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December 9, 2016

Search: sodium sulfate + strontium nitrate

Number of results: 5,561

science
Are the following data sets on chemical changes consistent with the law of conservation of mass? (a) A 15.0 g sample of sodium completely reacts with 19.6 g of chlorine to form 34.6 g of sodium chloride. the answer is yes, because 15 and 19.6 add up to 34.6 right?
September 9, 2010 by reid

chemistry
An ice-bath made with sodium chloride will be 9 ± 1 oC when the solution is about 23% sodium chloride by mass. The density of solid sodium chloride is about 2 g/cm3. What volume of solid NaCl would you add to 200 g water to make a 23% NaCl solution? ANY HELP WOULD BE AWESOME!...
February 13, 2014 by Jamie

Chemistry Gd 11
How many moles of chlorine gas would reacht with 10 moles of sodium to form sodium chloride?
November 9, 2010 by Tarkan

Chemistry
4.00 g dm^-3 of impure sodium carbonate is used in a titration. What could have caused the impurity in the sodium carbonate?
October 26, 2011 by ?

chem 4
How many grams of sodium chloride are needed to make 1 L of 0.9% (m/v) sodium chloride solution (“isotonic saline”).
November 22, 2012 by don

Chemistry
4.5 moles of oxygen reacting with enough sodium will form how many moles of sodium oxide? How do you solve?
March 2, 2016 by Mac

Chemistry
The strontium-90 isotope decays by the reaction below. It has a half-life of 28 yr. If the initial activity of this isotope was 168dpm, what would the activity be after 28.0 yr?
September 27, 2015 by Morgan

college chemistry
10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?
November 17, 2010 by tim

college chemistry
10.0 mL of 0.15M of sulfuric acid is titrated with 0.05M of sodium hydroxide. how many mL of sodium hydroxide solution are required to reach the equivalence point?
November 17, 2010 by tim

Chemistry
What mass in grams of a 0.500 m(molal) solution of sodium acetate, CH3CO2Na, in water would you use to obtain 0.200mol of sodium acetate?
February 2, 2014 by Jessica

Chemistry
A given solution contained potassium chloride, KCl, and hydrochloric acid. 25 cm3 of it needed 24.80 cm3 of 0.0986 M sodium hydroxide solution to neutralize the acid, and the neutral solution then required 23.55 cm3 of 0.2 M silver nitrate, AgNO3, solution to precipitate all ...
October 6, 2014 by Desirai

Chemistry
Consider a 1.50-g mixture of magnesium nitrate and magnesium chloride. After dissolving this mixture in water, 0.500M of silver nitrate is added dropwise until precipitate formation is complete. The mass of the white precipitate formed is 0.641 g. Calculate the mass percent of...
September 18, 2010 by John

CHEMISTRY
Which of the following solutions contain the greatest total ion concentration? a) one mole of potassium chloride dissolved in 1.0L of solution b)one mole of sodium phosphate dissolved in 1.0L of solution c)one mole of ammonium carbonate dissolved in 1.0L of solution d) one ...
March 13, 2011 by Jon

CHEMISTRY
Which of the following solutions contain the greatest total ion concentration? a) one mole of potassium chloride dissolved in 1.0L of solution b)one mole of sodium phosphate dissolved in 1.0L of solution c)one mole of ammonium carbonate dissolved in 1.0L of solution d) one ...
March 13, 2011 by Jon

chemistry
What is the sum of the coefficients (including “1”) of the balanced equation? __CaCO3 + __NaF __ CaF2 + __Na2CO3 4 5 6 7 8 If you start with 20.0 grams CaCO3, how many moles of CaCO3 do you have? 20.0 2.00 .200 .0200 .0386 If you start with .500 moles of NaF, how many ...
February 12, 2008 by cal

chemistry
Barium Nitrate is a not very soluble nitrate. Calculate the Ksp (at 25 degrees) from the following ΔG's: Ba2+ = -561kj/mole NO3 1- = - 109kj/mole Ba(NO3)2 = - 797 kj/mole I did the first step and I ended up with dGrxn = -127 kj/mol. When I plugged it into the second ...
May 4, 2012 by Viki

