a density of 1.0 M solution of NaCL

29,400 results, page 75

chemistry

How many grams of NaCl must be added to 225.0 g of H2O at 45 °C to lower the vapor pressure of water by 2.21 mmHg? The vapor pressure of pure water is 71.93 mmHg at 45 °C.

chemistry

Using the activity series, write a balanced chemical equation for the following reactions: 1. iron metal is added to a solution of copper (II) nitrate 2. zinc metal is added to a solution of magnesium sulfate 3. hydrobromic acid is added to tin metal 4. hydrogen gas is bubbled...

chemistry

Find the pH of a 0.010M solution of NH4ClO4 and the pH of a 0.010M solution of NH4C2H3O2.

chemistry

If the KmnO4 of the last problem is in 30.30mL of solution what is the molarity (M) of the KMnO4 solution?

math

Which of the following equations has the given solution set? Solution set: Ø A)-2m + 5 = 2m + 5 B)-2m + 5 = -2m + 5 C)-2m + 5 = -2m - 5

math

Which of the following equations has the given solution set? Solution set: Ø A)-2m + 5 = 2m + 5 B)-2m + 5 = -2m + 5 C)-2m + 5 = -2m - 5

CHEMISTRY- molarity

what is the molarity of the solute in the following solution: a 12.5% w/v Co(NO3)2 solution?

chemistry

How do you make a 3 m solution of kbr? How many moles of kbr are in 1 liter of a .03 m solution?

Chemistry

What volume of a 3M KOH solution can be prepared by diluting 0.5L of a 5M KOH solution?

Chem

What volume (L) of a 3M KOH solution can be prepared by diluting 0.5 L of a 5M KOH solution?

chemistry

Make up a 500mL solution of 4.8M solution HCl (HCl gmw= 36.5g)

Chemistry

How many mL of 6.00 ppm solution are needed to make 4.00 L of a 0.100 ppm solution?

jchs

a sugar solution contains 26 g of sugar in 0.50 l of solution.waht is the concentration in g/l.

chemistry

a 2.3% (m/v) LiCI solution p;repared from 53.0 ml of a 10.0%(m/v)LiCI solution. what is volume in milliliters

algebra 1

Which of the following equations has the given solution set? Solution set: Ø

chemistry

If 4.0L of a 4.7M SrCl2 solution is diluted to 45L , what is the molarity of the diluted solution?

chemistry

If 4.0L of a 4.7M SrCl2 solution is diluted to 45L , what is the molarity of the diluted solution?

chemistry

What is the molarity of a solution containing 18.0g of KCl in 262mL of KCl solution?

Chemistry

What is the molarity of a NaOH solution if 21.3 mL of the NaOH solution is neutralized by 10.4 mL of 6.10 M H3PO4?

Chemistry

If 4.7M SrLi2 solution is diluted to 45L, what is the molarity of the diluted solution?

chemistry

a metal X that reacts with metal Y in a solution of Y but does not react with Z in a solution of Z means that ........

Algebra

Is (0,3) a solution to the equation y=x+3? yes no Is (1,-4) a solution to the equation y=-2x? yes no I need help finding the answer. I don't know how to.

Chemistry

How can dilute a 1 M HCl solution to obtain 100 mL of HCl solution 0,1 M?

PHYSICS

A large balloon of mass 237 kg is filled with helium gas until its volume is 318 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3. (b) Calculate the buoyant force acting on the balloon. ________N (c) Find the net force on the balloon and ...

Chemistry. can jus anyone giv me ther opinion.

Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur...

Chemistry

Select the statements that correctly describe buffers.? 1) The pH of a buffer solution does not change significantly when any amount of a strong acid is added. 2) The Ka of a buffer does not change when any amount of an acid is added to the buffer solution. 3) The pH of a ...

math

1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set. please help

Chemistry

when 7.50 grams of iodine (I2) is added to 48.7grams of carbon tetrachloride (CCl4), the iodine dissolves and a solution is formed. The weight percent of the iodine in the solution is? 7.50g I2/ 7.50 + 48.7 X 100 = 13.3 Did I do this correctly?

chemistry

A solution of HClO is mixed and found to have a pH of 4.53. Find what the initial concentration of HClO was for this solution. Ka = 3.00 × 10−8 for HClO. Answer in units of mol/L please help this is due in 1 hour

chemistry

A piece of Al weighing 2.7g is titrated with 75 mL of H2SO4 (sp.gr. 1.18 g/mL and 24.7% H2SO4 by mass). After the metal is completely dissolved the solution is dilute to 400mL. Calculate molarity of free H2SO4 in solution.

