + Cl2 = 2 NaCl); if 1.0 mole of Cl2 is heated in the presence of 6.0 moles of sodium metal, how many moles of NaCl will be formed?
May 5, 2011 by Mal

chem
Aqueous sodium chloride and aqueous sulfurous acid are formed by the reaction of aqueous sodium sulfite and aqueous hydrochloric acid . write the balanced equation?
September 18, 2012 by nick

physics
What will the angle of refraction be for a ray of light passing from air into a sodium chloride crystal, if the angle of incidence is 60.0°? The index of refraction of sodium chloride is 1.53.
October 17, 2012 by leonard

science
ferrous sulphate + sodium hydroxide forms ppt. ferrous hydroxide + sodium sulphate is left in the solution write a balanced chemical eqn.. for this..
June 11, 2013 by jane

Chemistry
Write and balance equations for the following reactions. A)Iron metal and Chlorine gas react to form solid iron(III) chloride. B)Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas. C)Solid magnesium reacts with aqueous silver nitrate to ...
February 28, 2010 by Jack

chemistry
What percent of the original sample of strontium-90 (half-life = 28.9 years) will remain after the following time periods?after 18 years? after 47.5 years? after 1008 years?
November 5, 2011 by Anonymous

Food Education
How is Sodium used in the body? I need to know this for some Food Tech reaserch. Thanks. Thank you for using the Jiskha Homework Help Forum. The body uses sodium to regulate blood pressure and blood volume. Sodium is also critical for the functioning of muscles and nerves...
November 19, 2006 by Paige

chem
what precautions should be observed when an aqueous sodium carbonate solution is used to extract an organic solution containing traces of acid? is it that aqueous sodium carbonate is extremely combustible, which can't be exposed to an open flame?
October 28, 2008 by Jason

chem
what precautions should be observed when an aqueous sodium carbonate solution is used to extract an organic solution containing traces of acid? is it that aqueous sodium carbonate is extremely combustible, which can't be exposed to an open flame?
October 28, 2008 by Jason

chemistry
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) Determine the mass of gold that can be extracted if 27.4 g sodium cyanide is used.
February 3, 2010 by r

chemistry
To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) Determine the mass of gold that can be extracted if 27.4 g sodium cyanide is used.
February 3, 2010 by r

chemistry
Question: When a pink aqueous solution of potassium permanganate, faintly acidified with dilute sulfuric acid was treated with 10% aq. hydrogen peroxide, the reaction took place with the evolution of gas bubbles, and the pink solution was turned colorless. Further chemical ...
May 5, 2011 by Shadow

Chemistry
I am learning the different types of chemical reactions synthesis, decomposition, single displacement, and double displacement I am also learning skeletal equations word equations and balancing the equations I know how to balance equations if I am given the formula in symbols ...
March 3, 2014 by Sam

CHEMISTRY
If 15g of Sodium Hydroxide are treated with sulphuric acid to produce sodium sulphate, how many grams of sulphuric acid are required. write the balance equation for this reaction and calculate the quantity of sulphuric acid.
April 4, 2011 by Anonymous

DR Bob one more
1. calcium carbonate < calcium oxide + carbon dioxide dr. Bob Hydrolic acide + sodium hydroxide < sodium chloride + water this cant be balanced already as assignment says we must balance each one
December 13, 2007 by sam

chemistry
Write the balanced equation of the reaction described below. Include the states (s, l, aq, g) for the reactants and products. When aqueous calcium chloride and sodium phosphate are mixed, solid calcium phosphate and acqueous sodium chloride are produced.
January 15, 2013 by thad

chemistry.
How many grams of sodium chloride are there in 55.00 Ml of a 1.90 M aqueous solution of sodium chloride? any idea. 2. What is the concentration of chloride ions in a 0.193 M solution of potassium chloride?..heeeeeeeeeeeelp.
November 15, 2009 by Cool boy.

