how many grams of table salt must be added to half a liter of water to raise its boiling point by 15 degrees celsius

Q: how many calories are needed to warm 2.50 kg of water 5.00 C?

A:

Q: What volume of ethanol in milliliters (density = 0.7893 g/cm3) should be added to 427 mL of water in…

A: dddxxx The amount of substance dissolve in a given volume of solution is called density of the…

Q: Water melts at 0°C. A student observes a liquid that melts at 10°C. Which conclusion can the student…

A: Melting point is the temperature at which a solid melts.  It depends on - Composition of molecule…

Q: List the following elements in order from lowest boiling point to highest lowest boiling point…

A: Boiling point of substance depends upon the primary forces as well as secondary forces present in…

Q: Explain why bicycle tires seem more flat in the winter than in summer.

A: There are two reasons for this phenomena:

Q: What is the state of matter if the particles are spread out and have little to no inter-molecular…

A: We know about the state of matter consist of generally solid, gas and liquid.  Among them, solid is…

Q: Meat can be classified as fresh (not frozen) even though it is stored at −1 °C. Why wouldn’t meat…

A: The freezing of meat will happen at the freezing point of the water present in it.

Q: А) 280 K B) The freezing point of water c) 5°C D The freezing point of water and 280 K (E) 30 °F

A:

Q: If you touch the sides of a beaker containing NaOH being dissolved, will it feel warm or cold to…

A: There are two types of reaction involving heat exchange- 1. Exothermic Reactions 2. Endothermic…

Q: Using the molar heat of solution provided in the question above: determine how many g solid sodium…

A: The molar heat of the solution of sodium hydroxide is = -445.1 kJ/mol The volume of the water is =…

Q: 2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes it full at 22°C. How much alcohol…

A: Given: Initial volume of ethyl alcohol = 230ml T1 = 22°C T2 = 100°C ΔT = (100-22)°C = 78°C

Q: A new linear temperature scale, degrees Zunzol (Z), is based on the freezing point and boiling point…

A: Given, Freezing point of zunzol =141.5°C Boiling point of zunzol =-24.8°C Let the freezing point on…

Q: X 6. What state of matter is salt? * 0/1 Salt is a liquid because you can pour it Salt is a liquid…

A: Salt consists of cation and anion held by ionic bond Salt is formed when the hydrogen of an acid is…

Q: kilocalories to freeze 245 g of water

A: Weight of water =245 gm we know heat of fusion of water=80 cal/gm

Q: How many calories are released when 10.0 g of steam condenses?

A: 1 g of water for conversion of steam requires 540 calories.

Q: 4. Container A has 30 grams of water at 85 deg. C. Container B has 25 grams of water at 25 deg C.…

A: Colder water will warm and warmer water will cool down.  The whole mixture contain same temperature.…

Q: Which is colder, dry ice (solid Co2) subliming -78.5°F or ethyl alcohol freezing at 179°?

A: We have two compounds: 1. Dry ice at -78.5oF. subliming. 2. Ethyl alcohol at 179oC freezing.

Q: Explain how the density of water varies from 0⁰C to 10⁰C and explain how this temperature density…

A: Water exhibits an abnormal property whereby it expands instead of contracting when the temperature…

Q: Calculate the heat change in calories for freezing 45 gg of water at 0 ∘C∘C.

A: Heat change in freezing of a substance is equal and opposite of heat change in melting of the…

Q: spread to melt the ice on roads. How many grams of salt per 1000. g of ice is needed to make it…

A: Given: Mass of solvent=1000 g=1.0 kgFreezing point of solution(Tf)=-5 °C To find: Mass of NaCl

Q: Enumerate and discuss the unique properties of water. Give examples for each

A: Water is one of the few natural resources that can be found in sufficient quantities. It is a…

Q: Which of the following liquids has the higher vapor pressure at 25 ∘C? A. Mercury B. Water

A:

Q: 6. Which do you think will freeze faster-diet(zero sugar) or regular soft drink? Justify your…

A: Which will freeze faster Diet or regular soft drink has to be given.

