prepare 250.0mL of a 0.500M solution of NaCl

29,183 results, page 14

chemistry

what volume of .1 M solution of NaOH is required to precipitate all of the nickel 2+ ions from 250 mL of a .273 M solution of nickel (II) nitrate?

chemistry

In this equation is Fe(OH)3 and NaCL a solid liquid gas or aqueous? FeCl3 (aq) + 3NaOH(aq)=Fe(OH)3+NaCl

chemistry

What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl?

chemistry

What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl

Physical chemistry

What is the percent by weight of nacl if 1.75gm of nacl is dissolved in 58.5gm of water.

Chemistry

I am having trouble answering this. please help! Q: Cereol is a newly discovered compound in corn flakes. A biologist suspects that it increases mental ability. She is making a solution to test on rats. First she makes a stock solution. She discovers that this is too ...

Chemistry

A solution of magnesium chloride, MgCl2, is prepared by dissolving 19.0g of MgCl2 in 250 mL OF water. a.) Calculate the weight percent of magnesium chloride in solution. b.)The denstiy of the above solution is 1.05 g/mL. Calculate the molarity of the magnesium chloride ...

chemistry

a 10.0mL vinegar sample was completely neutralized by 22.5mL 0.2M NaOH solution. calculate molarity and % of acetic acid in vinegar. please help

chemistry

how many grams of sodium carbonate are needed to prepare 0.250 L of an 0.100 M aqueous solution of sodium ions? well normally you go moles=grams/molar mass than M= moles/L but when looking for grams? what do you do........multiple .250 by .100 than divide by the molar mass of ...

Chemistry

What is the pH of a solution prepared by dissolving 1.23g of 2-nitrophenol (FM 139.11) in 0.250 L? Well so, i calculated the no.moles of 2-nitrophenol, and divided it by 0.250, to get the molarity which was 3.53E-2. Since the molar ratio of dissociation is 1:1, i assumed [H+] ...

chemistry

o prepare a 200 mL of aqueous stock solution X, you transferred 50 mL of a known concentration solution into a 200 mL volumetric flask. If you realize that the volumetric flask was contaminated with water droplets after you cleanly transferred the known concentration solution...

chemistry

A 31.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 27.1 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution?

chemistry

If you were to dissolve 14.00 grams of salicylic acid in enough water to make 400.00 mL of solution, what is the molarity of the final solution? i did M = moles/L so .1014 mol/.4000L = .2535 M is this correct?? The next part of the question is Now you take 50.00 mL of this ...

Chemistry

You have 250 mL of a 0.80 M solution of silver nitrate AgNO3 (169.87 g/mol) dissolved in water. How many grams of AgNO3 does the solution contain?

Chemistry

A 0.05 N solution of a salt occupying a volume between two platinum electrodes seprated by a distance of 1.72 cm an having an area of 4.5 cm2 has a resistance of 250 ohm. calculate equivalent conductance of a solution

chemistry

Consider the unbalanced equation: Na+Cl2 = NaCl. What mass of NaCl can be produced from 25.0 grams of Chlorine?

Chemistry

Which compound is most polar in nature? a) CO2 b) H2O c) F2 d) NaCl i think its NaCl. am i right ?

Science

According to the Lewis Acid/Base theory, what is the neutralization equation of Acid Nacl and Base AlCl3? NaCl+AlCl3----> (NaCl+AlCl3-----> Na+AlCl4 is incorrect)

science

According to the Lewis Acid/Base theory, what is the neutralization equation of Acid Nacl and Base AlCl3? NaCl+AlCl3----> (NaCl+AlCl3-----> Na+AlCl4 is incorrect)

Chemistry

Calculate the final concentration if 4.0 L of 1.5 M NaCl and 2.0 L of 3.0 M NaCl are mixed?

chemistry

Calculate the final concentration if 4.0 L of 1.5 M NaCl and 2.0 L of 3.0 M NaCl are mixed

Chemistry

How many mL of 5.00 M NaCl must be diluted to produce 2.40 L of 0.150 M NaCl?