Chemistry
1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron lead 2. The first electrochemical cell was invented by ____. Michael Faraday *Alessandro Volta James Maxwell Benjamin Franklin 3. Why can't a lead storage battery be recharged indefinitely? A ...
March 28, 2013 by Jack

chemistry Please who helps me stpe by step
2gm of mixture hydrated sodium carbonate na2c03 /OH20 and sodium bicarbonate was dissolved in water and made up to 250cc. 25cc of this solution was titrated, using methyl orange as indicator and 22.5cc of 0.087N hcl were required for neutralization. Calculate the percentage of...
June 21, 2014 by ken

chemistry
Sodium chloride is decomposed into the elements sodium and chlorine by means of electrical energy. How many grams of chlorine gas can be obtained from 2.50 mol NaCl?
May 4, 2010 by anna

science(chemistry)
why sodium carbonate against hydrochloric acid titration using phenolphthalein indicator does not go to completion but stops at the sodium hydrogen carbonate stage.
November 21, 2011 by yussif

Chemistry
It requires 37.0 mL of a sodium hydroxide soltution to neutralize 0.75 grams of phosphoric acid. Using a balanced equation, determine the concentration of the sodium hydroxide solution.
May 21, 2012 by Leah

chemistry
The directions state "weigh about 5 grams of sodium chloride". Give minimum and maximum amounts of sodium chloride that would satisfy these instructions.
February 11, 2014 by Rachel

chem
solution of 0.148 M sodium iodide for an experiment in lab, using a 500 mL volumetric flask. How much solid sodium iodide should you add
November 16, 2015 by Betty

Chemistry
What is antacid? Why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not? Thx~
April 10, 2009 by Anonymous

chemistry
how many grams of sodium chloride do you need to prepare 250 mL of a 5.00% sodium chloride solution?
October 24, 2010 by Anonymous

La Salle
How many grams of sodium chloride do you need to prepare 250 mL of a 5.00% (w/v) sodium chloride solution?
October 25, 2010 by Jackie

chemistry
How many grams of sodium chloride do you need to prepare 250 mL of a 5.00%(w/v) sodium chloride solution
March 10, 2011 by NeeNee

chemistry
what weight of sodium hydroxide(NaOH) is required to make 20ml of 5% (w/v) sodium hydroxide?
August 20, 2011 by 97896

Science
what mass of sodium carbonate is present in a 3000cc of a 1.2 solution? The density of the sodium carbonate is 1.5 g/ml.
September 20, 2011 by Shelly Perez

Chemistry
how many moles of sodium oxide are produced when 3.9 moles of of sodium combine with excess oxygen
January 29, 2013 by Chris

chemistry
Find volume (in ml) of 0.3 M solution of sodium chloride containing exactly 3.0g of sodium chloride.
March 10, 2015 by Allison

science
5% w/v aqueous sodium chloride from this i have to prepare 1.6% w/v aqueous sodium hydroxide solution
July 13, 2016 by prabhakar

Chemistry
Sodium chloride dissolves in water (solubility in water is 361g/1L), but copper (II) phosphate does not dissolve in water (insoluble). A. Describe in a stepwise fashion how the solid sodium chloride dissolves in the water to form a solution. (name the resulting interparticle ...
December 6, 2015 by Anonymous

science
what is the Half-life of strontium 90. Explain your work. Okay well I already know the answer is 28yrs but I just don't know how to explain it on how I got the answer... can you guys help me please! I need this done in 30 seconds..
January 8, 2015 by Channy-Boo

chemistry
If you begin with 0.345 moles of Calcium Nitrate,how many moles of Potassium Phosphate were needed? How many moles of Potassium Nitrate and Calcium Phosphate are produced?
February 15, 2012 by cory

science
when copper metal is added to silver nitrate in solution, silver metal and copper (II) nitrate are produced. what mass of silver is produced from 100.g Cu?
April 19, 2016 by Sandy

Chemistry. Check my answer please!
A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 salt is 1.577 g. Calculate the percent by mass of water in the hydrated calcium sulfate salt. ...
November 21, 2008 by Sarah

