a density of 1.0 M solution of NaCL
29,738 results, page 67

chemistry
Bill prepared 5.00mL of borax solution at 59.2degrees C. He diluted the solution in an Erlenmeyer flask and titrated it to an endpoint with 27.05 mL of 0.500 M HCl. What is the saturation concentration of borate ions? I don't know what to do here. Does it involve a Ksp? Thanks 
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
A 5ml, 10ml, 15 ml, and 20ml Aliquot of 0.010 M sodium salicylate solution was diluted to 100 ml in four different 100ml volumetric flasks with the iron (III)Chloride solution. What are their concentrations. 
Chemistry
1. Chemists define pH as "the negative logarithm of the concentration of protons". In mathematical terms: pH =  log [H+] What is the pH of a solution whose [H+] is 0.0007 M? i got it as 7.0 i know it is wrong 2. What is the [H+] in a solution having a pOH of 6 ? isn't it ... 
chemistry
A solution is made by dissolving 7.084 g of aluminum nitrate, Al(NO3)3, in 123.0 g of water. What is the mass percentage of solute in this solution? this feels like a simple problem but i just don't know. divide the two? 
Chemistry
What is the final concentration of a solution if 15mL of a 2.4M solution was diluted to 100mL and this process was repeated two more times? Please help me how to work out the problem. I am not just looking for an answer. I really want to learn. 
chemistry
Which of the following statements is true concerning the titration of a weak base by a solution of hydrochloric acid? Question 9 options: At the equivalence point, the pH is 7. At the equivalence point, there is excess hydrochloric acid. At the equivalence point, the pH is ... 
Chemistry
Need Help with these two problems 1.One piece of copper jewelry at 111°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter (c of... 
math
A solution of alcohol and water is a% alcohol where a = 40. The solution is found to contain 32 milliliters of alcohol. How many milliliters total (both alcohol and water) are in the solution? 
chemistry 2
A saturated solution of Mg(OH)2 has a pH of 10.52. What is the Hydronium concentration? Whats the hydroxide concentration? Is this solution acidic,or basic? 
MAth answer check
One solution of kx^2 +6xk=0 is 3. Find the other solution I have the answer as 1/3 is this right? 
Chemistry
We are using a rotovap to evaporate Hexane from a solution. The temperature of the solution has to remain between 20 to 25 F. What the mm Hg has to be for Hexane? 
Math
How much water mest be added to 6 ounces of a 20% acid solution to obtain a 15% acid solution? 
algebra
How much water mest be added to 6 ounces of a 20% acid solution to obtain a 15% acid solution? 
math
How many liters of water must be added to 10L of a 95% solution of ammonia to make a solution that is a 50% ammonia? 
chemistry
I need a single reagent that I could use to distinguish between Pb(NO3)2 solution and Hg(NO3)2 solution. 
math
chemist has 6liter of 50% acid solution .how much water added to obtain 20% acid solution? 
chemistry
why is the osmotic pressure of 10 mole solution sodium chloride larger than that of sodium nitrate solution 
Algebra
Chemist has 60 g of solution that is 70% acid. How much water should be added to make a solution that is 40% acid? 
algebra
How many kilograms of water must be evaporated from 10kg of an 8% salt solution to produce a 25% salt solution 
algebra
How many kilograms of water must be evaporated from 10kg of an 8% salt solution to produce a 25% salt solution 
chemistry
how do you calculate the molaarity of a water solution of CaCl2, given that 5.04 L of the solution contains 612 g of CaCl2. 
Chemistry
To what volume should you dilute 124 mL of an 8.10 M CuCl2 solution so that 52.0 mL of the diluted solution contains 5.9 g CuCl2 
Chemistry
If 36.00 mL of KMnO4 solution are required to oxidize 25.00mL of 0.02932 M Na2C2O4 solution what is the concentration of KMnO4? 
science
You need 5.00 grams of AgNO3. You have a 1.25 molar solution. What volume of that solution contains 5.00 grams? 
Chemistry
If you mix 40.0 mL of a 0.389 M solution of K2CrO4 with 40.0 mL of a 0.389 M solution of AgNO3, what mass of solid forms? 
Chemistry
A solution is made up by dissolving 14.8 g Na2CO3 · 10 H2O in 110.5 g of water. What is the molality of Na2CO3 in this solution? 
chemistry
To what volume should you dilute 126 ml of an 7.90 M CuCl2 solution so that 49.5 ml of the diluted solution contains 5.9 g CuCl2? 
calculate ratios
Calculate the amount of drug in a ratio solution. How many micrograms are in 1ml of a 1:5000 solution? 
chemistry
to what volume should you dilute 0.100 L of a 15M NaOH solution to obtain a 1.0 M NaOH solution? 
pharmacy tech
Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water. 
pharmacy tech
Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water. 
