Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8 oC...
Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8 oC and cup #2 contains 74.6 mL of water at 13.5 oC, what is the final temperature, in oC, when the contents of cup #1 are poured into cup #2? Ignore the heat capacity of the cup. Assume that the density of water is 1.00 g/mL.
Homework Answers
Add Answer to:
Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL
of water at 81.8 oC...
6(20 pts) Consider two Styrofoam coffee cups. If cup # 1 contains 102.0 ml. of water at 81.8 C and cup #2 contains 7...
6(20 pts) Consider two Styrofoam coffee cups. If cup # 1 contains 102.0 ml. of water at 81.8 C and cup #2 contains 74.6 ml. of water at 13.5 °C, what is the final temperature, in °C, when the contents of cup #1 are poured into cup # 2? Ignore the heat capacity of the cup. Assume that the density of water is 1.00 g/ml
5. (20 pts) Consider the following reaction OF:(g)+ H20(g) (a) Using this information along with data...
5. (20 pts) Consider the following reaction OF:(g)+ H20(g) (a) Using this information along with data in the appendix of your textbook, calculate AH(OF, (g)) in kJ/mole at 25 C. (b) If 15.0 g of OF (g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 2 HF(g) + O(g) AH (kJ/mole)--318 kJ/mole Consider two Styrofoam coffee cups. If cup # 1 contains 102.0 mL of water at 81.8...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) U...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...
Calculate the in kJ/mole given that the following reaction has a = -1219.26 kJ/mol 2 ClF3(g)...
Calculate the in kJ/mole given that the following reaction has a = -1219.26 kJ/mol 2 ClF3(g) + 2 NH3(g) ----- > N2(g) + 6 HF(g) + Cl2(g) Use data in appendix III (b) The military uses FRH’s (Flameless ration heaters) to heat MRE’s (meals ready to eat). (Heat of formation of Mg( OH)2(Aqua) = -926.8 kJ/mole One of the reactions used in an FRH is Mg(s) + 2 H2O(l) ------ > Mg(OH)2(aq) + H2(g) Using data in Appendix III...
< Question 9 of 10 ) A coffee cup calorimeter contains 161.10 g of water at...
< Question 9 of 10 ) A coffee cup calorimeter contains 161.10 g of water at 24.05 °C. A 68.454 g piece of iron is heated to 95.44 °C. The piece of iron is added to the coffee cup caloriemter and the contents reach thermal equilibrium at 26.95 °C. The specific heat capacity of iron is 0.449 and the specific heat capacity of water is 4.184 How much heat, q, is lost by the piece of iron? Giron How much...
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the...
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the laboratory a general chemistry student finds that when 11.13 g of CsBr(s) are dissolved in 114.50 g of water, the temperature of the solution drops from 25.61 to 22.35 °C The heat capacity of the calorimeter (sometimes refered to as the calorimeteγ constant) was determined in a separate...
Mass of Styrofoam cups 4.00 g Mass of Styrofoam cups with water 102.30 g Mass of...
Mass of Styrofoam cups
4.00 g
Mass of Styrofoam cups with water
102.30 g
Mass of Water
98.3
Initial Temperature of water
22.0 oC
Final Temperature
11.4 oC
Mass of Styrofoam cups with water plus ice
113.60 g
Mass of Iced Added
11.3 g
1. Ice at -10 °C is heated until it becomes liquid water at 10°C. Which heating curve below represents this process? 10| و (2) T T ( °C او ( T (°C) 0 -10 سے ان کا -10...
In a coffee cup calorimeter, 50.0 mL of 1.5 M NaOH and 60.0 mL of 1.4...
In a coffee cup calorimeter, 50.0 mL of 1.5 M NaOH and 60.0 mL of 1.4 M HCl are mixed at 25.0oC. After the reaction, the temperature is 34.1 oC. Assuming all solutions have a density of 1.00 g/cm3 and a specific heat capacity of 4.18 J/oC g, what is the enthalpy change (kJ) for the reaction?
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
In a coffee cup calorimeter, 100.0 mL of 1.00 M NaOH and 200.0 mL of 0.80...