Chem
Is sodium benzoate soluble in HCl? I put yes What about NaOH? It's supposed to be created from a reaction with benzoic acid and NaOH What about NaHCO3? And aq. sodium benzoate plus HCl? And aq. sodium benzoate plus NaOH?
May 25, 2010 by Alex

chemistry
If 16.9 g sodium carbonate is obtained from the thermal decomposition of 75.0 g of sodium hydrogen carbonate according to the unbalanced equation, NaHCO3 ¨ Na2CO3 + H2O + CO2 What is the percent yield?
September 18, 2011 by kaci

chemistry
Calculate the residence time of sodium in millions of years if the total amount of sodium in the oceans is 1.5 x 10 to the 22 grams, and is supplied to the ocean at a rate of 2.2 x 10 to the 14 grams per year.
June 17, 2012 by Dewayne

chemistry
sodium metal dissolves im liquid mercury to form of NA(s) and Hg(l) are 0.97 g/ml and 13.6 g/ml respectively. a sodium amalgoum is made by dissolving 10 ml Na (s) in 20.0 ml Hg (l). The final volume of solution is 21.0 ml. Calculate the molarity of Na in the solution.
January 31, 2013 by masharat

science
sodium is a metal and chlorine is a poisonous gas. Neither is safe to eat. However, when sodium and chlorine combine, it produces edible table salt. What can be concluded?
December 15, 2013 by Amatullah

CHEMISTRY
How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation? (Assume a density of 1.0 g/mL for water.)
June 9, 2014 by TITO

physical Science
Sodium azide fully decomposes at 300 degrees celcius at a volume of 3,5 cubic decometer,calculate the mass of sodium azide pellets used
July 27, 2016 by wiseman Syabonga Xaba

chemistry
thanks for any help with these translations into scientific notation: 1. magnesium ribbion is dropped into an aqueous solution of hydrochloric acid 2. a solid peice of copper is burned in pure oxygen 3. zinc carbonate is strongly heated in a crucible 4. calcium chloride is ...
January 19, 2007 by key

Chemistry
Quantitative anaylsis of cl- ion is often performed by a titration with silver nitrate, using sodium chromate as an indicator. As standardized AgNo3 is addded, both white AgCl and red Ag2CrO4 precipitate, but so long as some cl- remains, the Ag2CrO4 dissovles as the mixgture ...
October 31, 2010 by MEG

chemistry
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.39 105 m/s, what energy was expended in removing the electron from the metal?
November 12, 2010 by Anonymous

pre calc
A 50 gram sample of radioactive strontium will decay to 32 grams in 18 years. a. Find an equation that will model how much of our sample M will remain after t years.
April 27, 2016 by andi

college chem
Two questions where I have to write a balanced net ionic equation. 1. Write a balanced net ionic equation for the reaction that occurs when aqueous solutions of sodium chromate and silver nitrate are mixed 2. Write a balanced net ionic equaion reaction for the acid-base ...
June 2, 2009 by kelly

Chemistry
I'm going crazy please help me out part 1 of 2 Determine the mass of anhydrous copper(II) sulfate that must be used to prepare 250 mL of 2.01 M CuSO4(aq). Which i found to be 80.204g part 2 of 2 Determine the mass of CuSO4.5H2O that must be used to prepare 250 mL of 2.01 M ...
September 5, 2011 by ninzyy

Chemistry
Using the following information, identify the strong electrolyte whose general formula is Mx(A)y * zH2O Ignore the effect of interionic attractions in the solution. a. A"-is a common oxyanion. When 30.0 mg of the anhydrous sodium salt containing this oxyanion (Na,,A, where n...
March 29, 2007 by Cynthia

Chem Help Please!
Compare the relative reaction rates of 1-bromobutane, 2-bromopropane, and 2-bromomethylpropane under SN1 reaction conditions. Silver nitrate will be used to provide nitrate ion as the nucleophile to produce alkyl nitrates as products. 1) I found the answer for this one. 2) You...
October 15, 2014 by Jesicca

Chemistry
I have no idea how to approach this problem. Given sodium hydroxide, sulfuric acid, sodium silicate and magnesium hydroxide, which has low solubility? Please help, I'm reviewing for a test.
December 17, 2009 by Jan

chemistry
which of the following was not one of the products when you titrated the vinegar solution with sodium hydroxide? HC2H3O2+NaOH===>NaC2H3O2+H2O a salt water sodium acetate acetic hydroxide
July 13, 2010 by Anonymous

Chemistry
A particular vinegar contains 4.0% CH3COOH by mass. It reacts with sodium carbonate to produce sodium acetate, carbon dioxide, and water. How many grams of carbon dioxide are produced by the reaction of 5.00 mL of this vinegar with an excess of sodium carbonate? The density of...
October 10, 2015 by Faith

