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5. How many grams of 2°N...
I need help with this please! Postlab questions 1. An unknown metal sample weighing 9.25 grams...
I need help with this please!
Postlab questions 1. An unknown metal sample weighing 9.25 grams is heated to 97.8°C in a hot water bath to establish thermal equilibrium. The hot metal sample is quickly transferred to 50.0 grams of water at 24. 5C contained in a Styrofoam "Coffee Cup" calorimeter. Thermal equilibrium temperature of the unknown metal and water mixture is 27.4'c. What is the specific heat of this unknown metal? 2. The final temperature of a mixture of...
10) How many grams of ice do I need to add to the 356 grams of...
10) How many grams of ice do I need to add to the 356 grams of my soda if I wish to lower the temperature of my soda from 21.8°C to 3.9°C. Assume that the specific heat of the soda is 4.172 J/g⋅C°. The specific heat of water is 4.184 J/g⋅C°. The heat capacity of the glass is 56.4 J/C°. The molar enthalpy of fusion (melting) of ice is 6.018 kJ/mol.
Question 1 (1 point) How many kilojoules does it take to heat 254 grams of water...
Question 1 (1 point) How many kilojoules does it take to heat 254 grams of water at 21.70C to 74.90C? the heat capacity of water is 4.184 J/(gʻoC). Your Answer: Answer units Question 2 (2 points) Suppose you had 73.0 ml of 24.0°C water in your calorimeter and you added 43.6 ml of 57.8°C water. If the calorimeter constant were zero, what should the temperature of the resulting solution be? Water has a heat capacity of 4.184 J/(g*°C). Your Answer:...
Hi.can you help me answer these questions.thank you so much for your help.i really need your...
Hi.can you help me answer these questions.thank you so
much for your help.i really need your help.
1 il. A 10 Sample Of Octane 6 C4 H ) is burned in 0 60ml Calorimeter containing 200 grams of water Q+On Initi al temperature Of 15.00°C.After the reaction the final temperature of water is 33.20°C. The heat Capacity of th Colorimeter 18 837 JQ Kl. The specific heat of water is 4.18 4 JGK Calculote the heat of combustion of action...
no need to explain the answer just fill in the boxes QUESTION 7 How many grams...
no need to explain the answer just fill in the boxes
QUESTION 7 How many grams of sodium sulfate will be formed if you start with 10.00 grams of sodium hydroxide and you have an excess of sulfuric acid? How many grams of water will be formed? 2 NaOH + H2S04 --> 2H2O + Na2SO4 QUESTION 8 4p How many grams of lithium nitrate will be needed to make 200.0 grams of lithium sulfate, assuming that you have an adequate...
Question #2 -/1 points How many grams of calcium nitrate need to be dissolved in 75...
Question #2 -/1 points How many grams of calcium nitrate need to be dissolved in 75 mL of water to form a solution that has a freezing point of -3.2 deg C? grams of calcium nitrate Evaluate Question #3 -/1 points What is the freezing point in °C) of a solution of 8.0 g of carbon tetrachloride, CCl4, in 80.0 g of benzene, C6H6. For benzene, Tp = 5.5°C and Kf = 5.12 deg kg mole?? Freezing point of solution...
the date you need is: 2.0 grams of KNO3, the temp was 22.1. extra information that might help if you need it: I added 5 mL of water to the 2.0 g of KNO3. please answer the 3 parts of the question. T...
the date you need is: 2.0 grams of KNO3, the temp was
22.1.
extra information that might help if you need it: I added 5 mL
of water to the 2.0 g of KNO3.
please answer the 3 parts of the question. Thanks.
Grams KNO,Cryst. Temp, °c 22.1 2.0 g Type your calculation for solubility (in grams KNO,/100 grams water) using the data for the 2.0 gram sample. Type your calculation for molality of KNO, (in mol KNO3/kg water) using...
2. 1634 History NOTES IMAGES DISCUSS UNITS STATS HELP PREFERENCES Part Description Answer chk. 164 grams...
2. 1634 History NOTES IMAGES DISCUSS UNITS STATS HELP PREFERENCES Part Description Answer chk. 164 grams of water is initially at a temperature of 65°C. How much ice at -20°C must be added to produce water at a final temperature of O pts. 0% Format 12°C? Assume that no heat is lost to Check the surroundings and that the 1% try penalty container has negligible mass. |(include units with answer) Hints: 0,0 # tries: 0 Show Details
please please answer all question 17. How many JOULES of energy are needed to warm 4.37...
please please answer all question
17. How many JOULES of energy are needed to warm 4.37 g of silver (Ag) from 25.0 c to 27.5 C? The specific heat of silver is 0.24c a. 0.14J b. 2.6 c. 46 J d. 0.022 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Water Cast iron Lead (Pb)...
