a density of 1.0 M solution of NaCL
29,659 results, page 53

chemistry
How much 9% solution can you make by diluting 350ml of a 15% solution? 
Math
4(2x + 3) = 2(3x  4) one solution *my answer* infinite solutions no solution 
chemistry
What mass of solution contains 15.0g of sulfuric acid in a 20.0% solution 
Algebra 1
Find the solution of x^2+14x+112=0 I don't think that there is a solution 
Chemistry
The ph of a solution is 9.55 at 25degree celcius. What is the hydroxideion in the solution? 
Chem/bio question
HA is an acid that ionizes in 10% in solution. what is the [h+] of a 0.01 m solution of ha? 
science
pH of HCl solution is 2. Calculate the pH if this solution was diluted twice 
science
how many ml of 6M HCl solution are required to bring the pH of 10 ml of a 4M NaOH solution to 2.0 
chemistry
how many ml of 6M HCl solution are required to bring the pH of 10 ml of a 4M NaOH solution to 2.0 
Chemistry
I have a .01 M solution of N2, and the concentration of H2 in the same solution is .02. What is the Ksp. 
chemistry
calculate the ph of a solution that is 0.111 M HCI(strong solution) 
chemistry
0.01 mol of H2SO4 is present in its solution. Find the pH of the solution 
Science
Which is the molarity of a solution containing 20 g of CH3 OH in 300 mL of solution 
Math
Is x+3=2y and x=2y3 have infinitely solutions or one solution or no solution 
Chemistry
Does a neutral solution always act as a buffer solution? 
Chemistry
Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %. 
Chemistry
Help!!!! Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %. 
linear systems
This system has one solution. y=8x−14 y=x^2+4x−10 What is the ycoordinate of the solution? 
Chemistry
The normal concentration of sodium chloride in blood is 0.9% (w/v). Therefore, assuming FW for Nacl of 58.4 g/mole, an isotonic 0.9% (w/v) saline would have how many milliequivalents per liter (mEq/L) of Na ions? Can you show me how you came up with this answer? 
Chemistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ... 
Chmistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ... 
Chemistry
A chemist takes a 647 gram sample of this hydrate. She removes all the water possible from the sample and collects it. To this water, she adds 7.6 grams of lead(II) nitrate. Afterwards she wants to precipitate all the lead. She wants to use a solution of aluminum sulfate to ... 
chemistry
Which one of the following is a combustion reaction? A. CH4 + 2 O2 CO2 + 2 H2O B. HBr + NaOH NaBr + H2O C. Xe (aq) + H2O(l) HXe(aq) + OH (aq) D. NaCl (aq) + AgNO3 (aq) NaNO3 (aq) + AgCl (s) 
Chem
I got part a but part b I'm having trouble with I keep getting 56.2mL. I'm not sure what the next step is really to find part b. A. How would you prepare 250 mL of a 0.150 M solution of CoCl2 from solid CoCl2 and distilled water? Dissolve 4.87 grams solid CoCl2 into enough ... 
science
during the experiment, the students were asked to prepare a 10% (mass/mass) solution of sugar in water . ramesh dissolved 10g of sugar in 100g of water while sarika prepared it by dissolved 10g of sugar in water 100g of the solution a) Are the two solution of the same ... 
Chemistry URGENT/DR BOB
Can someone may sure that I balanced the following groups of equations correctly. Write an equation to show how acetic acid reacts with water to produce ions in solution. C2H4O2 + H2O >>>>>>> H3O + C2H3O Write an equation for the neutralization of HCl and ... 
Chemistry
Calculate the mass in grams of the undiluted bleach that was in the sample of bleach titrated. Given: Density of undiluted bleach unkown is 1.042 g/mL. 14.44 mL of .100 M Na2S2O3. .0537 grams of NaClO. Each sample should conain 1/5 of the original undiluted bleach. Since 5mL ... 
Please Help CHEM
Can you please tell me if these are right? Determine the pH for the following solutions A [OH] = 1.0 X 10^7 M I got 7 B. [H3O+ = 4.2 X 10 ^3M I got 2.4 C. [H3O+]= 0.0001M I got 4 D. [OH] = 8.5 X10^9M I got 5.9 What are the [H3O+] and [OH] for a solution with the ... 
acidbase titrations
what is it important to keep the NaOH solution covered at all times? How will the molarity of the NaOH solution be affected by its continued exposure to the atmosphere? The pale pink color of the titration solution at the end point will fade to colorless after several minutes ... 
