a density of 1.0 M solution of NaCL

29,400 results, page 84

Math

1. Calculate the amount of fluorescein (MW 332.31) you will need to make 10 mL of 15 mM solution in ethanol (EtOH). My answer:0.05 g 2.Using Equation C1V1=C2V2 calculate the volume of stock solution (15 mM) you need to make 1 mL of each working solution concentration: 0 mM and...

physical science

compute the density in g/cm of a piece of metal that has a mass of 0.520kg and a volume of 75cm

chemistry

how do u calculate the density of an irregular shape? this is 1 of my hm/wk questuions n i wasn't listening...i mean i didn't hear what he said

chemistry

a test liquid has a density of 1.1g/mL. when you pour some of it into a cup of water, what will happen?

mentor high

What is the density of carbon dioxide gas if 0.196 g occupies a volume of 100 ml?

earth science

The Mororovicic Discontinuity marks the change in rock density and elasticity between the:

Science

How do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml)? Thank you very much for your help.

chemistry

The density of a gas is 2.0 grams per liter at STP. Its molar mass is approximately?

Chemistry II

what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm?

Physical Science

if an object has a mass of 615 grams and a volume of 105cm3 is the density 5.86 g/cm3?

Science

a cumulus cloud is growing taller, what will happen to the density of the air beneath it? explain

chemistry

I need to calculate the density, with work shown. 50.0 mg of a gas which occupies a volume of 0.0064 L ?

chemistry

how much volume would an object have if its density was 3.2 g/ml and had a mass of 2.4 grams

ut

The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice.

physics

the density of a block of wood with a colume of 50 cubic centimeters and a mass of 10o grams is

physics

find the mass of the moon if its radius is 1.76*1000000 m and the average density is 4*1000kg/m cube

physics

A liquid expands on heating. Explain briefly how its density will change with rise in temperature

physics

A liquid expands on heating. Explain briefly how its density will change with rise in temperature

chemistry

calculate the density of oxygen,O/2 under each of the followig conditions-stp,1.00 atm and 35.0 celsius?

chemistry

give the practical details of how you would prepare a 0.5M hydrochloric from a stock of 34%(w/w)with relative density of 1.18.

chemistry

Identify (give the name and the structural formula) of an alkane that has a density of 4.558 g/L at 2 atm and 37 C.

Chemistry

A 0.217-kg sample of methylene chloride has a density of 1.326 g/cm3. Calculate its volume.

Physics

Using volume of a sphere, calculate the average density of Saturn (radius = 60,268 km).

physics

What is the density of nitrogen gas (molecular mass = 28 u) at a pressure of 1.2 atmospheres and a temperature of 284 K?

physics

Calculate the internal energy of 25.0 g of low-density oxygen gas (O2) at a temperature of 255 K.

chemistry

Dr Bob i know the density of a neutron is 1.00727638 but do not know how to multiply it out. This supposed to be a beginner coarse.

chemistry

Calculate the percent error when a student measured a sample of aluminum and obtained a density of 2.5g/mL.

chemistry

Calculate the percent error when a student measured a sample of aluminum and obtained a density of 2.5g/mL.

physical science

what is the density of a peice of wood that has a mass of 25.0 grams and a volume of 29.4cm cubes?

chemistry

What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm

Chemistry

What is the molar mass of a compound if a gaseous sample has a density of 2.807 g/L at 18 °C and 728 torr?

Chemistry

What is the molar mass of a compound if a gaseous sample has a density of 2.807 g/L at 18 °C and 728 torr?

physics

what will happen to the bone structure if earth becomes more dense than its actual density?

Chem.

What is the mass (in kilograms) of a cube of silver that measures 0.68 on each side, when the density of the sample is 10.5g/cm3

chemistry

What is the density of a block of unknown material with a mass of 15.86 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.8 cm

science

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm

chemistry

What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 4.1 cm

Chemistry;HELP

How would you do this problem? /: 1. Calculate the density of a material that has a mass of 52.497grams and a volume of 18.5cm^3?

Science

The density of ethanol is 0.789 g/cm3 at 20 degrees celsius. What is the mass of 150cm3 of this alcohol?

physics

A body immersed in liquid has an upthrust of 140N with a density of 12kg calculate the velocity

physics

A body of mass 10kg in air and 4kg in water calculate the volume and its density

chemistry

What is the density of a block of unknown material with a mass of 17.02 g if the dimensions are: length = 2.2 cm height = 1.7 cm width = 2.7 cm

physics

The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density.

Earth Science

Explain how you could measure the density of a mineral with an exact amount of water and a scale .

Chemistry

If the density of ethyl alcohol is 0.789 g/mL, how many quarts can be produced by the fermentation of 100.0 lb of sugar?

science

if you get cut a type of metal in two pieces do they both have the same density

science

an object's resistance to change in motion is called is A. Density B. Inertia C. Mass D. Degrees

Physics

A guitar string has a mass of 30g and length of 2m. Find the tension if its density is 0.2kg/m^3

Chemistry

a gas phase compound has a density of 2.10 g/l at 751 torr and 100 c what is the molecular weight

science

A solid of relative density 1.25 is found to weigh 12 g in water.find its weight in air.

