Q: How much water would 29.21 grams of an insoluble sample with a density per of 4.35 g/ml displace?
A: Given, the mass of the insoluble sample = 29.21 g The density of the sample = 4.35 g/mL We have to…
Q: Which microscopic representation best represents a solution?
A: A homogeneous mixture in which two or more substances are mixed is termed as a solution. We have…
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A: Salinity: It is term used to define saltiness of solution. A solution is said to be saline if it…
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A: Concentrated ammonia solution is formed by addition of ammonia to the solvent.
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A: Given,
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A: During dilution with water the number of moles before dilution and after dilution remains constant.
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A:
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A: Total Volume = 59ml Volume of alcohol = 49ml
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A: Ans given as follows
Q: freezing
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A: Isopropyl alcohol (rubbing alcohol) is soluble in water as it forms strong hydrogen bonds(H-bonds)…
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A: ANSWER
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A:
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A: Given : Mass of sodium hydroxide i.e NaOH = 40 g And concentration of NaOH = 1 M
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A: Recall the data, M1=1.28M, V1=? M2=3.0M , V2=139 ml
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A: Given:- What is the solute in Carbonated water? So we have to find the Solute (which is present in…
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A: Here we will apply the colligative properties of solute in a solvent.
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A: Water is solvent and alcohol is solute
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A: a. The given mass of dish = 44.317 g The weight of solution = 52.987- 44.317 = 8.67 g
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A: distillation, process involving the conversion of a liquid into vapour that is subsequently…
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Q: A homogeneous mixture composed of a solute and solvent________?
A: Homogeneous means having similar composition or state. Simply, we cancnot differentiate between the…
Q: How much water would 29.21 grams of an insoluble sample with a density of 4.35 g/mL displace ?
A: Given information: Density is 4.35 g/mL Mass is 29.21 grams
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A: Given that, Mass of KH2PO4 sample = 0.0900 g = 90 mg Volume of water = 250 mL = 0.25 L 1)…
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- How do you distinguish (a) chemical properties from physical properties? (b) distillation from filtration? (c) a solute from a solution?Suppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.A solution is defined as a homogeneous mixture. Is a small sample of air a solution? Is the atmosphere a solution?
- (For Exercises 4546) Solutions containing nickel(II) ion are usually bright green in color. When potassium hydroxide is added to such a nickel(II) solution, a pale-green fluffy solid forms and settles out of the solution. The fact that a reaction takes place when potassium hydroxide is added to a solution of nickel(II) ions is an example of a properly. . The fact that a solution of nickel(II) ion is bright green is an example of a property.7. What is a pure substance that is only made of type of atom? A. Element C. Compound D. Elixir B. Suspension What is a molecule that is made of atoms of two or more elements chemically 8. bonded together? A. Heterogeneous B. Heteronuclear C. Homogeneous D. Homonuclear 9. Which best describes heterogeneous mixtures? A. They must always be made of liquid components. No gas or solid components. B. The components must always be mixed or dispersed uniformly within the same physical state. C. The components are always visible and distinguishable from the other components. D. All of the options are correct. 10 Which best describes a homogenous mixture? A. They must always be made of liquid components. No gas or solid components. B. The components must always be mixed or dispersed uniformly within the same physical state. C. The components are always visible and distinguishable from the other components. D. All of the options are correct. 11 Which method would be the most effect to separate…7. A student combines pure NaCl (sodium chloride) with pure DI water. The resulting is an example of: a. homogeneous mixture b. heterogeneous mixture c. pure substance d. suspension
- A homogeneous mixture of two or more substances is called ________ a. a mess. b. a solution. c. an electrolyte. d. a solvent. e. a compound.A. Number and/or color of unknown hydrated salt B. Mass of beaker and cover C. Mass of beaker, cover and hydrated salt before heating D. Mass of beaker, cover and hydrated salt after heating After second 5 minutes of heating After third 5 minutes of heating (if necessary) E. Mass of hydrated salt (line C – line B) F. Mass of anhydrous salt (last line of D-line B) G. Mass of water in hydrated salt (line E-line F) H. percent by mass ofwater in hydrated salt (line G/line E) X 100 I. Molar mass of water #3 30.8135 31.7960 31.6599 31.6575A Kool-aid solution has sugar and flavoring as the solute and water as the solvent. If ice cubes of water are added to a pitcher of Kool-aid, what happens to the sugar molecules as the ice melts. A. There is not enough information given to determine this. B. The sugar molecules will react with the ice cubes. C. The number of sugar molecules will decrease and be further apart. D. The number of sugar molecules will remain the same, but will be further apart.
- 6. When Mr. Calvo heated up the water, the sugar dissolved Name: Date: Class: Pages: 149 to 157 5. To make a solution, particles from one substance so that you cannot see them. into another substance A. dissolves B. drags C. rubs D. condenses A. slower B. faster C. without any change D. into salt 7. A begins and ends with the same kind of matter. A. chemical change B. physical change D. solute C. solvent 8. A begins with one kind of matter and ends with another. B. chemical change B. physical change C. solvent D. solute . when a substance goes through a chemical change, it forms a new substance that has different physical and chemical properties. Chemical changes are often caused by changes in temperature. Which of the following is an example of a chemical change caused by a change in temperature? А. burning wood in a fire melting ice cream С. В. freezing a popsicle boiling water D. 10.Iron becomes rust when it reacts with oxygen. Which of the following is another example o material…1. Iron metal rusts in an atmosphere of moist air. a. Physical Propertyb. Chemical Property 2. Mercury metal is a liquid at room temperature.a. Physical Propertyb. Chemical Property3. Silver salts discolor the skin by reacting with skin protein.a. Physical Propertyb. Chemical Property4. Nickel metal dissolves in acid to produce a light green solutiona. Physical Propertyb. Chemical Property 5. Potassium metal has a melting point of 63°C.a. Physical Propertyb. Chemical Property6. Titanium metal can be drawn into thin wires.a. Physical Propertyb. Chemical Property7. Silver metal shows no sign of reaction when placed in hydrochloric acid.a. Physical Propertyb. Chemical Property8. Copper metal possesses a reddish-brown color.a. Physical Propertyb. Chemical Property9. Beryllium metal, when inhaled in a finely divided form, can produce serious lung disease.a. Physical Propertyb. Chemical PropertyThe carbon combines with the oxygen to form carbon dioxide. A. element; element; compound B. compound; compound; element C. element; compound; mixture D. compound; element; mixture