AP Chemistry

The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 642.3 torr at 64.7°C. What is the mole fraction of methanol in this solution?

Chemistry

If 42 mL of Cr2O7-2(aq) solution is titrated to the endpoint with 172 mL of 0.15 M Cl-, what was the concentation of Cr2O7-2 solution? I got the reaction 14 H+(aq) _ Cr2O7-2(aq) + 6 Cl- = 2 Cr+3(aq) + 3 Cl2(g) + 7 H20(l) Now I have drawn a blank. Please help!

Grammar

Circle the nouns that can be used with the verbs on the right . Engine-consumption-dependence (reduce) Answer : consumption and dependence Solution-dependence-alternative (find) Answer:solution and dependence Resources-technology-stocks(deplete) Answer:Resources and technology...

chemistry

Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C . Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons) with a molecular ...

chemistry

Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C. Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons) with a molecular weight...

Chemistry

Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C. Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons) with a molecular weight...

math

The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are limited and is a ...

Chemistry

I need to find the tested and published pH values of the following solutions: (1) 1.0 M NaCl (2) 1.0 M sodium acetate (3) 1.0 M sodium sulfate (4) 1.0 M Sodium Bisulfate (5) 1.0 M Sodium Carbonate (6) 1.0 M Ammonium Chloride\ Is there a reliable MSDS program, I can find the pH...

PRODUCTION OF SODIUM CARBONATE FROM NACL

IS IT POSSIBLE TO PRODUCE SODIUM CARBONATE FROM NAL AND CO2 CARBON DIOXIDE WITH OUT AMMONIA. IS IT POSSIBLE TO USE FOSSIL BASE CO2 INSTED OF CALCIUM CARBONTE AND HCL . THANKS

CHemistry....Please double check DrBobb

What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23C? Assume density for water is exactly 1g/mL. First we find out the freezing point: =(-23.0)-(0.0_ =-23.0 ...

Chemistry

Muriatic acid is the common name of industrial-grade hydrochloric acid (HCl). One of its uses is to clean or etch concrete in preparation for sealing or painting. It is typically sold in 5.00 gallon buckets, with a concentration of 11.7 M. a.What volume of concentrated ...

chemistry

1. (Answer c)The hydroxide ion concentration in a 1.0 mol/L solution of acetic acid at 25°C is a.4.2 x 10^-3M b.2.4 x 10^-11M c.2.4 x 10^12M d.2.4 x 10^-3M e.1.8 x 10^-5M I did [OH-]=root(Kw/Ka) x [salt] [OH-]=root(1.00 x 10^-14/1.8 x 10^-5) x [1] I don't get the desired ...

chemistry/ molarity, molality

A solution is made by mixing 20.0 mL of C6H5CH3, d=.867g/mL, with 140.0mL of C6H6, d=.874g/mL. assuming that the volumes add upon mixing, what is the molarity? what is the molality? i know that molarity= moles/L and molality= moles sol/kg solvent... but im not sure which ...

linear algebra

If A is a nonsingular matrix, what is the null space of A? If A is nonsingular then the equation: A x = y has a unique solution. Now, the equation: A x = 0 always has a solution: x = 0. If A is nonsingular, then this must thus be the only solution. This means that the null ...

chemistry

predict the identity of the precipitate that forms. calcium nitrate, Ca(NO3)2, and sodium chloride , NaCl why does the answer come out as no reaction? couldnt it form to be CaCl2 or NaNO3 i thought it had something to do with the fact that Na and NO3 are both soluble so they ...

science

what is the density of a material that has a mass of 54.457g and a volume of 13.5cm

Prin of Technology

If 3 cm3 of a substance has a mass of 300 gm, what is its density?

Physical Science

How do you calculate mass? If you are given density and volume.

chemistry

What is the density (in g/L) of hydrogen gas at 18.0 C and a pressure of 1670 psi?

