Your book presents all of the formulas you will need to complete this assignment, except for the average molecular speed, shown below. 1. Let’s show the formula for molecular speed at work. Provide a line-by-line solution for the molecular speed of each of the following five gases at 300K: CO, SF6, H2S, Cl2, HBr. […]
A cylindrical underground storage tank with a diameter of 22.0 ft. and a height of 30.0 ft. is filled with gasoline. Given a density of 675 kg/m3, determine the mass of the gas in the tank in both lbm and kg. If the average automobile gas tank holds 25.0 gallons, calculate the number of autos […]
pre-lab Questions 1. What is one difference between qualitative and quantitative analysis? 2. Use Table 1 to determine which metal ion would be identified as the reactant if a reaction with ammonia produces a violet complex? Use scientific reasoning to explain your answer. 3. Use the pH scale to describe an acidic solution and […]
I need your help in solving this post-lab in 14 hours ( Ksp POST-Lab ) I attached the following list in the attachment 1-my lab notebook. 2post-lab questions. 3-two old post lab solutions. 4- Background & Procedure for this lab. It is easy to do this post lab especially with old post lab solutions, but […]
Please I need the attached exercises to be done by a professional who knows chemistry/physics very well. Exercises needs to be written step by step, not only the final answer. needs to be well done and done in a clear matter so that professor understand the all the steps how it being done. thank you,
Calculate the molarity of a solution prepared by dissolving 6.80g of AgNO3 in enough water to make 2.50L of solution….
I have some questions I need help to answer them. the pictures shows that I answered some of the questions, and filed half table one from the lab the rest you can do it, so can you please help me do the rest of the tables and the questions using the pictures and the graphs […]
Chemistry Final Exam Version 12/2016 Name: Student number: Directions: It is important that you provide answers in your own words. Please focus only on information from the text/eBook to create your own solutions. Please do not use direct information from an outside source (especially copying and pasting from an “answer” website). Use of direct […]
Lab. 12, Expt. 11 – Qualitative Analysis of Cations: Lab manual pages: 101-108 Pre-lab questions: page 103 Post-lab questions: 107 Suggested videos: Qualitative Analysis of Cations – virtual lab https://youtu.be/xJFG8tozVzw
Written Assignment 7: Energy and ThermochemistryAnswer all assigned questions and problems, and show all work. 1. Consider this reaction: 2CH3OH(l) + 3O2(g) → 4H2O(l) + 2CO2(g) ∆H = –1452.8 kJ/mol a. Is this reaction endothermic or exothermic? (2 points)b. What is the value of ∆H if the equation is multiplied throughout by 2? (2 […]
