Specific-Heat-Report-Sheet

property Q M experiment A sample of X is carefully weighed and put inside a sealed calorimeter. Pure oxygen gas is injected into the calorimeter, and the mixture ignited. After all of X has reacted with the oxygen gas, the temperature rise of the calorimeter is measured. From this change in temperature the value of C may be calculated. A sample of solid X is carefully weighed and put inside a sealed flask. Pure hydrogen gas is added to the flask, and the mixture heated until the hydrogen starts being consumed. After hydrogen stops being consumed, the contents of the flask are removed and weighed, and from the increase in weight the value of may be calculated. A small sample of X is put on the pan of a sensitive balance and its weight measured. Next, a magnet is brought near the pan, and the weight is measured again. From the difference of weights in and out of the magnetic field, the value of M may be calculated. physical or chemical? physical chemical (can't decide) physical chemical…

Experiments were done on a certain pure substance X to determine some of its properties. There's a description of each experiment in the table below. In each case, decide whether the property measured was a chemical or physical property of X, if you can. If you don't have enough information to decide, choose can't decide in the third column. physical or chemical? property experiment physical A sample of X is carefully weighed and put inside a sealed calorimeter. The calorimeter is heated electrically, and the amount of heat added determined by monitoring the electrical current used. The temperature of X is carefully measured, and from the temperature change and the amount of heat added the value of H may be calculated. H chemical O (can't decide)

A gram of gasoline produces 45.0 kJ of energy when burned. Gasoline has a density of 0.77 g/mL. How would you calculate the amount of energy produced by burning 22. L of gasoline? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. energy produced = Continue F2 PETE 80 F3 $ F4 % F5 0 X 74 ロ・ロ F6 O MacBook Air & Ś K F7 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center DII FB FO Submit Assi F10

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2. Write down the chemical reaction for the heating of the hydrated form of copper Il sulfate. The triangle is the symbol for "heat added". _Cuso4 • 5H20_> CuSO4 Н20 3. Record the mass of the empty dish:_25.1 grams 4. Record the initial mass of the reactant and the dish: 5. Make observations about the physical changes that the crystals are undergoing. _29.2 grams As the copper sulfate heats up the color changes from blue to white. 6. Record the final mass of the crystals after heating and the dish:_27.7 grams 7. Calculate mass of Copper Sulfate initial mass and final mass in the Data Table. Data Table: Calculations Mass (g) Copper Sulfate initial (make sure to| 29.2 g- 25.1g 4.1g subtract out mass of empty dish) Copper Sulfate final (make sure to 27.7 - 25.1g 2.6g subtract out mass of empty dish) Water 4.1 g- 2.6g 1.5g Analysis/Calculations (Be sure to show all work for each calculation): 1. Find the molar mass of the copper Il sulfate, anhydrous form. 2. Find the molar mass of water.…

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To study heat transfer, a group of students conducted the following experiment. They took two 100 mL water samples at two different temperatures, mixed them together, and recorded the temperatures. Use the data below to answer questions 1- 2. Cup Volume (mL) Temperature (°C) 1 50 12 2 50 40 Mixture of 1 and 2 100 1. Based on the information provided in the table above, in which direction will heat flow between the two water samples when they are mixed? A. Heat will flow from cup 1 to cup 2. В. Heat will flow from cup 2 to cup 1. C. Heat will flow from both cups. D. No heat flow will occur. Illuminate Education TM Inc.

A gram of gasoline produces 45.0 kJ of energy when burned. Gasoline has a density of 0.77 g/mL. How would you calculate the amount of energy produced by burning 14. L of gasoline? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. energy produced x10 X 3

We are doing an experiment on measuring the temperature. We are to measure the temperature of hot water (measure it initially, then wait for 10 minutes then measure again). Additionally, we are to measure the temperature of another water before and after putting ice (measure initially then measure 3 times [every 5 minutes] for 15 minutes). My question are: What law or principles of chemistry could be applied in this experiment? Should we expect the temperature of the hot water to drop? why? Should we expect the temperature of the water to rise or drop after putting the ice? why?

A gram of gasoline produces 45.0 kJ of energy when burned. Gasoline has a density of 0.77 g/mL. How would you calculate the amount of energy produced by burning 36. L of gasoline? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. energy produced = || Submit A Continue

I Review | Constants | Periodic Table The heat capacity of an object indicates how much energy that object can absorb for a given increase in that object's temperature. In a system in which two objects of different temperatures come into contact with one another, the warmer object will cool and the cooler object will warm up until the system is at a single equilibrium temperature. In this problem answers are requested to three significant digits for grading purposes. The true number of significant digits may be more or less. Part A Note the difference between the terms molar heat capacity, which has units of J/(mol · °C), and specific heat, which has units of J/(g.°C). A volume of 80.0 mL of H2O is initially at room temperature (22.00 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperature of the system is 21.50 °C, what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g .°C) specific heat of steel = 0.452 J/(g .°C)…

1.) The specific heat of a certain type of cooking oil is 1.75 cal/(g ·°C). How much heat energy is needed to raise the temperature of 2.75 kg of this oil from 23 ∘C to 191 ∘C? 2.) Round each answer to the correct number of significant figures. 9 + 2.8 - 0.135 + 10.6 = 22.265 My previous answer was 22.3 it was incorrected.