6th grade social studies

What is the population density of Wauwatosa, WI?

physics

density of silves is 10.5 X 10^3 kg/m^3. find the volume occupied by 2 kg of silver.

science

what does the addition of salt to water do to the density and how would you explain it

science

What does salt to plain water do to its density? Explain your answer

chemistry

what is the density of ammonia at 90 degree C and 740 torr pressure?

science

How does a substance's density react to changes in temperature and pressure?

science

what is the si base unit for density, liquid, and rectangular solid?

science

hey guys, i need help again. wut iz density?

Science

Mass= 48g; volume=24 cm3 . What is the density of this substance ?

Physics

40 g of gasoline are mixed with 45 g of water. What is the average density of the mixture?

college chem

calculate the density of O2 gas( in g/L) at 1.22 atm and 25 degrees C

chemistry

How do I work out the density of HCI at 600 celsius ? Thanks

Chemistry

What is the density of hydrogen gas at 25 degrees celius and 1 Atm?

science

which layer of the atmospher has the highest density of gas molecules

physics

a 20.0L sample of hydrogen gas has a mass of 1.80g. What will its density be in g/ml?

chemistry

what is the density of a solid object with a mass of 1.65 lb and a volume of 170ml?

Chemistry

If aluminum has a density of 2.7g/cm3,what is the mass,in grams of the foil?

Science

calculate the density of 50.0 mg of a gas which occupies a volume of 0.0064 L.

chemistry

what is the mass in kilograms of 750 mL of a substance that has a density of 0.930 g/mL?

Human Geography

How do I calculate the physiological density of Namibia? I can't find it!! HELP!! :)

chemistry

What is the density of CO2 gas at -25.2 degrees celsius and 98.0kPa?

chemistry

what is the density of methyl gas at 25 degrees celcious and 1.50 atmosphere.

chemistry

what would be the mass of an object if its density was 0.34 g/ml and had a volume of 23 ml?

chemistry

what is the volume of a piece of wood that haas a mass of 6 g and a density of 0.5 g/mL?

science

what is the volume of a 6.o-kg aluminum ball having a density of 2700 kg/m3?

Science

If a block has a mass of 16.2 grams and a volume of 14 cc. What is the density if calculated?

Science-math

Calculate the density of 25 Grams at a volume of 10 millimeters

Science-math

Calculate the density of 25 Grams at a volume of 10 millimeters

Science-math

Calculate the density of 25 Grams at a volume of 10 millimeters

chemistry

prepare 500mM 100 ML HCL (37% purity, density 1.8)

physics

i need a mathematical relationship between density and height

chem

Determine the density of methane (CH4) in g/L at 21.9oC and 0.9 atm

chemistry

what is the volume (in ml)of a liquid(density=2.07 g/ml)weighing 130.grams?

chemistry

what is the volume (in ml)of a liquid(density=2.07 g/ml)weighing 130.grams?

physics

Mass of a block is 3.9 kg and volume is 0.0005 m. Find density in g/cm

chemistry

Calculate the density of a liquid if 48 mL of it has a mass of 45.79 g. Answer in units of g/mL

chemistry

What is the density of air if a 5000ml sample has a mass of 0.125?

chemistry

What is the density of air if a 5000ml sample has a mass of 0.125?

chemistry

what is the density of solid that has a mass of 250.g and a volume of 200.ml

science

was is density if mass = 10g and volume = 2cm squared?

World Geography

What biomes have the highest population density?

chemistry

what is the density of a sample of 65.0 ml of automobile oil having mass of 59.82 g

physics

Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.

physics

Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.

calculus

Find the center of gravity enclosed by y^2=4x,x=4,y=0 if its density is given by ä(x.y)=ky

chemistry

calculate the density of a liquid if 47.9mL of it has mass of 49.06g

science

if the expiremenal density of something is 2.66 but the true is 2.7 what is the percent error?

chemistry

A sample of oil has a mass of 65g and a volume of 80.0 mL. What is the density?

Science 8R - help!!!!

if you tear a piece of material in haft, how is the density affected?

science

changing the mass or volume of an object changes its density and ?

science

The density of a substance with a mass of 90g is 2 g/cm cubed. What is the volume?

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