I am having a hard time understanding each question, can you please explain...
I am having a hard time understanding each question, can you please explain... MTU all the...
can you answer both questions please. TIA In this lab, you will start off by calculating the number of moles of air molecules inside a flask containing 10 mL of water by cooling the flask down to near 0°C and assuming the vapour pressure of water is negligible at that temperature If the volume of the air inside the flask is 148.2 ml, the gas pressure sensors reads 99.6 kPa and the temperature sensor reads 2.7 °C, how many moles...
i am needing help with question 4 and 5. anything else helps Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
can you please solve all three questions. TIA The boiling point of water at 1 atm is 100°C and the boiling point of ethanol at the same pressure is 78°C. Which one has the higher vapour pressure at a particular temperature? Select one: O They will have the same vapour pressure Ethanol O Water Check In this lab, you will determine the vapour pressure of water or ethanol (P) at various temperatures and use this data to find the enthalpy...
im trying to solve for the remaining but im confused please help this is experiment 25 Calorimetry HNO B. Enthalpy (Heat) of Neutralization for an Acid-Base Reaction H Poting flendar HCI + NaOH uuemliojo Trial 1 Trial 2 1. Volume of acid (mL) 50 - 60 Site 2. Temperature of acid (C) ao 20" 3. Volume of NaOH (ml) 20 4. Temperature of NaOH (C) Trial 1 5. Exact molar concentration of NaOH (mOVL) 6. Maximum temperature from graph (°C)...
#4 please All information needed to complete this worksheet can be found in the pre-lab information and calculations sections of the lab manual. Read this introductory material first Record all values with the correct number of significant figures and units. Place all answers on the line when provided. show calculations for any numerical answers' work must be shown to receive credit. See any 102 TA in the help office before your prelab is due if you have any questions. Each...
i need help on finding the last information im having trouble with creating a graph from the excel spreed sheet if some one could guide me through the steps, please. What should I place in excel to create the graph when I placed the water bath and temp as well as HCI added it gives me seprate lines. Thanks in advance. C. Data Analysis pse of all buret washin You will the titrant heed to provide your data to your...
please help, explain steps I am very confused. thank you very much "" 9900 CU U UUUUTE Exercises: 1. When butane (C4H10) undergoes combustion, 2853.6 kJ of energy is released for every mole of butane consumed. The combustion reaction is as follows: _C4H10(0) + _ 02(g) → __CO2(g) +_ H20(0) AH°rxn = ? a. Balance the equation b. Determine the value for AHºnxn (be careful to make sure the value corresponds to the correct number of moles of C4H10). 2....
Please help me with a) i, a) ii, and b! thank you so much Question 2 Solid Catalyst thene Tex Tube Glass Wool with Ethanol #Hansen Burner Ethene, C2H4(a) (molar mass 28.1 g/mol), may be prepared by the dehydration of ethanol, C2H5OH) (molar mass 46.1 g/mol), using a solid catalyst. A setup for the lab synthesis is shown in the diagram above. The equation for the dehydration reaction is given below. C,H,OH(8) ethanol Catalyst CH_(8) + H2O(g) AH998 - 45.5...
The table filled is the lab run. Please can you use the three informations provided above to answer the empty table Take Density of vinegar = 1.005g/mol concentration of NaOH = 0.1205M Experiment #7. Titration of Vinegar Goals 1. To determine the mass percent of acetic acid in a solution via titration. 2. To master the technique of titration. Introduction Vinegar is a common household item that is found in a number of products from salad dressing to cleaners. Vinegar...
THERES MORE THAN ONE PICTURE. I NEED ALL ANSWERED THANK YOU QUESTION 2 Calculate the pOH of a solution at 25.0°C that contains 2.95 x 10-12 M hydronium ions. 2.95 O 11.53 12.00 O 7.00 2.47 QUESTION 1 An aqueous solution at 25.0°C contains [H') -0,085 M. What is the pH of the solution? O 13.0 O 0.9850 O 1.07 O 1.20 10-13 O -1.07 QUESTION 2 10-12 M hydronium ions. Calculate the pOH of a solution at 25.0°C that...