Q: boiling and freezing point

A: In this question we have to explain the science behind cooking cabbage with egg by applying…

Q: PI+ 7,5 kcal EX 8. True or False. The energy required to melt a solid is higher than the energy…

A: Given: Energy required to melt a solid is higher than the energy required to vapourize a liquid.  To…

Q: 5. Is the melting temperature of a substance different from its freezing temperature? Define the…

A: The melting point of a substance is same as that of its freezing point. At this particular…

Q: If a soft-drink bottle whose volume is 1.10 L is completely filled with water and then frozen to…

A: Given - Volume of soft-drink = 1.10 L Temperature after freezing = - 10oC To find - volume of ice…

Q: Is there a difference between the melting point and the freezing point of a pure substance in a…

A: Melting point is the temperature at which a solid substance gets converted into its liquid state at…

Q: How many joules are in 3245 cal?

A:

Q: fishes need oxygen to survive. Goldfish in a crowded aquarium has a better chance of survival in…

A: The reason why goldfish survives in cold water when compared to warm water has to be given.

Q: A new linear temperature scale, degrees Zunzol (Z), is based on the freezing point and boiling point…

A:

Q: What applications does water potentially have based on its chemical and physical properties?

A: Properties of water:(i) Water is a transparent, colourless, odourless and tasteless liquid.(ii) It…

Q: the freezing point in Kelvin and degree fahrenheit

A: Ethylene glycol is major ingredient in the antifreeze  and Freezes at -115.50 C.  So its freezing…

Q: What does the unit "N" (normality) represent? O g/L O mol/L eq/g O mg/mmol O eq/L

A: Normality (N) is defined as the number of mole equivalents per liter of solution.

Q: HClO4(aq)+NaOH(aq)→ Express your answer as a chemical equation. Identify all of the phases in your…

A: The acid react with base to form salt and water , called as neutralization reaction.

Q: how many kcal of heat are released when freezing 5.00 kg of water at 70.0 degrees celsius to ice at…

A: Given: Mass of water = 5.00 Kg = 5000 g. Initial temperature of water = 70.0 oC And final…

Q: A test tube contains 2.63x10-4 m3 of liquid carbon tetrachloride (β = 1240x10-6 (C°)-1) at a…

A: The volume and temperature both are related to each other. This relationship is known as Charles law…

Q: The freezing point of diet soda is higher than the freezing point of regular soda, but lower than…

A: This can be explained by a colligative property named as Depression in Freezing point.  Soda(Diet…

Q: How many grams of sugar (C12H22O11) must dissolve in 10.0kg of water in order to melt the ice on a…

A: Ice melt at 0°C but if you want to melt the ice at -18°C. Then must be depression of freezing point.…

Q: Determine the amount of heat required to raise 10 grams of water 5 degree celcius ?

A: Specific heat capacity of water = 4.18 J/g oC

Q: How many joules of heat are required to heat 25.2 g of ethyl alcohol from the prevailing room…

A: Heat required to change the temperature of a substance depends on the amount and the specific heat…

Q: A student is trying to freeze a solution of urea in the lab where the temperature is around 22°C.…

A: Depression in freezing point of solution = i ×Kf ×m Where Kf = molal freezing point depression…

Q: ind the boiling point of a solution that is made from mixing 6.50 g of vanilin (MW= 153 g/mol) in…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: Give an example of a unique property of water and describe how it came about.

A:

Q: enthalpy

A:

Q: What does it mean when a liquid is flammable?

A: Matter is the substance that occupy space and have mass. States of matter:- Solid Liquid  Gas…

Q: At what temperature does water freeze in kelvin? 100 K O 273 K O OK

A: Freezing Point of Water: The freezing point of any substance describes the point for the liquid to…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.