Physics PLEASE!!
A Ushaped tube is filled mostly with water, but some vegetable oil has been added to both sides of the U tube. On the right side of the tube, the depth of oil is 5.00 cm . On the left side of the tube, the depth of the oil is 2.30 cm. The density of the water is 1x10^3 , and ... 
chemistry
Hello, ((((((I need the answer in a hour from my posting))))) I have been posting this problme for four days ago, so please show Sympathy. I solved it but I want to be 100% su ...there is moreshow problem Hello, ((((((I need the answer in a hour from my posting))))) I have ... 
math
The scientists Verhulst (1828) where is the natural growth rate of the population when resources are limited and is a positive constant called carrying capacity of the environment. (a) Using sign analysis, find all constant solution and discuss the general behavior of solution... 
Chemistry
1) Using a table of standard electrode potentials (such as the one in your textbook), calculate the standard cell potential for a cell made by placing a zinc electrode in a Zn2+(aq) solution which is connected by an electrolyte to a Ag+(aq) solution containing a silver ... 
PreAlgebra Calculus
NEED HELP PLEASE Mixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it was platinum? 2. 12 gal. of a saline solution ... 
Chemistry
A solution is made by dissolving 0.500 mol of HF in enough water to make 1.00 L of solution. At 21 C, the osmotic pressure of the solution is 1.35 atm. What is the percent ionization of this acid? This is what i did.. is it correct? (1.35 atm) = (2)(M)(0.08206)(294 K) M = 0.... 
science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution? 
science chemistry
1000g of a 55%(mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution.how many liters of water should be added to the starting solution? 
math
clearly define variables. set up the equations.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol? x represents? y represents? equation 1? equation 2? 
PHYSICS!!
A person thought it would be a good idea to change a tire on the side of a hill. The tire has a width of W = 0.30 m and a radius of R = 0.40 m. The inside of the wheel is empty, but the wheel is solid from a radius of R/2 to R with uniform density. The density of the material ... 
algebra
How much of a solution that is 45% sulfuric acid needs to be mixed with a solution that is 90% sulfuric acid to produce 120 liters of a solution that is 60% sulfuric acid? 
(Math) PLZ CHECK ANSWERS
1. Which number is a solution of the inequality? 10.6<b A)18 B)9 C)7 D)14*** 2. Which number is a solution of the inequality? y+2>8 A)5 B)6 C)6 D)7*** 3. Which number is a solution of the inequality? 6>z(10z) A)0 B)1 C)2 D)3*** 4. What are all the subsets of the ... 
algebra
How much of a solution that is 45% sulfuric acid needs to be mixed with a solution that is 90% sulfuric acid to produce 120 liters of a solution that is 60% sulfuric acid? 
chem
what are the normal freezing points and boiling points of the following solutions: a. 21.1g NaCl in 135mL of water b. 15.4g urea in 66.7 mL water? 
chem
what are the normal freezing points and boiling points of the following solutions: a. 21.1g NaCl in 135mL of water b. 15.4g urea in 66.7 mL water? 
chemistry
3 MgCl2(aq) + 2 Na3PO4(aq) ==> Mg3(PO4)2(s) + 6 NaCl(aq) How many milliliters of 0.0800 M Na3PO4(aq) will react with 0.060 mol of MgCl2(aq)? 
College Chemistry
If 3.00 moles of NaCl were mixed with 0.9 L of 0.5 M of AgNO3, how many moles of solid would form? Include the formula for the solid. 
Science
Explain why chlorine (Cl²) is a gas at room temperature, but at sodium chloride (NaCL) is a solid at room temperature. 
science
AgNO3+NaCL=AgCL+NaNO3 is not a redox reaction but Cu+2AgNO3=2Ag+Cu(NO3)2 is a redox reaction.explain 
Math help asap!!!
5(x – 9) = 5x no solution one solution infinite solutions –2(x – 1) = 2x – 2 infinite solutions one solution no solution 
Chemisty
How can naphthalene be separayed from a mixture of KBr and Sand? How can you separate NiCO3 from NaCO3 in detail? How can you separate AgCl from NaCl in detail? 