Physics

What is the tension in the string in (Figure 1) ? The volume of plastic ball is 95 cm3 and the density is 840 kg/m3.

VCU

Physical Sciences: what is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?

Math!!!

Suppose Y is a continuous variable whose density gives the following probabilities: Pr{ Y < -3 } = 0.05 Pr{ -3 < Y < -1 } = 0.15 Pr{ -1 < Y < 0 } = 0.3 Pr{ 0 < Y < 1 } = 0.3 Pr{ 1 < Y < 3 } = 0.15 Pr{ Y > 3 } = 0.05 Compute Pr{ Y > 0 } = ???? ...

math

Given a density of 1.25 pound per gallon and a mass of 2.5 pounds find the volume

stat

let x and y be continuous random variables having joint density f(xy)=a^2 e^-ay, 0<=X<=Y. Find the marginal densities of X an Y.

Chemistry

To neutralize 8.3 4 ml of HCl 36.5% by mass and density = 1, 2 g/cm3, the required volume of 5 mol/L NaOH will be?

Chemistry

To neutralize 8.34 ml of HCl 36.5% by mass and density = 1, 2 g/cm3, the required volume of 5 mol/L NaOH will be?

Science

measure the pressure of (water being) 1000kg/mmm density and 40 kg weight on its base

Physics

To what potential a sphere of radius 10cm be charged so that the surface density of charge is equal to 1

Physics

A stone with a mass of 20kg and density of 20,000kg/m3 is immersed in water. Find its weight

Science

Mass of iron cube having edge length 1.8m is 70g.Find it's density.

Physics

The density of the dead sea is 1240kg/m^-3. Calculate the depth at which the pressure would be 3 atm

Chemistry

Does sodium metal react with potassium hydroxide solution? No. It would be a displacement reaction and this only works if the metal is higher in the activity series than the one it wants to displace. Given that potassium is the highest ranked metal (sodium second), there ...

college chemistry

In the derivation of this expression: [ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator is the only form present in the most acidic solution. Is this a valid assumption? Why or why not? Support your answer by determining the ...

chem

State the type of reaction. Predict the products of the reactions. I have no clue how to do this any help? C3H8 + O2 ---> Mg + HCl ---> AgNO3 + NaCl ---> CuSO4 + Zn ---> How much of this do you know how to do? Just checking answers. Give us your answers and we ...

Chemistry

500.0mL of 0.220 mol/L HCl(aq) was added to a high quality insulated calorimeter containing 500.0mL of 0.200mol/L NaOH(aq).Both solutions had a density of 1.000g/mL & a specific heat of 4.184 J/g.K. The calorimeter had a heat capacity of 850.0 J/degree C. The temperature of ...

Chemistry

A goal of the acid-base titration in this scenario is to determine the concentration of sodium hydroxide solution. To do this, a 1.3000 g sample of potassium hydrogen phthalate (KHC8H4O4) is massed out. The KHP has one acid proton (H+). The solid is dissolved in a beaker and 2...

Is anyone here a chemistry genuis?

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium sulfate is added, a ...

Chemistry

In the derivation of this expression: [ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator is the only form present in the most acidic solution. Is this a valid assumption? Why or why not? Support your answer by determining the ...

AP CHEM FULL ?

This is part of a marathon problem, we have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given. a.) All the compunds are electrolytes, although not all of them are ...

Calculus!!

Consider the differential equation given by dy/dx = xy/2. A. Let y=f(x) be the particular solution to the given differential equation with the initial condition. Based on the slope field, how does the value of f(0.2) compare to f(0)? Justify your answer. B. Find the particular...

chem

which is the correct balanced equation for a given titration process, (a) or (b)? a) 6H+ + 2MnO4- + 3H2O2 -> 4O2 + 2Mn2+ + 6H2O b) 6H+ + 2MnO4- + 5H2O2 -> 5O2 + 2Mn2+ + 8H2O Process: Make a solution in a 100mL volumetric flask using 1g of NaBO3*4H2O, 20mL of 1m H2SO4, ...

Chemistry

How will the boiling point of a liter of water containing 1 mole of sodium chloride (NaCl) compare with that of a liter of water containing 1 mole of calcium chloride (CaCl2)? Explain your answer.

chemistry

30. How will the boiling point of a liter of water containing 1 mole of sodium chloride (NaCl) compare with that of a liter of water containing 1 mole of calcium chloride (CaCl2)? Explain your answer

chemistry

1. If a gaseous sample contains 73% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)? 2. Calculate the vapor pressure of a solution of 0.60 mol of cholesterol in 4.5 mol of toluene at 32°C. Pure toluene has a ...

math

the diagram shows a piece of wood in the shape of a cuboid. diagram: 3cm width, 20cm length, 1.2m for the volume of cuboid The piece of wood is 3cm by 20cm by 1.2m. The mass of wood will float in sea water if the density of the wood is less than the density of the sea water. ...