Math
Search: a chemist is asked to make a 25% sodium chloride from 20 ml of a 20% sodium chloride solution. How much salt should she add to make it a 25% solution?
March 29, 2011 by Linda

MATH
a molecule of sodium carbonate contains 2 atoms of sodium to every 3 atoms of oxygen. could a compound containing 12 atoms of sodiumand 15 atoms of o2 be na carbonate explai
March 4, 2014 by AMY

Chemistry
A student weights 1.700 g of succinic acid and dissolves it in water in a 250.0 mL volumetric flask. A 25.00 mL sample of this solution is withdrawn and placed in a 125 mL Erlenmeyer flask, to which 5 drops of the acid-base indicator phenolphthalein is added. This solution is ...
October 26, 2014 by Mary

Chemistry
Could someone help me with these problems; A)If 5.97mL of a solution of NaCl contains 2.54g of sodium ion, what is the molarity of the sodium chloride solution? -I know M=#moles solute/L but when I do this I get 7.28*10^-3 which is wrong, the answer should be 1.85*10^-2 B) ...
January 28, 2011 by Adam

chemistry help~~~~ Please!!!
Sodium-24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please!
April 14, 2014 by Kim

chem
why does the solubility of ytterbium sulfate decrease with temperature?
May 4, 2008 by Anonymous

chemistry
how do you get the percent of a solution that is 2.5 ml copper sulfate and 7.5 ml water?
December 15, 2009 by Emma

chemistry
How do i find the weight % of sulfate if I am given the mass?
October 13, 2011 by kim

Chemistry
Is the dissolution of calcium sulfate endothermic or exothermic? How do you know?
March 17, 2013 by Chris

Chemistry
How to separate and isolate the components of barium sulfate?
June 11, 2013 by Hope

AP Chemistry
Form 300 mL of 0.25 M Copper 2 sulfate pentahydrate
September 17, 2014 by Jon

chemistry
Need help with my pH calculations? 1) 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric flask and made to 250.0 mL. The Ka for HCO3 – is 4.7 x 10–11. a) What is the ...
April 4, 2014 by dan

chem.
Hydrogen Chloride and Sodium Carbonate react to produce Hydrogen Carbonate and Chloride Sodium how do i write that in net ionic form?
December 11, 2007 by michelle

chemistry
Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s). 2NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Kp = 0.23 at 100ēC If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium at 100ēC, what will the total gas pressure ...
July 10, 2012 by wael

chemistry
What mass in grams of sodium hydroxide is produced if 20.0 g of sodium metal reacts with excess water according to the chemical equation 2Na(s)+2H20(l)=2NaOH(aq)+H2(g)? Please show me step by step how to do this because I have 5 other questions like this one on a worksheet and...
April 17, 2008 by Chris

Chemistry
Hydrolysis of Salt: Using the universal indicator we had to determine the pH of sodium acetate, and the results i got was pH- 8.5 . Now i have to explain this with a equation to show hydrolysis. I don't know how to write it out but, Sodium is not hydrolyzed and acetate is ...
March 24, 2010 by Saira

chemistry
A stock solution's hypochlorite activity was determined as follows: . - 2.00g of liquid sodium hypochlorite (NaOCl) was weighed into a flask and diluted with 50mL deionized water.10mL of 10% sulfuric acid and 10mL of 10% potasssium iodide were added, followed by titration with...
August 4, 2010 by angela

Last Question Plz helppp:((im soo sleepy!!:(
1)The reaction between solid sodium and iron(III) oxide, Fe2O3(s), is one in a series of reactions that occurs when an automobile air bag inflates. 6Na(s) + Fe2O3(s) -> 3Na2o(s) + 2Fe(s) If 100.0 g of iron(III) oxide are used in this reaction, what mass of solid iron will ...
December 19, 2012 by Nikki

chem
Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up the resultant solution. The sodium bicarbonate reacts with sulfuric acid as follows. 2 NaHCO3(s) + H2SO4(aq) --> Na2SO4(aq) + 2 H2O(l) + 2 CO2(g) ...
December 11, 2010 by hannah

Chemistry-Experiment
I did an experiment where I had 5 ml of MgCl2, then 5 ml NH4 solution (NH4OH (aq)) was added and it was observed that a precipitate formed; cloudy solution. After I added 1g of NH4Cl(s), the solution clears up (transparent). 2nd experiment: There was 5ml Lead (II) Nitrate in a...
March 30, 2012 by Fresca