Chemistry

If I have 1.00 mM NaCl and 4.32 mM NaCl, how do I calculate the ionic strengths of each? Thanks

Chemistry

Are these isotonic hypertonic or hypotonic. 1.5% w/v NaCl 5.0% w/v glucose 0.55%w/v NaCl And why??

Chem

As a part of a study to see whther just the chloride ion on NaCl accelerates the rusting of iron, a student decided to see whtjer iron rusted in a solution on Na2SO4. The solution was made by dissolving 4.550 g of Na2SO4 in water using 125.0 mL volumetric flask to adjust the ...

chemistry

1.)How many grams would you need of a sample known to be 99.81% AgN03 by mass? You are asked to prepare 150.0 mL of 3.15×10−2 M AgNO3. 2.) An aqueous solution is 6.40% methanol CH3OH by mass, with d = 0.988 g/mL} What is the molarity of CH3OHOH} in this solution?

chemistry

1.)How many grams would you need of a sample known to be 99.81% AgN03 by mass? You are asked to prepare 150.0 mL of 3.15×10−2 M AgNO3. 2.) An aqueous solution is 6.40% methanol CH3OH by mass, with d = 0.988 g/mL} What is the molarity of CH3OHOH} in this solution?

Chemistry

Aqueous ammonia is typically sold by chemical supply houses as the saturated solution, which has a concentration of 14.5mol/L. What volume of NH3 at STP is required to prepare 100. mL of concentrated ammonia solution?

Solution Preparation

I need help with Writing a Report Purpose: Preparing 0.2 M 250 ml NaOH solution? Equipments and Materials: Equipments: -Balance -Beaker(250ml) -Graduated cylinder Materials: -Pure water -NaOH Procedure: 1)Calculate the required amount of NaOH in gr. 2)Weight calculated amount ...

CHEMISTRY

IN A CERTAIN EXPERIEMT A SAMPLE OF HELIUM IN A VACUUM SYSTEM WAS COMPRESSED AT 25C FROM A VOLUME OF 6000.0ML TO A VOLUME OF 240.0ML WHERE ITS PRESSURE WAS FOUND TO BE 32.0 MM HG. WAHT IS THE ORIGINAL PRESSURE OF HELIUM? (P1V1)/T1 (P2V2)/T2 Change T to Kelvin.

Stoichiometry

Suppose you wanted to add just enough 0.40M calcium chloride solution to 75.0mL of 0.60M of sodium carbonate solution for all of the sodium carbonate and calcium chloride to react. B) what mass of calcium carbonate would be produced (assuming a 100% yield)

Chemistry - Equilibrium

Silver ion concentrations are needed for a solution. You have 0.050 M AgNO3, if you added 5.0mL of 12. M NH3 to 500.mL of this solution, how much silver ion in M will you have at equilibrium? [Kf for Ag(NH3)2+ is 1.5 x 10^7]

Algebra

Last question I hope...here is the problem This equation illustrates your remaining funds after paying for rent and utilities. How much money is left? Explain how you arrived at your answer. $38,250 + $80,000+ $22,250-0.25($80,000 + $38,250) = to get the answer would you add ...

ap chem

If 26.0mL of AgNO 3 is needed to precipitate all the Cl −ions in a 0.750-mg sample of KCl (forming AgCl), what is the molarity of the AgNO 3 solution

Chemistry

What volume of .300M HCL is required (a) to titrate 50.0 ml of 0.600 M LiOH? (B) to titrate 50.0ml of .600M Ca(OH)2 (balanced equation and solution for both please!)

chemistry

for the reaction, NaOH+HCl yield H20 + NaCl how is the rule that tells us Na goes with Cl and OH with H? Why does NaCl does not dissociate

Chemistry

At what temperature would 1.3 m NaCl freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 deg C/m.

chemistry

I tested the conductivity for two salts (NaCl and MgCl2) and I noticed that Nacl conducted more electricity. Why?