Chemistry(Please help)
For an acetic acid-sodium acetate buffer to have a pH of 4.64, what molar ratio of CH3COOH to Na+ CH3COO– is needed? I know that the Ka value for acetic acid is 1.8e-5 and that I have to divide this value by the value of sodium acetate but I do not understand how you get the...
April 9, 2012 by Hannah

Math
Mary has an order to be given Atropine gr. 1/150 sc on call from the O.R. The O.R. has called for Mary, so you need to prepare her injection right away. The label states : Atropine 0.4 mg/ml. How many ml are you to administer?0.35 ml0.5 ml1 ml1.5 ml Maggie has Morphine sulfate...
October 27, 2008 by Jennifer

chemistry
Describe how to prepare a 1M solution of sodium hydroxide from concentrated sodium hydroxide (17.6 M)
February 8, 2010 by Jay

chem
I'm stuck on this one aswell... 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate at 25°C. Calculate the Pb2+ and IO3- concentrations when the mixture comes to equilibrium. At this temperature the Ksp for lead (II...
May 2, 2007 by Ilene

Inorganic chemistry
A 20.0 mL sample of 0.20 M sodium acetate is titrated with 0.11 M HCl)aq). What is pH after the addition of50.0 mL HCl(aq)? Kbof CH3CO2^- = 5.6x10^-10) So far I have the Initial amount of sodium acetate (0.02)(0.20) = .004 mol Amount of HCl added (0.05)(0.11) = 0.0055 mol ...
April 14, 2009 by Steve

Solubility of a Salt - Chemistry
a) How many grams of potassium nitrate (KNO_3) can be dissolved in 100 mL of water at 30°C, 60°C, and 70°C? b) How many grams of potassium nitrate should be added to 100 mL of water at 25°C to make a saturated solution? c) The solubility of potassium nitrate increases as ...
October 10, 2006 by J.M.

chemistrybuddy
hi, i am trying to develop a lab where i find the solubility of Sodium acetate. I was wondering in i was in the right path. We are given these three compounds: Acetic acid aka vinegar baking soda (sodium hydrogen carbonate) 0.100mol/l Naoh(aq) 0.100/l HCL(aq) So we are not ...
June 2, 2008 by chemistrybuddy

chemistry
hi, i am trying to develop a lab where i find the solubility of Sodium acetate. I was wondering in i was in the right path. We are given these three compounds: Acetic acid aka vinegar baking soda (sodium hydrogen carbonate) 0.100mol/l Naoh(aq) 0.100/l HCL(aq) So we are not ...
June 2, 2008 by chemistrybuddy

chemistry
What is the freezing pint of 0.0091 m aqueous sodium phosphate, Na3PO4? Assume that sodium phosphate is a strong electrolyte and it functions ideally in solution. (express your answer in degrees Celsius)
September 14, 2010 by shawn

chem
I have no idea where to start with this one... Calculate the concentration (M) of sodium ions in a solution made by diluting 40.0ml of a 0.474m solution of sodium sulfide to a total volume of 300ml
March 8, 2015 by Ann

Chemistry
84cubic centimeters of hydrogen chloride gas measured at s.t.p is dissolved in water and titrated with 0.15M sodium hydroxide.What volume of sodium hydroxide solution is required for complete neutralization?
September 23, 2016 by Doris

science
In an experiment to determine the solubility of lead chloride (PbCl2), 5.6g of (NH4)2SO4 was added to a 250ml solution containing an unknown amount of dissolved lead chloride (PbCl2) resulting in the formation of Lead sulfate precipitate. The mass of the lead sulfate ...
July 27, 2014 by nelo

Chemistry
We can precipitate out solid lead(II) iodide from an aqueous lead(II) nitrate solution by adding potassium iodide. If we have 500. mL of 0.632 M lead(II) nitrate solution and add excess potassium iodide, how much solid lead(II) iodide will form (in grams)? 2 KI(aq) + Pb(NO3)2(...
May 10, 2016 by Kierstin

