How much heat is given off by 5.0 g of steam at 100oC as it condenses and cools to 20oC? 2.70 kcal   2.80 kcal 2.89 kcal 3.10 kcal

Q: The heat of combustion of cyclopentane, C;H10, is 786.6 kcal/mol. Write a balanced equation for the…

A: Combustion reaction is defined as the reaction in which the hydrocarbon is burnt in the air to form…

Q: ow much heat in kcal must be added to 0.79 kg of water at room temperature (20°C) to raise its…

A: We know that Q = m × c × ∆ T m = mass of water  = 0.79 kg c = specific heat of water = 1 K cal / kg…

Q: Assuming that 50% of the heat is useful, how many Kg of water at 15.0⁰C can be heated to 95.0⁰C by…

A:

Q: Bananas easily ripen due to the high amount of ethylene. How to be creative with fruit storage and…

A: Ripening of the fruit is due to presence of a chemical known as ethylene now we can delay ripening…

Q: Which of the following represents a chemical property of methanol?    Select one: a. It evaporates…

A: Chemical property of a compound describes it's chemical composition .

Q: 314,636.2 Joules is equal to how many calories? 75.2 kcal 75.2 cal 1316440.4 cal 1,316,440.4 kcal

A: 1 cal = 4.184 Joules. Using this unit conversion, we will calculate number of calories in given…

Q: Which statement about their boiling points is TRUE concerning the following compounds? 'N-CH ČH3 H3C…

A: Compounds 1 is secondary amide while compound 2 is tertiary amide.

Q: Part O A semipermeable membrane separates a 4% starch solution and a 2% starch solution.…

A: The movement of the water molecules from their high concentration to the low concentration through…

Q: Three samples labelled A,B, and C possess identical melting points: 99 degrees. When a 75/25 mixture…

A: Solution - According to the question - Given - Three samples labelled A,B, and C possess identical…

Q: One hour of bicycle riding can require 500-900 kcal of energy, depending on the speed, the terrain,…

A: Given : rate of energy consumed = 505 Kcal/hr Mass of fat to lose = 21.0 lbs Energy of 1 g of fat =…

Q: Fat soluble vitamins A, D, E and K are stored in which part of body?

A: Carbohydrates are biomolecules which are composed of certain monomer units, called as…

Q: Part a) What fraction of the hydrogen bonds would be broken at 27 celsius (room temperature) and how…

A: A) At room temperature, the energy available is in form of thermal energy which is equal to kBT…

Q: 15 grams of carbohydrate...   Question 4 options:   a)  Equals 2 life savers   b)  Equals 15 g…

A: Answer - The correct option is (d) Increases blood glucose by 3 mmol/L within 20 minutes.…

Q: At 0 °C and 1.00 atm, as much as 0.70 g of O2 can dissolve in 1 L of water. At 0 °C and 4.00 atm,…

A: Given, mass of O2 dissolve =0.70 gram (at 0 °C , 1.00 atm and 1 L)we are asked to calculate the mass…

Q: Carbohydrates are important in providing "instant" energy foe cells. Another biomolecules called…

A: Calorie can be defined as unit to measure the energy producing value of food. Lipids (fats) has…

Q: I II (a) Both compounds have the same number of carbons and the same melting point. (b) Structure I…

A: Comparison of melting point between saturated and unsaturated fat

Q: Identify which among the two drugs is more water soluble and why? QH HO CH3 CH3 ČH3 ČH3 DRUG #1 DRUG…

A: Water solubility for these two drugs is explained as:

Q: Convert the following: Show your complete solutions   1. Convert 5 x 10⁻⁴ calories to erg…

A: Given : We have to convert 5 x 10-4 cal. to erg. And 0.73 pound-foot/ second square to dyn

Q: how much energy is (kcal) is required to melt 77g of ice at (0.0C) to liquid?

A: Given: The mass of ice=77 g  Tempearature=0 °C The heat of fusion for water  =333.6 J/g

Q: What is one physical property of vitamin C and how is it related to its structure and function?

A: Vitamic C an important  vitamin for the body as it is used for

Q: When should you NOT use simple distillation?     Two liquids with boiling points less than 30 °C…

A: Simple distillation: Distillation is the process of separation of constituents of a liquid mixture…

Q: A 1ounces serving of cream cheese contains 9.7 grams of saturated fat. How much saturated fat is in…

A:

Q: Use the following to answer the questions below: In each of the following multiple-choice questions,…

A: ✓During active transport, substances move against the concentration gradient, from an area of low…

Q: A man is lost in the woods and finds water and shelter but no food. He weighs 175 pounds and has 12%…

A: Given :  Weight of man = 175 pounds  % Body fat = 12%  Calories of body fat burn per day = 2000…