Math help please

A lab assistant wants to make five liters acid solution. If solutions of 40% and 18% are in stock, how many liters of each must be mixedto prepare the solution Amount in liters: 40%: 18%:

chemistry

A 100.0 mL portion of 0.250 M calium nitrate solution is mixed with 400.0 mL of .100M nitric acid solution. What is the final concentration of the nitrate ion?

Chemistry

Calculate the change in pH if 0.050 g of solid NaOH is added to 250 mL of a buffer solution that contains 0.80 M NaH2PO4 and 0.17M Na2HPO4. I found the pH of the buffer solution to be 6.54.

chem

determine the osmotic pressure of the solution at STP. (Assume these solutions behave ideally.) a)0.116 mol fraction glucose (C6H12O6) in water (Assume the density of the solution is 1.02 g/mL.) b)0.0948 mol fraction NaCl in water (Assume the density of the solution is 1.00 g/...

chemistry

How many grams of water should be added to 25.0 g of NaCl to produce a 0.450 m solution?

college

how do you calculate molar concentration for 1.50g NaCl in 100.00mL of solution?

Chemistry 2

Which solution will have the lowest pH ? A. .10 M HCN B. .10 M HNO3 C. .10 M NaCL D. .10 M H2CO3 E. .10 M NaOH

Chem 2

Which solution will have the lowest pH ? A. .10 M HCN B. .10 M HNO3 C. .10 M NaCL D. .10 M H2CO3 E. .10 M NaOH

chemistry

How much 2.5mM solution of NaCl can be made from 30g of this pure salt?

chemistry

which solution would have a high vapor pressure 6.0 M NaCl or 3.0 M LiCl?

chemistry

which solution would have a high vapor pressure 6.0 M NaCl or 3.0 M LiCl?

chemistry

caculate the mass of agcl precipitated when 0.1g of nacl and 0.1g of agno3 are mixed in solution

chemistry

which solution has the lower pH? a)0.1 M HCL or 0.1 M HC2H3O2? b)0.1 M NaOH or 0.1 M NH3? c)0.1 M Na2CO3 or 0.1 M NaCl?

chemisrty

what is the final concentration of a solution if 100mL of water is added to a 25mL of 5.0 M NaCl?

chemistry

Convert .25 L of a .025 M solution of NaCL starting with solid NaCI and water

gen chemistry

calculate the percent m/v concentration of a 5L solution containing 500g NaCl

Chemistry

How many milliliters water are needed to make a 0.171 M solution that contains 1.00 g of NaCl?

chemistry

a solution is made by dissolving 117 g of nacl in 585 g of h2o. what is its molarity

Chemistry

What is the osmotic pressure in atmospheres of 40.00% ( m/v) NaCl solution at a temperature of 0.0 degrees celcius

CHEMISTRY

Does it produce precipitate if 1.7 g of AgNO3 and 14.5 g of NaCl solvated in 200 mL water to get a solution in 25 oC ? thank you

Chemistry

what is the mass percent of a solution made by dissolving 35.5 g. of NaCl in 500 g. of water?

chem II

calculate the number of moles of solute present in 50.0g of an aqueous solution that is 1.5m NaCl.

chemistry

If 24.7 of 0.250 M NaOH solution are needed to neutralize 19.8 mL of H2SO4 solution, what is the molarity of the H2SO4?

chemistry

what is the new concentration of a NaOH solution that was made from 75 mL of a 5.5 M NaOH solution and diluted it to 250 mL?

mes

a solution of sugar in water is 5% by mass. how much sugar is present in 250 gm. of solution?