Chemistry
write the complete and net ionic equation for: HCl+NaOH>H20+NaCl HNO3+NaOH>H20+NaNO3 
Science
Na subscript 2SO subscript 4 + CaCl subscript 2 produces CaSO subscript 4 + NaCl Please help me balance this equation and show your work 
science
How do I do the following? Write the net ionic equation for the following molecular equation. 3 CoCl2(aq) + 2 Na3PO4(aq) Co3(PO4)2(s) + 6 NaCl(aq) 
Chemistry
In the reaction of formation of sodium chloride (NaCl), 15 g of sodium is placed in contact with 20 g of chlorine. What is the reactant in excess and its mass in excess? 
physics
A volume Vi = 23.1 L of air at temperature T = 21 ¢XC is compressed at constant temperature to a volume Vf = 7.7 L. The relative humidity of the air before compression is R = 56.4 %. Saturated water vapour in air at this temperature has a vapour pressure vp = 2.5 kPa and a ... 
Chemistry
Water molecules can dissociate into hydronium ions (H3O+ ,often just called H+ for shorthand) and hydroxide ions (OH). The concentration of each of these ions in pure water is 10^7. In other words, in pure water one out of every 10 million molecules is dissociated into a ... 
chemistry
3BaCl + 2Na3PO4 > Ba3(Po4)2 +^NaCl is Ba3(PO4)2 the ppt. because Cl salts are soluble so it will dissolve? 
Chemistry
MgCl2(aq) + 2 NaOH(aq) > Mg(OH)2(s) + 2 NaCl(aq) How many grams of Mg(OH)2 would form if 50.00 mL of 0.9750M NaOH were combined with 50.00 mL of 0.8820 M MgCl2? 
Chemistry
MgCl2(aq) + 2 NaOH(aq) > Mg(OH)2(s) + 2 NaCl(aq) How many grams of Mg(OH)2 would form if 50.00 mL of 0.9750M NaOH were combined with 50.00 mL of 0.8820 M MgCl2? 
Chemistry
Using the balanced equation of: HCl+NaOH>H20+NaCl, how many moles of HCl could be neutralized with 13.2 mL of 3.00 M NaOH? 
chemistry
According to the reaction NaOH + HCl ¨ NaCl + H2O, which is the limiting reactant when 37.0 g of HCl are mixed with 37.0 g NaOH? 
chemistry
How many grams of NaOH would be needed to react with 199 g of HCl? NaOH + HCl > NaCl + H2O 
chemistry
If 3.00 moles of NaCl were mixed with 0.2 L of 1.5 M of AgNO3, how many moles of solid would form? Include the formula for the solid. 
chemistry
the boiling point increased by 2oC, what is the approximate molality of NaCl. K boiling point(water)= 0.512oC/m 
chem
which of the following are mixtures? 1. air (mostly n2 and o2) 2. salt (NaCl) 3. Salt Water 4. Water (h20) is the answer 4 and 2 ? 
Chemistry
What is the NET IONIC EQUATION for the reaction of magnesium nitrate solution with silver sulfate solution. Is it AG2S04 
chemistry
A solution is prepared by dissolving 17.1grams of sucrose, c12h22o11, in 275grams of h20. what is the molality of that solution? how would i do this??? 
Math 116 algebra please check
Solve the following systems of equations x + 6y = (1) x+ 9  6y (2) What is the solution of the system? I get N for no solution 
chemistry
Calculate the hydrogenion concentration [H+] for an aqueous solution in which [OH] is 1 x 10^11 mol/L. Is this solution acidic, basic, or neutral? 
Math
solve by the elimination method. what is the solution of the system? type a pair, an integer or a fraction, N if no solution, and I for many solutions. Q: x + 8y = 17 x + 2y = 3 A: N? 
math
solve by the substitution method 3x + 6y = 27 2x + y = 12 what is the solution of the system..(type an ordered pair, or N if there is no solution) has to be like (3,5)please help me 
chem!
A solution was prepared by dissolving 0.163 g of sugar, (C12H22O11 MW = 3423gmol) in 100.00 mL water. What is the molarity of this solution? 