Chemistry
A 2.50 gram sample of bronze was dissolved in sulfuric acid. The copper in the sample reacted with sulfuric acid to form copper sulfate. Cu (s) +2 H2SO4 (aq) -> CuSO4 (aq) +2 H2O (l) The copper sulfate formed in this reaction was mixed with I to form copper iodide: CuSO4 (...
October 31, 2010 by Dave

Biology
Which of the following is not a terminal electron acceptor in anaerobic respirations? a)nitrite b)carbon dioxide c)hydrogen sulfide d)sulfate e)nitrate Question 2 Which of the following is not an end product of fermentation? a)pyruvate b)none of the answers are correct c)...
September 10, 2010 by Tommy

chem
The American Dental Association recommends that an adult female should consume 3.0mg of flouride per day to prevent tooth decay. If the flouride is consumed as sodium flouride (45.24% F)what amount of sodium flouride contains the recommended amount of flouride in mg?
September 20, 2008 by natash

orgenic chemistry
Aqueous sodium bicarbonate was used to wash the crude n-butyl bromide. What was the purpose of this wash? Give equations. Why would it be undesirable to wash the crude halide with aqueous sodium hydroxide?
December 1, 2009 by priyanka

chemistry
A precipitate of calcium phosphate is formed when aqueous solutions of sodium phosphate and excess calcium chloride are mixed. If 100.0 mL of 1.5 M sodium phosphate solution is the limiting reactant, how many grams of calcium phosphate can be expected?
September 3, 2010 by Ethan

chemistry
There are four main methods of making salts: Acid + Metal, Acid + insoluble base, Acid + alkali and solution of salt A + solution of salt B. a. a student wanted to make some sodium sulfate. i. which method would be best to use? ii. why? iii. which reactants would you use? iv. ...
April 6, 2008 by Chloe

Chemistry
A student dissolves 22.4 g of sodium phosphate to prepare a 2.98 L solution. Another student then dilutes this solution to 4.90 L. If sodium phosphate completely dissociates, determine the number of mols of each ion in the final solution.
December 1, 2014 by Alex

chemistry/science
Not sure if i posted this but Need help with my pH calculations? 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric flask and made to 250.0 mL. The Ka for HCO3 – is 4.7...
April 4, 2014 by dan

chemistry
ihave two solutions. in the first solution , 1.0 moles of sodium chloride is disslved to make 1.0 liters of solution . in the second one, 1.0 moles of sodium chlorine is added to 1.0 liters of water.is the molarity of each solution the same?
February 13, 2012 by wendy

Chemistry
Determine the percent composition by mass of ammonia sulfate.
February 19, 2009 by asdfjkl;

chemistry
How would you prepare 250.0 ml of a 0.6 M aluminum sulfate solution
March 2, 2009 by lyne

Science
What is formed when solid copper sulfate is mixed with water?
April 28, 2010 by rhon

chemistry
theoretical percent sulfate in AlK(SO4)2*H2O
October 11, 2010 by thomas richards

chemistry
what is the net ionic equation for tin + copper 2 sulfate?
April 23, 2011 by cee

chemistry
calculate the mass of sulfur in 6.0 g of Iron (III) sulfate
October 25, 2011 by payton

Chemistry
how many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 G CuSO4
May 21, 2012 by Jordan

chemistry
If i have .0030M BaSO4 how do I calculate the moles of sulfate?
October 10, 2012 by Allie

Chemisty
how many mole of calcium sulfate are in a 100mL of .86M solution?
November 26, 2012 by Riley

Chemistry
How many sulfate ions are there in 2.500 mL of 5.0 x 10-15 moles of Cr2(SO4)3?
September 22, 2013 by Zac

science
What is formed if solid copper sulfate is mixed with water
October 7, 2013 by cece

CHemistry
What is the concentration of Sulfate ion in a 0.5 M solution of Al2(SO4)3?
June 17, 2014 by Praphul

chemistry
How many atoms of oxygen are there in 5.00g of copper(II) sulfate pentahydrate?
November 4, 2014 by Bob