Chemistry
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) If 2.00 g of Mg reacts completely with 50.0 mL of HCl solution, what is the molarity of the HCl solution? 
Chemistry
A solution contains 153g Na3PO4 and 415g H2O. What is the percentage concentration of Na3PO4 in this solution 
chemistry 105
to what volume should you dilute 20 mL of a 10 M H2SO4 solution to obtain a 0.130 M H2SO4 solution? 
chemistry 105
to what volume should you dilute 20 mL of a 10 M H2SO4 solution to obtain a 0.130 M H2SO4 solution? 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
Chemistry
Prepare a 0.025M solution of Glucose by diluting a 1M Glucose solution. What and how much did you mix together? 
Chemistry
Calculate the osmolarity of a 2.0 × 103 M Na3PO4 solution. Na3PO4 is an ionic compound and produces an electrolytic solution. 
chem
mix 35.50 mL of a 0.201 M solution of K2CrO4 with 35.50 mL of a 0.201 M solution of AgNO3, what mass of solid will form? 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
organic chemistry
If you are given a 6.75% (wt./vol.) NaOCl solution, how many grams of NaOCl are in 100 mL of the solution? how do you do this please??? 
math
The IV dose of mannitol is 1.5g/kg, administered as a 15% solution. How many mls of the solution should be administered to a 150lb patient? 
algebra
How much water should be added to 20oz of a 15% solution of alcohol to dilute it to s 10% alcohol solution? 
Chemistry
what mass of AgBr is formed when a solution containing 3.45 g of KBr is mixed with a solution containing 7.28 g AgNO3? 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
Algebra
A chemist has 40 ml of a solution that is 50% acid. How much water should be added to make a solution that is 10% acid? 
algebra
solve the equation(enter solution from smallest to largest. if there no solution enter none) 4x^2=15x+4 
science
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
chemistry
A student has a solution with a mole fraction of 0.20 of chloroform in carbon tetrachloride. What is the molality of chloroform in the solution? 
Chemistry
What is the molarity of a nitric acid solution if 43.33 mL of 0.10000 KOH solution is needed to neutralize 20.00 mL of the acid? 
science:Chemistry
Find the pH of a solution obtained by mixing 100cm3 of 01MHCl solution with 100cm3 of 0.2M NaOH 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
Chemistry
What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are dissolved to make a 520 mL solution? 
Chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution? 
chemistry
to what volume should you dilute 0.100L of a 15M NaOH solution to obtain a 1.0M NaOH solution 
Math
Simplify or solve as appropriate. Enter ns if there's no solution or all if the solution is all real numbers. 2  3(x + 5)) = 10 X = 7.6 7z + 6  2(z + 3) 5 * z 1/2x  5 = 3/4x + 7 X = 48 
Math
I have a graph which is graphed by the equation f(x) = x  4 and I'm asked to find the solution to the equation f(x) = 0. What would the solution be? 
chemistry
To what volume should you dilute 60mL of a 12.0M H2SO4 solution to obtain a 1.85M H2SO4 solution? 
chemistry lab
what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required 
chemistry
You want to prepare 500 ml of 1.0M acetic acid from a 17.4 M stock solution.What volume of stock solution is required? 
chemistry
. What would be the molarity of the solution produced when 276 mL of 6.00 M NaOH is combined with 125 mL of a 2.00 M NaOH solution? 
Math
A 7(1/2)% strength solution has been prepared. a) How many grams of medication are in the 7(1/2)% strength solution how do I setup this question? 
Chemistry
A solution contains 14% by mass of h2so4.find the number of moles of h2so4 in 155g of solution 
chemistry
A solution is made by mixing 25 mL of .35 M LiOH with 15.5 mL of .2225 M NH3. Kb=1.8x10^5 for NH3 Calculate the pH for the solution. 
math
Find a cubic polynomial p(x) so that the solution of p(x) ≤ 0 is [2,1] or [4,∞). Is your polynomial the only one that gives this solution? Explain. 
Chemistry
A 0.1L 0.5M solution of sulphuric acid is mixed with 0.2L 0.1 M phosphoric acid , the concentration of H+ ions in the resultant solution? 
Math
Please check my answers 1. Which ordered pair is a solution of y=x4? My answer is B (0, 3) 4.Which equation has (2,1) as a solution My answer is D y=2x+1 
algebra
what is the solution for 3x=2715x and what is the solution for 7(2m)=3m 
Algebra 1B
ax^2+bx+c=0 solution: 9, only solution 
physics
What is a solution? What are the 2 parts of a solution 
science
How many ml of a 2% solution will 20 ml of a 10% solution make? 
