Mixture Definition and 277 Threads

i am not sure if my question fits in this place. if i have certain amounts of water and oil, 3kg and 4kg. i mix them together, and i want to find the specific heat capacity of the mixture, according to my book the specific heat capacity of such a mixture is the sum of the two specific heat...

Hi, I have been struggling a little with this question. Scuba divers breathe a mixture of O2(g) and He(g) to avoid "the bends, a condition caused by nitrogen in the blood. If 65.0g O2(g) and 2.00g He(g) are placed in a 5.0L tank at 25oC, calculate: If the average human takes 15 breaths...

I had this wuestion last week for homework and didnt get the answer because i was not at school today. Any help would be greatly appreciated A 12.00g sample of a mixture of KCLO3 and KCL is heated until all the oxeyen has been removed from the sample. The product, entirely KCL, has a total...

Hello, I think this is a pretty easy question here that I think I may be just overlooking. I am asked this huge drawn out DE problem about a tank being filled with water and brine and I am asked to solve all these different parts. My problem is that the first part of the question asks to...

I spent quite a bit of time trying to figure this out, but I just can't seem to get this question: When a 10.0g mixture of Ca(ClO3)2 abd Ca(ClO)2 is heated to 973 Kelvins in a 10.0 L vessel, both compounds decompose, forming O2 and CaCl2. The final pressure inside the vessel is 1.00 atm. What...

Say you were given an unknown mixture of potassium chlorate and potassium chloride. First off what would the formula for this reaction be. Second how would one determine the experimental percentage of potassium chlorate in the unknown sample, the emperical formula, the number of moles of...

In the figure that shows saturated vapor and liquid condition under varying temperature and specific volume (constant temperature), there are 2 lines, 1 is saturated liquid line, the other is saturated vapor line. so the region in between these 2 lines is called the mixture of saturated liquid...

Which 2 groups of substances below contain 1 element, 1 compound and 1 mixture? pick 2 groups. A.) Gold, sodium chloride, steel B.) oxygen, iodine, air C.) methane, iron(III)chloride, sea-water D.) Helium, carbon(IV) oxide, mixed dessert E.) Bronze, stainless steel, nitrogen(IV)oxide i...

Regarding about the Mixture. Question goes: Statement concerning a mixture is INCORRECT. only one statement is incorrect. which one? A.) It has a variable composition by mass. B.)It boils over a range of temperatures. C.)It has properties that are entirely different from those of its...

:confused: 1.) Is it possible for the number of neutrons and the number of protons to be equal? 2.) Is it possible for the mass number(nucleon number) and atomic number(proton number) of an atom to be equal? 3.) Is there any energy invovled in the formation of mixture? 4.) does...

What is the mixture formula when combining two or more fluids? Thanks Pavdarin

I have a question here and i don't really know how to do it. I need to know : What is the pH of a mixture of 30ml 0.1M acetic acid and 30ml of 0.1M NaOH? \[HC_2 H_3 O_3 = 1.8*10^{ - 5} \] I'm not even sure what the equilibrium equation would be! Any help would be appreciated.

A mixture is defined as 2 substances that are arbitirarily combined. They are either homogenous or heterogenous. A substance is defined as being homogenous and has definite, fixed composition that is NOT arbitrary. On some classwork we did, this following was stated as being true: wood...

Mixture problem example: You need parts of a 30% chlorine and 55% chlorine mixture to make 100 gallons of a 40% chlorine. mixture. To figure out what the ratio of 30 to 55 is: 55% - 40% = 15 parts needed of 35% mixture, 40% - 30% = 10 parts of 50% mixture. 15 parts of 30% reduces to 3...

Q: A large tank initially contains 100 gal of brine in which 10lb of salt is sissolved. Starting at t=0, pure water flows into the tank at the rate of 5 gal/min. The mixture is kept uniform by stirring and the well-stirred mixture simulaneously flows out at the slower rate of 2 gal/min. a)...

hi guys 16 grams of helium gas is mixed with 16 grams of oxygen... what will be the ratio Cp/Cv of the mixture... how to calculate it?? i thought on the basis of degree of freedom for monoatomic and diatomic mixture...but that can take me to the answer only by...

Hi all. About Gibbs' paradox (with the mixture entropy for ideal gases): Is the paradox a Thermodynamic paradox? Because what's bothering me is that in Thermodynamics, the entropy is determined up to a "constant", allegedly, \[ S_0 \] , which in my opinion is dependent of \[ N \] ...

The solubility product calcium hydroxide, Ca(OH)2 is 7.9 * 10tothe-6 at 25degcel. Will a precipitate form when 100mL of 0.10mol/L of CaCl2 solution and 50.0mL of 0.070 mol/L of NaOH solution are combined?

I am searching for the physical properties of a binary gaseous mixture. In particular, I would want to know the local viscosity \mu and local mass diffusitivity D of any binary mixture of gases, as a function of the local mass fraction of each other. I have not found nothing in Google...

A combination of 0.250 kg of water at 20*C, 0.400 kg of aluminum at 26.0*C, and 0.100 kg of copper at 100*C is mixed in an insulated container and allowed to come to thermal equilibrium. Ignore any energy transfer to or from the container and determine the final temperature of the mixture. I...

As we know, there are several method for separating mixture(separation) for different cases, they are Filtration, Evaporation, Crystallization, Distillation, Fractional distillation, using Separating funnel to separate two immiscible liquids and Paper chromatography to separate small amount of...

I need help setting this problem up. I keep coming up with the wrong answer. I know it is suppose to be either a separable or linear differential equation. Can anyone help me get it set up right? I think its suppose to be a linear 1st order diff equation. A 100 gallon tank is filled with...

Hi all, i often help out in the chemistry section, was wondering if you could help me with a question: A vessel of thermal capacity 500 J/oC contains 0.5 kg of water at 50oC. 0.2 kg of water at 20oC is added and perfectly mixed with the hotter water. In this process, heat is lost by the...

Hi People, Could someone please give me a hand with this question : Explain why a mixture of pure nitric acid and pure hydrochloric (VII) acid (HClO4) contains H2NO3(+) ions and ClO4(-) ions. Thanks a lot, Joe

Hello all I was just wondering what is the difference between a homogenous mixture and a heterogeneous mixture. For example: a. sea water b. tomato juice c. gasoline d. milk What type of mixtures are these? Also, what do we classify fire as (solid, liquid, gas)? Any help...

Hello all I was just wondering what is the difference between a homogenous mixture and a heterogeneous mixture. For example: a. sea water b. tomato juice c. gasoline d. milk What type of mixtures are these? Also, what do we classify fire as (solid, liquid, gas)? Any help...

The question reads: The optical rotation of pure pencicillin G is +206 degrees. A sample of pencillin G was found to have an optical rotation of +103 degrees. Calculate the enantiomeric excess (ee) in the mixture. I did so by: 103/203 x 100 = 50% Here is where I am lost: Next...