Chemistry
Calculate the mass of sodium chloride (NaCl) produced when 5.50 moles of solid sodium reacts in excess chlorine gas. (Hint: Start by writing a balanced chemical equation) Please help me understand HOW to solve this problem.
May 27, 2009 by Ryan

chemistry
suppose 5.00g of sodium carbonate reacts completely with excess of hydrochloric acid. Show how to calculate the mass (g) of sodium chloride that would be formed. Na2CO3 + 2HCl = 2NaCl + CO2 + H2O What is the limiting reagent?
July 21, 2011 by stephanie

Bioelectricity
Na equil-v: Only sodium may cross a membrane separating two compartments. At a temperature of 28∘C, the concentrations of sodium ions are: intracellular: 100 extracellular: 485 What is the equilibrium potential? Give a numeric answer within 1%, in mV.
February 19, 2013 by B

Chemistry
Solutions of sodium hypochlorite, NaClO are sold as bleach. They are prepared by the following reaction: 2NaOH + Cl2 --> NaCl + NaClO + H2O If you have 2.32 mol of NaOH and 2.74 mol of Cl2 ga available to react, answer the following questions Na: 23.0 amu Cl:35.5 amu O: 16....
May 1, 2015 by Sara

CHEMISTRY!!!! HELP
3.) Calculate the mass of oxygen gas that can be produced in the decomposition of 5.55 g of silver oxide. This is what I did but is it right?... I need help with a few more btw to double check if i'm doing these right. So here is what I did: First: balance the equation 2 Ag2 O...
February 17, 2016 by Sam

Organic Chemistry
So we did a preparation of t-pentyl Chloride experiment in class the other day using t-pentyl alcohol, HCL, Aqueous sodium Bicarbonate, and calcium chloride as the drying agent. Little confused on a few of these questions Aqueous sodium bicarbonate was used to wash the crude t...
October 20, 2013 by BigBlue

chemistry
Choices: True,False. Select all that are True. The pH at the equivalence point of a weak base with a strong acid is expected to be less than 7 because of the presentce of the conjugated acid in the water. One cannot prepare a buffer from a strong acid and its conjugated base, ...
November 26, 2011 by paul

Chem
what does an -ite or -ate ending in a polyatomic ion mean? i'm thinking it mean Oxygen is in the formula, or is it Sulfur is in the formula? i'm not sure oxygen is in both ites and ates. The ate has more oxygen than ite. NaClO2 sodium chlorite NaClO3 sodium chlorate NaClO4 ...
January 9, 2007 by Dennis

chemistry
sodium azide, decomposes according to the following equation: 2NaN3 (s) -> 2Na (s) + 3N2(g) What mass of sodium azide is required to provide nitrogen needen to inflate a 80.0 L bag to a pressure to 1.35 atm at 25 c?
April 19, 2010 by eveline

Chemistry
When sodium Metal is dropped into water, all the metal reacts in the equation shown below. What mass of hydrogen is liberated from a 46.0 gram piece of sodium? 2Na(s)+2H2O(I) > 2NaOH(aq)+H2(g)
January 13, 2012 by Franklin

organic chemistry
when i add methyl salicylate to aqueous sodium hydroxide, immediately a white solid forms... that is sodium salicylate is it?? Since it hasn't been heating under reflux yet.
March 18, 2013 by Anonymous

chemistry
Atomic sodium is studied by photoelectron spectroscopy. What is the maximum wavelength of the incident radiation that will ionize the most weakly held electrons in sodium and scatter them so that their de Broglie wavelength measures 3.091e-10 m?
March 23, 2013 by gluck

Physiology
How many is moles are in 0.5L of a 3.0M solution of sodium chloride? Sodium chloride dissociates into 2 osmoles per mole. I'm having trouble setting this up. My teacher couldn't explain it clear enough and neither does the book.
September 8, 2015 by Karen

Qualitative analysis
Which ion reacts with aqueous sodium hydroxide to give a precipitate that dissolves in an excess of sodium hydroxide? A Ca2+ B Fe2+ C Fe3+ D Pb2+ Pls explain how to get the ans, thks!
November 17, 2016 by Cheezel

TO: DrBob222 science
1. Write the chemical formula for each of the following acids: a.) hydrocyanic acid b.) oxalic acid c.) chlorous acid d.) nitric acid 2. Write the acid name or chemical formula for each of the following: a.) HBr b.) sulfurous acid c.) HClO4 D.) phosphoric acid 3. First ...
March 20, 2014 by Anonymous