Chem Help :(
What is the pH of a solution in which [H3O^+] = 6.8 x 10^5 M? What is the pH of a solution in which [OH^] = 2.5 x 10^9 M? 
Math
3.) What is the solution to 33+m=10? 4.) what is the inverse to 38 5.) What is the solution to y+7=9 
Algebra
What is the solution to 5q=75? A. q=25 B. q=15 C. q=15 D. q=25 what is the solution to r/3=12? A. r=36 B. r=4 C. r=4 D. r=36 Is the answers A and D? 
Math Please help me and fast
13. Describe the number of solutions for the equation. 10(x2)=10x A.) one solution B.) no solution C.) infinite solutions*** 14. Describe the number of solutions for the equation. 2(y3)=2y6 A.)one solution B.)no solution*** C.)infinite solutions 18. Solve b9>20. I don'... 
CHEMISTRY TITRATION Q
The titration of 25.00mL of Ba(OH)2 solution with an aqueous solution of 0.500 M HCl reaches an end point when 30.20 mL of the HCl solution is added. Determine the concentration of M of the Ba(OH)2 solution. Soo 25.00mL=0.025L 30.20mL= 0.0302L moles= MxL (0.500M)(0.0302L)=0.... 
chemistry
A reaction mixture is in a 5.4 L flask at 25 oC initially contains only 7.64 grams of acetic acid. (CH3COOH). Set up your I.C.E. table and use it to answer the following questions. HINT: You will need to look up the Ka for this equilibrium reaction. CH3COOH(aq) ¡ê CH3COO(aq... 
CHEMISTRY
1)If 36 mL of KMnO4 solution are required to oxidize 25 mL of 0.02932 M NaC204 solution, what is the concentration of the solution? 2)A Certain brand of iron supplement contains FeSO47H2O with miscellaneous binders and fillers. Suppose 22.93 mL of the KMn04 solution used in ... 
CHEMISTRY
1)If 36 mL of KMnO4 solution are required to oxidize 25 mL of 0.02932 M NaC204 solution, what is the concentration of the solution? 2)A Certain brand of iron supplement contains FeSO47H2O with miscellaneous binders and fillers. Suppose 22.93 mL of the KMn04 solution used in ... 
science
a glass is partially filled with water. Five ice cubes are placed in the glass, causing the level of the water to reach the rim of the glass. Which of the following statments best explains the increase in water level? A)The volume of the sumerged ice is equal to the volume of ... 
chemistry
Calculate the enthalpy of change, Delta H of rxn, for each of the reactions. record the values in the data table part 2 I calculated the heat of rxn of the HCl +NaOHNaCl + H2O. How do i go from here to enthalpy of change 
Chemistry
Calculate the mass of baking soda, NaHCO3, needed to neutralize 3.0 mL of 3.0 M hydrochloric acid, HCl(aq). Ok, so I'm super confused. I have the equation, but I'm stuck with what to do with it. Equation: NaHCO3 + HCL > NaCl + H2O + CO2 
Chemistry
When 9.08 times 10^5 grams (one ton) of sodium chloride are electrolyzed in the commerical production of Chlorine, 5.24 times 10^5 grams of Chlorine are produced: 2 NaCl (aq) + 2 H2O (l) >>H2 (g) + Cl2 (g) + 2 NaOH (aq). Calculate the percentage yield. 
Chemistry
When 9.08 times 10^5 grams (one ton) of sodium chloride are electrolyzed in the commerical production of Chlorine, 5.24 times 10^5 grams of Chlorine are produced: 2 NaCl (aq) + 2 H2O (l) >>H2 (g) + Cl2 (g) + 2 NaOH (aq). Calculate the percentage yield. 
chemistry
A 12.42 gram sample of a mixture of NaCl and CaCl2 is dissolved in water and all the chloride is precipitated as AgCl. If the AgCl precipitate has a mass of 31.70 grams. How do I find the mass percentage of each component in the original mixture? 
chemistry
1.000 g of bronze was dissolved in the mixture of acids. The solution was transferred into 100 ml volumetric flask and filled to the mark. 10 ml aliquote of this solution was transferred into another 100 ml flask and diluted to the mark. 10 ml of the resulting solution was ... 
Chemistry
Ammonia has the formula NH3. Household ammonia is a dilute aqueous solution of NH3 . Aqueous ammonia is a base that can neutralize acids. If 18.4mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ... 
science
what is the formula for calculating density? 
Science
What is the relationship of temperature to density? 
science
what is density explian with exemples 
Chemistry
what is the density that has a mass of 77.0 g and a volume of 36 mL? 
Chemistry
what is the density that has a mass of 77.0 g and a volume of 36 mL? 
geo
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chemistry
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college chemistry
density of sulphur 
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Science
What is the formula for calculating density?