In a coffee cup calorimeter, 100.0 mL of 1.00 M NaOH and 200.0 mL of 0.80 M HCl are mixed at 25.0oC. After the reaction, the temperature is 29.5 oC. Assuming all solutions have a density of 1.00 g/cm3 and a specific heat capacity of 4.18 J/oC g, what is the enthalpy change (kJ) for the balanced reaction? HCl(aq) + NaOH(aq) => NaCl(aq) + H2O(l)
6(20 pts) Consider two Styrofoam coffee cups. If cup # 1 contains 102.0 ml. of water at 81.8 C and cup #2 contains 74.6 ml. of water at 13.5 °C, what is the final temperature, in °C, when the contents of cup #1 are poured into cup # 2? Ignore the heat capacity of the cup. Assume that the density of water is 1.00 g/ml
5. (20 pts) Consider the following reaction OF:(g)+ H20(g) (a) Using this information along with data in the appendix of your textbook, calculate AH(OF, (g)) in kJ/mole at 25 C. (b) If 15.0 g of OF (g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 2 HF(g) + O(g) AH (kJ/mole)--318 kJ/mole Consider two Styrofoam coffee cups. If cup # 1 contains 102.0 mL of water at 81.8...
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH.(kJ/mole) -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH;(OF,(8)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups. If cup #1 contains 102.0 mL of water at 81.8°C...
< Question 9 of 10 ) A coffee cup calorimeter contains 161.10 g of water at 24.05 °C. A 68.454 g piece of iron is heated to 95.44 °C. The piece of iron is added to the coffee cup caloriemter and the contents reach thermal equilibrium at 26.95 °C. The specific heat capacity of iron is 0.449 and the specific heat capacity of water is 4.184 How much heat, q, is lost by the piece of iron? Giron How much...
Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of aissolution (dissolving) can be determined using a coffee cup calorimeter. Cardboard or Styrofoam lid In the laboratory a general chemistry student finds that when 11.13 g of CsBr(s) are dissolved in 114.50 g of water, the temperature of the solution drops from 25.61 to 22.35 °C The heat capacity of the calorimeter (sometimes refered to as the calorimeteγ constant) was determined in a separate...
Mass of Styrofoam cups
4.00 g
Mass of Styrofoam cups with water
102.30 g
Mass of Water
98.3
Initial Temperature of water
22.0 oC
Final Temperature
11.4 oC
Mass of Styrofoam cups with water plus ice
113.60 g
Mass of Iced Added
11.3 g
1. Ice at -10 °C is heated until it becomes liquid water at 10°C. Which heating curve below represents this process? 10| و (2) T T ( °C او ( T (°C) 0 -10 سے ان کا -10...
4. A styrofoam-cup calorimeter containing 150 g of water is calibrated by generating 1770 J of heat within it. The temperature increases by 1.67°C. What is the calorimeter constant Ccal (heat capacity of the calorimeter)? c(H20) = 4.184 Jg='K 5. A constant-pressure calorimeter, Where Ccal = 192 JK I. contains 100.0 mL of a 0.200 M aqueous solution of AgNO3. The temperature of the calorimeter and its contents is 22.30°C. Upon addition of 100.0 mL of 0.200 M solution of...
Most questions answered within 3 hours.
-
Myca Corp. has a project with the following cash flows. What is
the value of the...
asked 26 minutes ago -
When an object moves through a fluid, the fluid exerts a viscous
force F on the...
asked 2 hours ago -
Why did the observed chemistry of thallium mislead Mendelev to
place the group 13 element (Tl)...
asked 3 hours ago -
A sine wave signal is displayed on the screen of an
oscilloscope. 6 peak-to-peak divisions are...
asked 6 hours ago -
a
1500 kg car accelerates from 0 to 25 m / s in 21.0s. How much...
asked 7 hours ago -
Calculate the molarity of each of the following solutions:
(a) 30.5 g of ethanol (C2H5OH) in...
asked 7 hours ago -
1 Refer to the build-borrow-or-buy framework as a decision tree
for the Adidas company. Identify a...
asked 7 hours ago -
Problem 2: The Problem of Social Cost. A Rancher and Farmer live
side-by-side to each other....
asked 8 hours ago -
a uniform bar of weight 40N is 4 meter long. weights
on 60N and 100N are...
asked 8 hours ago -
Define Diet counceling? What are the
responsibilities of a counselor?
asked 10 hours ago -
Hey im just confused about how to put the ' A angle n' and ' S...
asked 10 hours ago -
A short essay about the WSJ article on Oreo versus Hydrox.
asked 10 hours ago