Given a hot cup of coffee, and a warm cup of coffee, which can dissolve more sugar?

Q: What are ohmic substances?

A: Ohm's law gives the relation between voltage, current, and resistance of the circuit. It states that…

Q: How does melting ice change the temperature of the surrounding air?

A: For the ice to melt, it needs to gain energy from the surrounding.

Q: When wax is coated on clothes , they become water proof. Why?

A: When there is no wax, adhesive force between cloth and water molecules is stronger than the cohesive…

Q: Solution X has a pH of 9.5, and

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Q: Which is not an advantage of "Extractive distillation" over "Azeotropic distillation"?

A: In this question we have to compare Extractive Distillation with Azeotropic Distillation. Please…

Q: Why does water vapor in the air condense when the air is chilled?

A: In the condensation process, a substance changes its phase from gas to liquid.   The kinetic energy…

Q: To increase the concentration of a solution, you would O increase the amount of solute O increase…

A:

Q: Compared to a neutral solution (pH=7.0), something with a pH of 6.0 is 10 times as basic only…

A:

Q: What is the only physical difference between heavy water and pure water?

A: Water is the main element of Earth's hydrosphere and essential for the livelihood of a living…

Q: Why is there a need to constantly stir the metal shots during heating?

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Q: Diffusion always drives molecules from higher concentration to lower concentration. Oa. True O b.…

A: The kinetic energy of the molecules results in random motion, causing diffusion. In this random…

Q: "Entrainer" is used in which type of distillation?

A: Given: Entrainer is used in which type of distillation?

Q: Epsom salts (magnesium sulfate) have a solubility of 26.2 grams. If you dissolved 26.0 grams of…

A: SOlution:

Q: A piece of polyaniline impregnated with sulfuric acid is 2 cm long, 1 cm wide, and 100 micrometers…

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Q: Analv ze the following statements and determine if it is correct or wrong. 1. SiCl, is a nonpolar…

A: To determine: Whether the given statements are correct or wrong.

Q: A compound that releases hydroxide ions in solution would most likely have which chemical property?…

A: A compound that releases hydroxide ons in solution would most likely have which chemical property is…

Q: The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this…

A: Solution: Givwn that The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the…

Q: Why hot water bottles are used for fomentation?

A: Hot water has high specific heat capacity. Due to this, the water remains hot for a longer duration.

Q: 2. Calculate the freezing point depression of a solution containing 0.125 mol of a non- electrolyte…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Mangrove bark is extracted by treating the finely ground wood with hot water. The original bark…

A: 100 kg original bark It contains 7 kg moisture, 33kg tannin, 20 kg soluble non-tannin materials, and…

Q: Differentiate between endothermic reactions and exothermic reactions?

A: Endothermic Reactions: A reaction that the system absorbs energy from its surrounding in the form of…

Q: how many atoms of each element is in the molecule 4SrO^-2

A: In stoichiometry of chemical compounds, any number written on the left-hand side with a symbol of an…

Q: an irregularly shaped piece of metal of density 7.80 g/cm^3 weighs 429g when completely immersed…

A: Given : dA=7.80 g/cm3              m=429g            (apparent weight)              dn=1.2 g/cm3 As…

Q: Two neutral molecules

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Q: When fractional distillation can be used?

A: Fractional distillation is used in oil refineries to separate crude oil into useful substances…

Q: Water can be sprayed easily when soap is added to it, Why?

A: Because addition of soap decreases the surface tension of water. The energy for spraying is…

Q: How about the number 4? The total energy stored by the group?

A:

Q: Gold occurs in seawater at an average concentration of 1.1102 ppb. How many liters of seawater…

A: Given- Average concentration of the gold in seawater =1.1×10-2 ppb Density of seawater =1.025 g/mL 1…

Q: An irregularly shaped piece of metal of density 7.8g/cm^3 weighs 429 grams when completely immersed…

A: Given data m=429 gmρ=7.8 gm/cm3

Q: The specific latent heat of vaporization of a particular liquid is 2.0 x 10 Jkg, its relative…

A: Given : Specific latent heat of vaporization, LVH  =  2.0x105J/Kg Relative molecular mass  =  30…

Q: When can you say that a chemical system is a substance or a mixture?

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Q: Why are the temperature and pressure dependent properties in the saturated mixture region?

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Q: If no molecules in a body could escape, would the body have any odor?

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Q: how many grams are in 2.70 x 10^24 molecules of P^4

A:

Q: Find the molarity of a KOH solution if 12ml of 0.3M HCI solution is neutralized by 21ml of KOH…

A: Molarity of HCL is 0.3 M Volume of HCL is V1 = 12 ml = 12 x 10-3 L Volume of KOH is V2 = 21 ml = 21…

Q: Camphor particles do not dance about in water contaminated with oil, Why?

A: Introduction: Surface tension:  It is the shrinking tendency of the liquid surfaces into the minimum…

Q: Is there any difference between the intensive properties of saturated vapor at a given temperature…

A: The properties of a system which is not depend upon the mass of the system are called as intensive…

Q: When the bottle of carbonated soda is submerged in hot water then let cool to room temperature, why…

A: When carbonated soda is submerged in hot water  then it will start to lose carbonation faster than…

Q: Give a reason why soda drinks should be in plastic bottles rather than in aluminum cans?

A: A typical soda drink may contain acids like citric acid which can react with metallic containers and…