You wish to prepare 222 grams of 21.0 % Fe(NO3)2. You will need grams of iron(II) nitrate and mL of water. Assume that the density of water is 1.00 g/ ml.

Q: HC H,O, FODHPN Nac,H,O, CO.

A: Balanced equation:

Q: Temperature is a measure of kinetic energy O heat

A: Temperature is a physical parameter which indicates the direction of flow of heat energy…

Q: 3. B heat

A: Product of following reaction can be made by applying appropriate reaction mechanism.

Q: Carlys meal is 834 total kcals. Her meal is 54% carbohydrate, 25% protein, and 21% fat how many…

A: Let the mass of the food be x g. Amount of carbohydrate present in the food = 0.54x g Amount of…

Q: What is the highest hourly vitamin C excretion rate (mg/h) of these four students if the CF is 1.06?…

A: Solution: We have to calculate the hourly vitamin C excretion rate for the four students,

Q: How many joules are there in a 255 calorie snack bar?

A: 1 cal = 4.184 J

Q: In the heating curve below, the heat flow into the sample in the segment will yield AHvap of this…

A: Vaporization is process of a conversion of a liquid substance into the gaseous substance.

Q: 1. The average American household consumes 11,000 kWh per year. a. If there are 3.6 x 10° J in a…

A: Your answers for #(a), (b), and (c) are not correct. The correct answer and solution are shown…

Q: 10. When water is boiling what happens to the temperature of the water?

A: water exist in phases    Solid⇌liquid⇌ gas (vapour) Solid to.liquid  ---> melting(zero degree…

Q: The temperature of a sample of water changes from 1000 to 20°C when the sample absorbs 418 joules of…

A:

Q: Energy that moves particles of matter is: Temperature

A: Need kinetic energy for particles movement.particles colloid with each other then increase in…

Q: 1. Explain why the lines from D to E and B to C are flat. B A, Temperature (°C)

A: A phase diagram is a type of map used in physical chemistry, engineering, mineralogy, and materials…

Q: 5. The table shows the mass of various pollutants produced by recycling aluminium. Pollutant Mass of…

A: Aluminum recycling plant. The table denotes the mass of the pollutant produced in Kilogram when one…

Q: Given:  Weight of silver chloride: 0.750g MW of silver nitrate: 170 g/mol MW of silver chloride: 143…

A: Volume of silver nitrate for standardization can be calculated from the moles of silver chloride…

Q: A quantity of 505 J of heat are added to 11.3 g of water at 28.3 °C. What is the final temperature…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: . What is the equivalent of value of one small calorie in joules? (value only, no need of unit) 2.…

A: 1.The equivalent value of one small calorie in joules is 4.184.

Q: III. CRYSTALLINE STRUCTURES OF IONIC COMPOUNDS A. Sodium chloride 2. 3. radius of sodium Chloride…

A: Given Compound: Sodium Chloride:To determine:1) rc/ra2) Number of Cl- are in contact with one Na+…

Q: OCH3 heat

A:

Q: 1. (9 points) A 15.0 gram piece of metal is heated to 65.0°C and then dropped into 175 grams of…

A: In this thermodynamics problem, we have a 15.0-gram piece of metal that is initially heated to 65.0…

Q: Convertion: 17.8 kcal to cal

A:

Q: If .98 grams of of peanuts are burned in a calorimeter causing the temperature of 150 grams of water…

A:

Q: 8. A 7.0-gram metal sample absorbed 211 J of heat as it was heated from 28°C to 85°C. W containing…

A:

Q: ord=o- conc.NaOH (aq) heat NO₂ NO₂ -H₂O

A: A reaction mechanism is the sequence of elementary steps by which a chemical reaction occurs. A…

Q: 9. A laboratory technician has measured the following data for two liquids that are insoluble in…

A: In this question we have been given two liquids : Liquid A and Liquid B of different masses and…

Q: amount of heat required to raise 1 g of water 1°C    a. BTU b. calorie c. joule d. kJ

A: The mass of water in gram = 1 g The temperature of water  = 1oC

Q: Use the following balanced equation for problems 1-5. 2 As 3 H2 2 AsH3 150. kcal + The reaction is…

A: 2As + 3H2 ——> 2AsH3 + 150 cal  If any reaction absorbs energy then it will be endothermic…

Q: (8) How many kilocalories are lost when 580-g of water cools from 67°C to 22°C?

A:

Q: 2. What is the total number of calories needed to change the temperature of 50.0 grams of water by…

A: q = mc∆T  q is the amount of heat energy needed m is the mass of substance  c is the specific heat…

Q: 3.Convert 2770 calcal to its value in kilojoules. Express your answer to three significant figures…

A:

Q: The heating curve shown was generated by measuring the heat and flow and temperature of a solid as…

A: Heating curve:

Q: A) 2100 calcal to kcalkcal B) 425 JJ to cal   C) 2.4 kJkJ to cal

A: Convert the following - A) 2100 cal to kcal B) 425 J to cal  C) 2.4 kJ to cal

Q: 56.3 Cal to joules.

A:

Q: 10) 4A12(CO3)3 # of molecules: # of elements: Name of element: # of atoms:

A:

Q: which gasoline is less is less expensive: gas that cost $2.41 per gallon, or gas that sells $0.78…

A:

Q: 11. 2. How much energy must be added to 50.0 grams of water to raise its temperature from 40.0°C to…

A: Given, mass of water= 50.0 g initial temperature, T1= 40.0 °C Final temperature, T1= 45.0 °C…

Q: 6. What was the initial temperature if 20.0g of water absorbs 160 calories and warms to 30.0 c? AT

A:

Q: 3. H30 + Y 国 2. HO O

A: The given reaction is an example of a directed aldol condensation reaction.

Q: An economy car uses 1.00gal of gas to go 31miles. What its fuel rating 3 ln km/L?

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.