Math
Please help! They are asking for 2 solution sets and I don't know where to start. Thanks in advance! Solve and write interval notation for the solution set. 3 – 8x < –5 or 3 – 8x > 19 
Chemistry
A solution is prepared by dissolving 10.0 moles of Na2SO4 solid in 0.500 kg H2O. what is the vapor pressure of the solution at 30 C? 
Chemistry
The pH of a solution is 11.30. In order to find the concentration of H+, wouldn't I simply take the pH of the solution and plug it into the formula 10^pH? 
Algebra 2 URGENT
How much water must be evaporated from a 300 L tank of 2% salt solution to obtain a 5% solution? 
chemistry
what is molarity of H2SO4 solution containing .12 moles acid per 75 mL solution? please show math 
chemistry
A solution containing 26.05 mg of an unknown protein per 23.5 mL solution was found to have an osmotic pressure of 3.75 torr at 44 C. 
chemistry
Calculate the molarity of a solution containing 40.0 g glucose (C6H12O6) in enough ethanol (C2H5OH) to make 40.0 mL of solution. 
Algebra
To reduce 32 grams of a 25% solution of antiseptic to a 10% solution, how much distilled water should a pharmacist add? 
CHEMISTRY
What is the hydroxide ion concentration in mol/L of a solution if 0.080 grams of NaOH are dissolved in 2.0 liters of solution? 
chemistry
what is the molar concentration of an aqueous NaOH solution when 45.0 grams are dissolved in water to make 100mL of solution 
Chemistry
What is the molarity of a solution that contains 0.30 moles of KBr in 400 mL of solution. Please show all work 
math
if an iv dose of mannitol is 1.5g/kg,administrated as 15% solution.how many mls of the solution should be administered to 150 pound patient 
chemistry
how do you solve this problem?? how much NaOH (in grams) is needed to prepare 546mL of solution. What is the pOH of the solution? 
Chemistry
A solution is made by diluting 18.2 g glucose (C6H12O6) in 0.150 kg water. What is the mass percentage of solute in this solution? 
Chemistry
If you take a 10.0{mL} portion of the stock solution and dilute it to a total volume of 0.700 L, what will be the concentration of the final solution? 
chemistry
Hydrochloric acid (68.0 mL of 0.037 M) is added to 249.0 mL of 0.062 M Ba(OH)2 solution. What excess ions are left in the solution? 
chemistry
How much of a 0.23 M NaOH solution is needed to neutralize 27 mL of a 0.85 M sulfuric acid solution? The units are mL. Can you please explain why you did what did Thank you 
ChemistryConfused!!
You have 10mL of a 1.0 M Ba(OH)2 solution and add it to 2.5L of water. What is the concentration of hydroxide ions in the diluted Ba(OH)2 solution? 
chemistry
If you were given an unknown solution, write the steps that would be needed to prove that a solution contained phosphate. 
chemistry
A solution of acid was found to have a pH of 1.60. What is the hydrogen ion concentration of the solution? (3 sig.fig) [H+(aq)] = ? mol dm–3 
Chem
How many moles of NaOH would you need to add to 800 ml of a 0.4 M H2CO3 solution in order to bring the pH of the solution to 10.5? 
Chem
How many moles of NaOH would you need to add to 800 ml of a 0.4 M H2CO3 solution in order to bring the pH of the solution to 10.5? 
Chemistry
Calculate the pH of a solution made by adding 2.40 g of lithium oxide to enough water to make 1.300 L of solution. 
chemistry
Determine how many milliliters of 0.102M NaOH solution is needed to neutralize 35.0mL of 0.125M H2 SO4 solution. 
Chemistry
Please help me understand!..If you have 100.0mL of a 30.0% aqueous solution of ethanol, what volume of water is in the solution? 
chemistry
0.60 g of hydrogen chloride (HCl) is dissolved in water to make 6.5 L of solution. What is the pH of the resulting hydrochloric acid solution? 
chemistry
Predict What would happen if 0.1M NaBr had been added to the solution instead of the Na2S solution 
chemistary
what is the molarity (mol/L) of sodium (Na)in a solution containing 0.4 mole of Na+ cation in 400 mL of an aqueous (water)solution?