Chem 130
What is the percentage of water in copper (II) sulfate pentahydrate?
November 4, 2014 by michelle

math
One-half serving of soy sauce contains 389 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 4 servings of soy sauce? Round results to the nearest tenth of a gram.
December 20, 2009 by kate

chemistry
Sodium, Na+1 and chlorine Cl-1 often react together to form a molecule they do this because sodium gives an electron away chlorine picks up the electron chlorine gives an electron away sodium picks up the electron they are near each other on the periodic table they are far ...
October 11, 2010 by kaiya

chemistry
If 15.0 grams of Iron (III) oxide reacts with 25.0 grams of Strontium phosphate, how many grans of Iron (III) phosphate will be produced?
May 7, 2014 by Anonymous

SCI/241
Hello, I have to answer this question for my assignment. Compare and contrast how different electrolytes-sodium, potassium, and chloride-function in the body. This is what I have so far but I am not sure if this is the whole answer. The Electrolytes in your body are sodium and...
December 10, 2010 by Nikol

Chemistry
Experiment on Titration of Acids and Bases Suppose some deionized water was left in the buret before it was filled with the oxalic acid solution you were using as a primary standard. When you perform the standardization of sodium hydroxide in Part 3, how would the excess water...
December 7, 2010 by Jerome

chem
Question: The American Dental Association recommends that an adult female should consume 3.0mg of fluoride (F-) per day to prevent tooth decay. If the fluoride is consumed as sodium fluoride (45.24% F), what amount of sodium fluoride contains the recommended amount of fluoride...
October 1, 2007 by leo

science (chem)
I have a question. I'm forming Isopentyl acetate by the esterfication of acetic acid with isopentyl alcohol. The rxn is shifted so that the ester is produced by using excess acetic acid. In isolating the ester, the excess acetic acid and and isopentyl alcohol are removed by ...
February 27, 2008 by ~christina~

Chemistry
A chemist carries out a reaction between 10.0g of sodium and 20.0g chlorine. Which reactant element is present in excess? What quantity of sodium chloride is produced? What quantity of the elment in short supply would have been required to react with all of the element present...
September 13, 2010 by Austin

chemistry
I have found a balanced redox equation for removal of silver sulfide using sodium hydrogen carbonate in aluminium to say: 2Al + 3Ag2S + 6H2O --> 6Ag + 2Al2(OH)3 + 3H2S What happens to the Na and C component of the sodium hydrogen carbonate? And why is it not included on LHS...
November 26, 2010 by bob

GRAMMAR - MT
Clean up the following sentences by identifying and correcting misspellings and misused/incorrect words. QUESTION: 1. The patient's epistaxis was treated with silver nitrite after dried blood in the nasal secretions were removed. ANSWER: 1. The patient's epistaxis was treated ...
July 16, 2011 by Leslie-To:Writeacher

Chemistry
Calcium can also be precipitated out of the solution by adding sodium phosphate (Na3PO4) to form solid calcium phosphate. A.) write a net ionic equation for this process B.)calculate the mass of this precipitate you would generate from treating 1.000 L of your unknown sample ...
March 25, 2014 by Mai

Chemistry
I have the same question as anonymous person before me so I just copy the question from that person, here is the question please help the two of us! if you have a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the concentration of ...
January 9, 2013 by Kim

chemistry help plz
if 4.55 g of sodium sulphide and 15.0 g of bismuth nitrate are dissolved in separate beakers of water which are then poured togehter, what is the maximum mass of bismuth sulphide an insoulble compound that could precipitate? Which reactant was the limitting reactant? Na2S + Bi...
January 8, 2010 by bobsley plz conform

chemistry
1) All of the following are oxidation-reduction reactions except (a) 2Al(s) + Fe2O3(s) ¨A12O3(s) + 2Fe(s) (b) (NH4)2Cr2O7(s) ¨ Cr2O3(s) + N2(g) + H2O(1) (c) Cu(s) + 2H2SO4(aq) ¨ CuSO4(aq) + SO2(g) + 2H2O(1) (d) Hg(NO3)2 + 4KI ¨ K2HgI4(aq) + 2 KNO3(aq) (e) 2Na(s) + 2H2O(1...
April 10, 2010 by write2khin

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