Q: Which of the following statements about molecules A-D is false? HO. OH HO. ОН НО OH HO OH Br Br Br…

A: Enantiomers They are stereoisomers that are non-imposable mirror images. They have identical…

Q: molar heat of vaporization of some unknown compound X at its normal boiling point 1.7 K is 3.2…

A: The question is based on the concept of chemical thermodynamics. We have been given by  molar…

Q: If a person burns an equimolar amount of fatty acid and glucose, how many Calories is liberated by…

A: The most abundant fatty acid in human body is linoleic acid. Balanced combustion equation of Fatty…

Q: Use the following example of a nutrition label answer the questions below. Nutrition Facts 8…

A:

Q: WhiCh is not a butter System? 2 Cacottz) and Ba(oHt2) Na HCO3 and Hi CO3 HF and NaE HCq HŠO Cund…

A: A buffer system is usually a mixture of a weak acid and its conjugate base, or vice versa. Only weak…

Q: Six ounces of skinless chicken contains 40 g of protein, 6 g of fat, and negligible carbohydrates. A…

A: Each gram of protein gives 4 calories on burning and each gram of fat burns to give 9 calories.

Q: You are asked to compound one-hundred 2.5 mL syringes of 2.5% testosterone cream. What quantity of…

A: Since there is confusion of the given volume. I am not clear weather it is 2.5 ml or 102.5 ml so I…

Q: F. `N' `N' HN, Amoxicillin NH2 H H CH3 CH3 HO CO2H Identify the functional groups present in each…

A:

Q: Injecting an arterial fluid which is hypertonic to the moisture level of the body will ___.…

A: Hypertonic solution is one whose concentration of solute is more compared to another solution. so it…

Q: The doctor ordered to give KCl 30 mEq per orem three times a day. How many mL of 10% oral potassium…

A: Given: doctor ordered to give KCl 30 mEq per orem three times a day Concentration of KCl solution =…

Q: 6-Alternative sweeteners that yield energy are called: a. added sugar. b. alternative sweeteners.…

A: Alternative sweeteners provide energy in form of carbohydrates

Q: Part M Six ounces of skinless chicken contains 40 g of protein, 6 g of fat, and negligible…

A: Six ounces of skinless chicken contains 40 g protein, 6 g of fat, and negligible carbohydrate.  Six…

Q: What quantity of aspirin is contained in most over-the-counter aspirin products?

A: Initially salicylic acid was employed in the case of fever and pain. It had antipyretic and…

Q: If the daily allowance for Vitamin C is assumed to be 75.0 mg, how many liters (L) of a 0.002661 M…

A: Given, The daily allowances for Vitamin C is assumed to be 75.0 mg

Q: What is the final temperature when 640 calories are given off (-q) by 40.0 grams of water at 45.0…

A:

Q: Which of the following statements is TRUE for fats and oils?* Fats need more volume of bromine to…

A: Oil composed of mostly unsaturated fatty acid so it will take more amount of bromine.

Q: How many calories does she consume if she snacks on 1/2 cup of chocolate chips a day ? There are 70…

A: Units used for conversion is,1 cup = 16 tablespoonHence, ½ cup = 8 tablespoon

Q: typical aspirin tablet contains 5.00 grains of pure aspirin analgesic compound. The rest of the…

A: Given grains of aspirin has to be converted to grams.

Q: The average American woman self-reports consuming 1.785x10^3 kcal/day. For a 139.0lb woman, express…

A: Given,  The average American women consumes 1.785*103 kcal/day. To convert the units, we must know…

Q: balanced thermochemical equation of nitroglycerin

A: The nitroglycerin is an explosive is in liquid form having the formula C3H5N3O9 .

Q: How many calories will be needed to completely evaporate 5.0 kilograms of water that is 100 oC? 2.7…

A: The latent heat of vaporization of water is 2230 J/g or 533 calories per gram.

Q: There are 230 calories in a 48 g packet of M&M's. How many calories are in a 33.6 g bag?

A:

Q: Which compound has higher solubility in water? A polar compound or a nonpolar compound? A compound…

A: Solubility depends upon the ions interaction.

Q: List the intermolecular attractions that occur betweena water molecule and a glycerol molecule.

A: Water and glycerol, CH2(OH)CH(OH)CH2OH, are miscible in all proportions.

Q: What is the amount of each of following ingredients for a 10-gram preparation of Lassar's Paste?…

A: Lassar's paste is an ointment, which is made up of combination of zinc oxide, salicylic acid, starch…

Q: If a person burns an equimolar amount of fatty acid and glucose, how many Calories is liberated by…

A: Fatty acid (linoleic acid, most abundant fatty acid in human body) combustion equation: C18H32O2+25…

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.