Chemistry

A 15.0 mL sample of 0.250 M H2SO4 is neutralized by 20.5 mL of KOH solution. What is the molarity of the KOH solution?

chemistry

You need to prepare 500.00 mL of a 0.25 M solution of nitric acid . Concentrated nitric acid comes from the chemical copmanies as a 15.8 M liquid. How much (in mL) of this 15.8 M solution will you need to dilute to 500.00 mL to get the desired 0.25 M solution?

chemistry

You need to prepare 500.00 mL of a 0.15 M solution of nitric acid . Concentrated nitric acid comes from the chemical copmanies as a 15.8 M liquid. How much (in mL) of this 15.8 M solution will you need to dilute to 500.00 mL to get the desired 0.15 M solution

science

The question is: Calculate the pH of a solution that results from 50.0 ml of 0.15mol/L HCOOH with 75.0ml of 0.13mol/L HCOONa. I know I need to use the henderson-hasselbalch equation with the pka being 3.74 but I'm not sure how to get the ratio to plug in.

chemistry

Calculate the following quantity: Volume in mL of 21.4 M cobalt(II) chloride solution that must be diluted with water to prepare 17 mL of an 51.5 M solution. Calculate to 0 decimal places and do not include units. Also, do NOT use scientific notation.

Chemistry

Suppose you tried to carry out a double replacement reaction by mixing equal voulumes of a solution that contains dissolved NAOH and a solution that contains dissolved NACL. WHat would you expect to happen when the two solutions were mixed? Expain?

chemistry

25.0 ml of 15% NH4NO3 solution is diluted to 300.0 ml. What is the concentration of the diluted solution? My Work: Total molar mass of NH4CO3 = 80.052 .15 x 80.052= 12.0078 25.0 ml (12.00 M) = 300.0 ml (c2) 300.19/300.0ml = The concentration is = 1.0M

Chemistry

Hydrogen peroxide solution, H2O2(aq), is available with a concentration of 1.667mol/L. When diluted to a concentration of 0.25mol/L, the solution is used as a disinfectant. What volume of water should be added to 100 mL of the concentrated hydrogen peroxide solution to prepare...

Chemistry

Consider the titration of 50 mL of 0.250 M HCl with 0.1250 M NaOH. Calculate the pH of the resulting solution after the following volumes of Na OH have been added. a) 0.00 mL b) 50.00 mL c) 99.90 mL d) 100.00 mL e) 100.1 mL The question is, I get, for example, 0.9 pH for "a." ...

Chem molarity

A beaker contains 100 grams of 1.20 M NaCl. If you transfer 50% of the solution to another beaker, what is the molarity of the solution remaining in the first beaker?

algebra

If you make 10monthly withdrawals instead how much can you withdraw each month? Inc. Expenses SEPTEMBER 1,250. -1,250 OCT. 3,200. -2,550 NOV. 4,250. -3,570 DEC 2,530. -2,840

chem II

starting with 15.0 ml of 0.370M of organic base pyridine C5H5N a titration is carried out using 0.100M HCL. how do i find the pH before titration, after adding 22.0mL of the acid , at equivalent point and after 41.0mL is of acid is added? where do i begin?

Chemistry!!!~!!

A solution of sodium chloride in water has a vapor pressure of 18.5 torr at 25°C. What is the mole fraction of NaCl in this solution? What would be the vapor pressure of this solution at 48°C? The vapor pressure of pure water is 23.8 torr at 25°C and 83.7 torr at 48°C. I'...

chemistry

in the reaction 2Na + Cl2 --> 2NaCl how many grams of NaCl are produced when 25 g. of sodium reacts completely to form NaCl?

chemistry

For the determination of the quantity of chloride in a physiological serum sample by the Volhard method, a sample of 25.00 ml was treated with 50.00 ml of 0.110 mol/L Silver nitrate solution and the excess of silver ions was titrated with 17.00 ml of a solution of potassium ...

chemistry

Convert 50 ppm NaCl to molarity of NaCl

Chemistry

What is the maximum volume of 30 M NaCl that can be prepared from 60 g NaCl(s)?

Chemistry

How many moles of NaCl are in 2.00mL of 1.00M NaCl?

Chemistry

It takes how many ml of 1.5 M NaCl to make 500 ml of .38 M NaCl?

