How much heat is given up when 20g of steam at 100°C is condensed and cooled to 20°C?   A. 1.6 kcal B. 21.6 kcal C. 10.8 kcal D. 12.4 kcal

Q: Convert the heat of neutralization of acetic acid from -52.2 kj/mmol to calories per %3D millimole…

A: The heat of neutralization of acetic acid  = - 52.2 KJ /mmol We know ; 1 Kilo Joules  = 1000 Joules…

Q: Carry out each of the following conversions. a. 50 cal to kcal b. 56 cal to kJ c. 0.96 kJ to cal d.…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: 3. The following equation shows the reaction that occurs when nitroglycerine explodes: 4 C3H509N3 →…

A: We have to predict the nature of reaction.

Q: For the reaction: 2H2O(l) + 137 kcal → 2H2 (g) + O2 (g), how many kcal are needed to form 0.5 moles…

A: Since in the above reaction we can see that 1 mole of O2 is formed when we give 137 Kcal of energy…

Q: What is the kinetic energy in J and cal of a 45-g golf ball moving at 61 m/s?   168 J, 40 cal B.…

A: Given, Mass of golf ball = 45g

Q: The standard unit used in heat measurements .   a. specific volume b. specific heat c. calorie

A: Energy is the capacity to do work. There are different types of energy. Heat is a form of energy. It…

Q: Does toasting bread change the amount of calories in the bread?

A: Toasting of bread: Generally speaking toasting of bread is a chemical change. Addition of heat…

Q: A cheeseburger from a fast food restaurant contains 19 g of fat, 20go carbohydrate, and 28 g of…

A: Answer:- We can determined the energy of cheegburger by find the energy of protein,fat and…

Q: Carry out each of the following conversions. a. 5 kcal to cal b. 2,560 cal to kJ c. 1.22 kJ to cal…

A: First take the original quantity and then the quantity in which it is required to get converted.…

Q: What reaction is involved in the production of soap?* A. Endothermic reaction B. Exothermic…

A: Production of soap involves saponification reaction.

Q: How many calories are required to increase the temperature of 13 g of alcohol from 11 °C to 23 °C?…

A: Heat is required to change the temperature of alcohol from 11 oC to 23 oC.with,Heat = q caloriesmass…

Q: A food contains 50 grams of carbohydrate and has a total 200 kilocalories. What is the percentage of…

A: To calculate the percentage of calories from carbohydrates, you need to consider that carbohydrates…

Q: How much heat in kcal must be added to 0.68 kg of water at room temperature (20°C) to raise its…

A: Given that,Mass of water = 0.68KgWater is at room temperature (T1) = 20 degree CelsiusThe…

Q: Assuming that there are 4 Calories per gram of carbohydrate and protein and 9 Calories in a gram of…

A: Given: Calories per gram of carbohydrate = 4 Calories Calories per gram of protein = 4 Calories…

Q: For the reaction: 2 CH3OH(1) +3 Ozle) → 2 CO2) +4 H2O(1) + 347 kcal 3 a. Is the reaction endothermic…

A: Given reaction is :  2CH3OH (l) + 3O2 (g) ---------> 2CO2 (g) + 4H2O (l)  +347 kcal  (a). Is the…

Q: Certain chemical reactions are endothermic while others are exothermic. In each of the following…

A:

Q: en 34.6 g wat uired? t one: 15.6 calories b. 3.46 calories C. 3460 calories d. 18700 calories e.…

A: The values are provided in questionmass of water m = 34.6 g The heat required to warm the water from…

Q: The complete combustion of propane gas can be represented as a. 2 C3H8 + 7 O2→ 2 C + 2 CO2 + 8 H2O +…

A: Correct choice is option (C)  Pls use 5O2 instead of 10O2 because total Of atom is 10 in the product…

Q: ai yas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3…

A: Joule is the SI unit of work. Joule is defined as the amount of energy transferred to an object when…

Q: A typical diet in the United States provides 15% of the calories from protein, 45% from…

A: 1 kcal means 1000 calories 1g protein = 4 calories  1g carbohydrates = 4 calories  1g fat = 9…

Q: Calculate AH for the reaction C2 H4 (g) + H2 (g) → C2H6 (g). from the following data. C2H4 (g) + 3…

A:

Q: The DIAGRAM below contains FIVE PURE SUBSTANCES with the molecular component shown per substance.…

A: Question 1) substance A  Question 2) Substance A  Question 3) substance B  Question 4) Substance E…

Q: How many calories are required to increase the temperature of 13 g of alcohol from 11°C to 23°C? The…

A:

Q: 4. a. One liquid has a temperature of 140°F and another liquid has a temperature of 60°C. Are the…

A:

Q: Part D Food calories D1 Name of food product Naked juice D2 Mass of food nutrients in one serving…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

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: Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3…

A: The question is based on the concept of physical chemistry. we have to convert the given energy into…

Q: 3. A typical diet in the United States provides 15% of the calories from protein, 45% from…

A: We know that., 1 gram of Fat contain  = 9 Kcal1 gram of proteins contain = 4 Kcal1 gram of…

Q: Convert the following numbers of calories or kilocalories into joules and kilojoules (Remember: kilo…

A: a) 75.2 kCal  = 1 kcal= 4.2 kJ So, 75.2kcal in kJ is, =75.2kcal × 4.2kJ1kcal=315.84 kJ       b) 75.2…

Q: What is specific heat?  How many calories will be absorbed if 25 g of ethyl alcohol are heated so…

A: Specific heat is the quantity of heat required to raise the temperature of the Substance by one…

Q: How many calories are required to change the temperture of 2.0 x 10^3 grams of H20 from 20C to 38C?…

A: This problem can be solved by using the formula :                                  q=mc∆Twhere q is…

Q: The table lists the specific heat values for brick, ethanol, and wood. Specific Heats of Substances…

A:

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.