Separation of Racemate- Chemistry Lab
Compare the relative reaction rates of 1-bromobutane, 2-bromopropane, and 2-bromomethylpropane under SN1 reaction conditions. Silver nitrate will be used to provide nitrate ion as the nucleophile to produce alkyl nitrates as products. 1) I found the answer for this one. 2) You...
October 14, 2014 by Jesicca

chemistry
Predict the the product for the following reactions. zinc + hydrochloric acid sulfuric acid + sodium hydroxide sodium + hydrogen acetic acid + coppper
December 5, 2010 by Amanda

Chemistry
Chlorine gas + aqueous sodium bromide --> aqueous bromine + aqueous sodium chloride. I got: Cl2+2NaBr2(aq)-> Br2(aq)+2NaCl2(aq) Is this right ?
January 7, 2013 by John

Chemistry
How would you write skeleton equations for these reactions Lithium(s)+gold(III)chloride(aq)= Lithium chloride(aq)+gold(s) iron(s)+tin(IV)nitrate(aq)= Iron (III) nitrate(aq)+tin (s)
February 1, 2009 by Lauren

chemistry
Calculate the change in Gibb’s free energy when 1.63 moles of sodium metal react with excess chlorine gas to form sodium chloride . Assume standard conditions. The ΔG values can be found in your textbook. The units for the answer are kJ
February 7, 2015 by danny

Chem answer check
Does this look correct? Thx! Write the balanced equation for the reaction between solid copper and silver nitrate, that produces solid silver and copper(II) nitrate in solution. Include your experimentally determined mole ratios for the copper and silver atoms as coefficients...
February 15, 2010 by Kelsey

science
dr. halite combined sodium metal with chlorine gas to make sodium chlorine (table salt). The chemical reaction used up all of the metal and sll of the gas. If dr halite made 116 g of table salt and started with 68 g of chlorine gas, then how many grams of sodium metal did he ...
April 7, 2013 by artie

Chemistry
Explain how you would obtain solid sodium carbonate from a mixture of lead carbonate and sodium carbonate powder
August 12, 2015 by Faith

Chem
Calculate ΔG at 25°C for the precipitation of lead(II) chloride from mixing 100. mL of 0.025 M lead(II) nitrate solution with 100. mL of 0.15 M sodium chloride solution. The ΔG° for the reaction at 25°C = −27.36 kJ/mol. (Hint: write out reaction equation...
February 23, 2014 by Anonymous

Chemistry
Propose a method for determining the specific heat, Cp, for a metal like sodium which reacts with water. Allow the sodium to equilibrate in a metal calorimeter filled with inert gas. Measure the equilibrium temperature
March 21, 2007 by Mani

chemistry
how many grams of sodium are used to prepare 50 boxes of crackers? sodium per serving is 140mg, serving size is .50 oz for 6 crakers. i got 112g and the answer is suppose to be 110g and i cant figure out how to get 110 thank you
January 24, 2012 by Kelly

Chemistry
Why is my actual percent of sulfate in alum a lot less than my theoretical percent of sulfate in alum? Actual Percent SO4= 1.68% Theoretical Percent SO4= 40.5%
September 24, 2012 by John

chemistry
How many grams of Sodium chloride are in 53.2 g of solution that is 0.50% by mass sodium chloride?
December 4, 2011 by Aamnda

chemistry
how many moles of sodium chloride are in 937 mL of a 1.88 M solution of sodium chloride?
April 29, 2012 by Randy

chemistry
How many moles of sodium chloride are in 711 mL of a 2.01 M solution of sodium chloride
November 17, 2013 by Anonymous

Chemistry URGENT
I need help figuring out the calculations of my experiment. I'm sure I did something wrong cause I can not figure how to calculate the mass of sodium chloride. My measurements follow. 1. 250 mL beaker = 8.4 2. Mass of container = 0.4013 3. mass of container + sodium chloride...
April 26, 2014 by jazz

chem
"The percentage of sodium hydrogen carbonate, NaHCO3, in a powder for stomach upsets is found by titrating .275 M hydrochloric acid. if 15.5 mL of hydrochloric acid is required to react with .500 g of the sample, what is the percentage of sodium hydrogen carbonate in the ...
October 19, 2006 by Dan

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