Chemistry

What is the concentration of an HCl solution if 23.1 mL of HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 I cannot get the right answer (Macic)(23.1mL)=(0.101M)(35.0mL) Macid = .153

Chemistry

How can i prepare a solution of 12 g 50% (w/v) NaOH?

CHEMISTRY

hOW TO PREPARE HCL SOLUTION OF 5-7 pH.

chem

an aq. solution(NaCl) made by using 133g diluted to a total solution volume of 1 L.Calculate the molarity, molality & mass % of the solution(density of solution = 1.08g/mL) [ans: M=1.92M, m=2.0m, 10.4 %] i need the calculation work bcus my ans is contradict from the real ans...

IELTS

Too much emphasis is placed on testing these days. The need to prepare for tests and examinations is a restriction on teachers and also exerts unnecessary pressure on young learners. To what extent do you agree or disagree? 250 word

IELTS

Too much emphasis is placed on testing these days. The need to prepare for tests and examinations is a restriction on teachers and also exerts unnecessary pressure on young learners. To what extent do you agree or disagree? 250 word

math

You are a lab technician and must create 250 ml of a 17% salt solution. You have available three stock solutions. You have a one liter container of a 5% salt, a 500 ml container of a 28% salt solution, and a 400 ml container of a 40% salt solution. Show the work necessary to ...

Calc

You are a lab technician and must create 250 ml of a 17% salt solution. You have available three stock solutions. You have a one liter container of a 5% salt, a 500 ml container of a 28% salt solution, and a 400 ml container of a 40% salt solution. Show the work necessary to ...

Chemistry

Consider the titration of 20.0mL of 0.300M acetic acid, HAc, with 0.150M NaOH solution. Ka=1.75*10^-5 HAc + NaOH ---> NaAc + H2O What is the composition of the solution at the equivalence point of the titration? Give both the formula of the compound and its concentration. ...

chemistry

0.550g sample containing only nacl and kbr.it dissolved in water and titrated with a 0.0322M solution of agno3. complete titration of both halides was found to require 30.45ml of agno3 solution. calculate the weight percent of cl in the solid sample.

Chemistry

I have these two questions on my section review that I don't know how to answer. Can someone help me? Please and thank you. 3. Describe in your own words how to prepare 100 mL of a .85 M solution of sodium chloride. 4. If you dissolve 2.00 mol KI in 1.00 L of water, will you ...

Biochem

You prepare a 1L solution of 0.5 M imidazole. (pKa= 7.05). Calculate the pH of the solution after you add 0.1 moles of HCl. I need to create an ICE table. I also know I need to use the Henderson- Hasselbalch equation but I'm confused on what to plug in.

Chemistry

I had to perform an experiment for the freezing point depression in which we had to determine the freezing points of water as a pure solvent, sodium chloride, sucrose, and ethylene glycol. We had to work with a partner so I completed the experiment for water, NaCl, and the ...

Medical billing/coding

This 51 year old male is Type 1 insulin-dependent diabetic admitted for treatment of a grade III food ulcer which involved necrosis of the muscle on the left foot with gangrenous changes resulting from diabetic neuropathy, atherosclerosis, and chronic peripheral vascular ...

Chemistry

a 250.0 ml buffer solution is 0.250 M in acetic acid and. 250M in sodium acetate. what is the ph after addition of. 0050 mol of HCL? what is the ph after the addition of. 0050 mol of NaOH?

Chemistry

a 250.0 ml buffer solution is 0.250 M in acetic acid and. 250M in sodium acetate. what is the ph after addition of. 0050 mol of HCL? what is the ph after the addition of. 0050 mol of NaOH?

Chemistry

A solution is made by dissolving 3.5 moles of sodium chloride (NaCl) in 155 grams of water. If the molal boiling point constant for water (Kb) is 0.51 °C/m, what would be the boiling point of this solution?

chemistry

A solution was prepared using 1,00 liter of water, 59 g glucose, and 2,3 g NaCl. One liter of water weighs 1000 grams. The solution needs to be labeled in terms of % glucose and % sucrose.

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