I need help Consider the following equations: H2(g) + O2(g) → 2H2O(g) 1. How many grams...
I need help
Consider the following equations: H2(g) + O2(g) → 2H2O(g) 1. How many grams of water will be produced if there 5.0 gram of oxygen? 2. How many moles of water will be produced if there are 2.0 moles of hydrogen? 3. You conducted the above experiment in the lab and found that the 100 moles of water are produced, how many grams you actually produced of water? 4. If you correctly done number 3, then it is...
I need help with this please!
Postlab questions 1. An unknown metal sample weighing 9.25 grams is heated to 97.8°C in a hot water bath to establish thermal equilibrium. The hot metal sample is quickly transferred to 50.0 grams of water at 24. 5C contained in a Styrofoam "Coffee Cup" calorimeter. Thermal equilibrium temperature of the unknown metal and water mixture is 27.4'c. What is the specific heat of this unknown metal? 2. The final temperature of a mixture of...
Question 1 (1 point) How many kilojoules does it take to heat 254 grams of water at 21.70C to 74.90C? the heat capacity of water is 4.184 J/(gʻoC). Your Answer: Answer units Question 2 (2 points) Suppose you had 73.0 ml of 24.0°C water in your calorimeter and you added 43.6 ml of 57.8°C water. If the calorimeter constant were zero, what should the temperature of the resulting solution be? Water has a heat capacity of 4.184 J/(g*°C). Your Answer:...
Hi.can you help me answer these questions.thank you so
much for your help.i really need your help.
1 il. A 10 Sample Of Octane 6 C4 H ) is burned in 0 60ml Calorimeter containing 200 grams of water Q+On Initi al temperature Of 15.00°C.After the reaction the final temperature of water is 33.20°C. The heat Capacity of th Colorimeter 18 837 JQ Kl. The specific heat of water is 4.18 4 JGK Calculote the heat of combustion of action...
no need to explain the answer just fill in the boxes
QUESTION 7 How many grams of sodium sulfate will be formed if you start with 10.00 grams of sodium hydroxide and you have an excess of sulfuric acid? How many grams of water will be formed? 2 NaOH + H2S04 --> 2H2O + Na2SO4 QUESTION 8 4p How many grams of lithium nitrate will be needed to make 200.0 grams of lithium sulfate, assuming that you have an adequate...
Question #2 -/1 points How many grams of calcium nitrate need to be dissolved in 75 mL of water to form a solution that has a freezing point of -3.2 deg C? grams of calcium nitrate Evaluate Question #3 -/1 points What is the freezing point in °C) of a solution of 8.0 g of carbon tetrachloride, CCl4, in 80.0 g of benzene, C6H6. For benzene, Tp = 5.5°C and Kf = 5.12 deg kg mole?? Freezing point of solution...
the date you need is: 2.0 grams of KNO3, the temp was
22.1.
extra information that might help if you need it: I added 5 mL
of water to the 2.0 g of KNO3.
please answer the 3 parts of the question. Thanks.
Grams KNO,Cryst. Temp, °c 22.1 2.0 g Type your calculation for solubility (in grams KNO,/100 grams water) using the data for the 2.0 gram sample. Type your calculation for molality of KNO, (in mol KNO3/kg water) using...
2. 1634 History NOTES IMAGES DISCUSS UNITS STATS HELP PREFERENCES Part Description Answer chk. 164 grams of water is initially at a temperature of 65°C. How much ice at -20°C must be added to produce water at a final temperature of O pts. 0% Format 12°C? Assume that no heat is lost to Check the surroundings and that the 1% try penalty container has negligible mass. |(include units with answer) Hints: 0,0 # tries: 0 Show Details
please please answer all question
17. How many JOULES of energy are needed to warm 4.37 g of silver (Ag) from 25.0 c to 27.5 C? The specific heat of silver is 0.24c a. 0.14J b. 2.6 c. 46 J d. 0.022 18. Given the table below of specific heat capacities, which one will experience the SMALLEST increase in temperature if 10.0 J of heat is added to 1.00 g of each of these substances? Water Cast iron Lead (Pb)...
I need help
Consider the following equations: H2(g) + O2(g) → 2H2O(g) 1. How many grams of water will be produced if there 5.0 gram of oxygen? 2. How many moles of water will be produced if there are 2.0 moles of hydrogen? 3. You conducted the above experiment in the lab and found that the 100 moles of water are produced, how many grams you actually produced of water? 4. If you correctly done number 3, then it is...
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