College Chemistry 104

Students are attempting to construct a battery in the laboratory that will light up a light bulb. Compare the following lists prepared by students and determine which student will not be able to successfully build a "battery" that will light up the bulb. Student 1 large beaker...

math

a bank account earns 7% annual interest compounded continuously. you deposit $10,000 in the account, and withdraw money continuously from the account at a rate of $1000 per year. a. write the differential equation for the balance, B, in the account after t years b. what is the...

Biochem

You have prepared a 400 mL of a .210 M acetate buffer solution with a pH of 4.44. 1. Determine the concentration of both the acetate and acetic acid in the solution. 2. If you made this solution using solid sodium acetate (MW = 136 g/mol) and liquid acetic acid (17.6 M, ...

Chemistry

New problem. Any assistance is greatly appreciated. 22.5 ml of ethanol (density=0.789 g/ml) initially at 7.7 deg. C is mixed with 31.6 ml of water (density=1.0 g/ml) initially at 27.1 deg. C in an insulated beaker. Assuming that no heat is lost, what is the final temperature ...

Chemistry

New problem. Any assistance is greatly appreciated. 22.5 ml of ethanol (density=0.789 g/ml) initially at 7.7 deg. C is mixed with 31.6 ml of water (density=1.0 g/ml) initially at 27.1 deg. C in an insulated beaker. Assuming that no heat is lost, what is the final temperature ...

chemistry

When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2 phases when each of the ...

chem

When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2 phases when each of the ...

Organic Chemistry - Refractive Index

Hi, I have a question that I don't know if I am on the right track to answering. If two samples of organic liquids give the same refractive index reading, are the two liquids the same? I know the refractometer is a very precise instrument - up to 8 decimal places. It measures ...

high school chem

if 150 ml of HNO3 of unknown conceration withmethyl orange indicator present is tritrated with [0.163M]KOH, then the red solution turns yellow after 28.9 ml of the KOH is added. what is the molarity of HNO3 solution.

Chemistry

A 1.00% by mass MgSO4(aq) solution has a freezing point of -0.192°C. (a) Estimate the van't Hoff i factor from the data. (b) Determine the total molality of all solute species. (c) Calculate the percentage dissociation of MgSO4 in this solution. Can anyone help me with this ...

chemistry please help!!

A 0.2mol/L solution of KMnO4 has been added to 10 ml of 0.5mol/L acidified FeSO4. write the balance equation of the reacttion then calculate the volume of the oxidizing solution that should be added to oxidize all the Fe^2+ ions. please help and thank you!!

chemistry

How would I calculate the molarity of the resulting solution if 25.0mL of 1.50 M HCL solution is diluted to 500 mL. I know you have to change the milliliters to liters by dividing by 1000 and I know that M= Moles of Solute/Liters of Solute but after that I'm lost. Please help!

chemistry

Assuming that the total volume does not change after 0.200 g of KCl is added to 1.0 L of a saturated aqueous solution of AgCl, calculate the number of moles of Ag+ ion in the solution after equilibrium has been reestablished. For AgCl, Ksp = 1.8 × 10¯10

Economics

Does this thesis on a solution for welfare sound good?: "For the betterment of Canada, the welfare system needs to undergo a serious change in the rules for applying to welfare." I plan on listing each problem (one subtopic each) of welfare and than the solution and how it can...

Chemistry

How do I do this problem, I am very confused on how to even begin: An aqueous solution contains 0.167 M ascorbic acid (H2C6H6O6) and 0.194 M hydroiodic acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. [C6H6O62-] =? mol/L.

college algebra

write the expression as a single logarithm 1. In(x/x*2)+In(x+2/x)-In(x^2-4) solve the following logarithmic equation. 2. log_9(x-2)+log_9(x+1)=2 what is the exact solution? What is the decimal approximation for the solution when rounded three decimal places. please show work

basic chem

If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?

chem please help!

If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?

chemistry

a 23.74 ml volume of .0981 M NaOH was used to titrate 25 mL of a weak monoprotic acid solution to the stoichiometric point. determine the molar concentration of the weak acid solution. Express your answer to the correct number of significant figures.

Chemistry

Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 4.00*10^2 mL of solution and then titrate the solution with 0.138 M NaOH. C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O(l) Find concentration of Na+ at equivalence point.

Chemistry

If a solution containing 118.44 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g of sodium sulfide, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?

Chemistry

When treating a patients physicians use an isotonic means that this solution will have the same osmotic pressure as the body fluid such as blood. how many grams of glucose (C6H12O6) is in 100.0 g of H2O in the isotonic glucose solution (5.00% m/m)?

chem

The solution of known concentration to use to evaluate Z was prepared as follows: 2.00mL of 0.00201 M KSCN and 18.0 ml 0.200 M Fe (NO3)3. Assume that all of the SCN- has been converted to Fe(SCN)2t in this solution. Fe3+ SCN- ==== Fe Fe(SCN)2+ I don't really know how to do any...

chem

If a solution containing 88.445 g of mercury(II) perchlorate is allowed to react completely with a solution containing 13.180 g of sodium sulfide, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?

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