2. A pipeline 12 km long is to be designed to deliver water from a river through a pumping statio...

2. A pipeline 12 km long is to be designed to deliver water from a river through a pumping station to the inlet tank of a tre

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Civil Engineering 1 Answer Ala'a Qutaish

Put yourself in the position of a management trainer. You have been asked to make a short present...

Put yourself in the position of a management trainer. You have been asked to make a short presentation to a group of small and medium size organization association at the monthly luncheon. The topic you are to speak on is ‘’How each of you can use Management by Objectives for better planning and control.” What will you tell them and why? (18 marks)

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Supply Chain Management/Operations Management 1 Answer SHAHBAZ SHOUKET

Interactive Session: OrganizationsCan Instacart Deliver?The online grocery store Webvan was perha...

Interactive Session: OrganizationsCan Instacart Deliver?
The online grocery store Webvan was perhaps the most well-known flop of the dot-com boom. Its 2001 failure led many pundits and investors to conclude that the online grocery business model was untenable.

However, Webvan’s downfall was due mainly to pursuing a first-mover advantage strategy. It paid more than $1 billion to build huge distribution warehouses, bought fleets of delivery trucks, and invested heavily in marketing. Then it offered free deliveries on any size order, at virtually any hour, at prices that trumped its brick-and-mortar competitors. This was not a formula for generating profits.

In recent years other companies are testing the waters again for online grocery sales. FreshDirect in New York City has succeeded by combining fresh local produce, organic and kosher items, and custom-prepared meals with standard grocery store fare. Established brick-and-mortar firms including Albertson’s, Safeway and Peapod.com (the online entity for both Stop & Shop and Giant) took over as pure play online firms perished.

The newest entrant, Instacart bypasses the expenses of warehousing and transportation altogether by using a legion of independent contractors and local food retailers. These personal shoppers receive orders via the Instacart smartphone app, fill them from grocery store aisles, and use their own vehicles to deliver them to customers’ doors. Like fellow “sharing economy” firm Uber, Instacart minimizes labor costs by requiring its personal shoppers to pay for their own auto and health insurance and Social Security contributions. Purportedly paid between $15 and $20 an hour, depending on how quickly they can fill and deliver an order, most Instacart shoppers work part-time on flexible schedules.

Instacart co-founder and CEO Apoorva Mehta believes Instacart’s competitive advantage is twofold. First, customers are not limited to a single vendor and can combine items from multiple stores on one order, so product selection is truly customized. (Instacart uses special software that can track inventory across multiple supermarkets.) And since personal shoppers are on call around the clock, customers have to neither order many hours in advance of delivery nor wait for a delivery window. In fact, customers can have their grocery list filled and delivered in less than an hour!

Instacart’s app provides a detailed map of each local establishment including store aisle contents. The customer’s grocery list, compiled using extensive drop-down menus either on the website or in the app, is organized by merchant and aisle to provide maximum order fulfillment efficiency. Inventory is tracked for all of Instacart-affiliated merchants. As a personal shopper skims an aisle, bedecked in a bright green T-shirt flaunting the Instacart logo, items can be selected for different orders placed at different times. The software can also plan delivery routes and predict future customer orders.

iPhone users can connect to the Instacart app from Yummly, the largest recipe search engine in the world, and have the ingredients delivered in time for dinner. Visitors to Food Network websites, with more than half a million recipes, can browse recipes online and then click a button to add ingredients they need to their Instacart shopping cart. The Instacart app is integrated with Google Now cards so that Android users can place orders for either delivery or pickup using a token generated within the app.

Instacart’s core competencies thus dictate its target market: the price-insensitive, convenience shopper. At first, item prices were marked up (20 percent in one sampling) and a $3.99 delivery fee charged. An Amazon Prime–like service called Instacart Express requires a certain volume of business and a $99 yearly fee in exchange for free delivery. One of Webvan’s big mistakes was pursuing a mass-market strategy. It was never going to be able to turn a profit by providing quality and selection at rock-bottom prices—with free delivery to boot. Instacart is instead catering to shoppers who are willing to pay a premium to have both quality and selection.

By mid-2015 Instacart had 200 employees and 4,000 personal shoppers in New York, Los Angeles, San Francisco, San Jose, Washington, DC, Chicago, Boston, Austin, Seattle, Philadelphia, Atlanta, Boulder, Denver, Houston, and Portland, Oregon. It continues to grow. Grocery purveyors, from large chains such as Costco, BJ’s Wholesale Club, Safeway, Kroger, Super Fresh, Trader Joe’s, and Whole Foods to local specialty shops such as Erewhon Organic Grocer & Café in LA, Marczyk Fine Foods in Denver, and Green Zebra in Portland are now welcoming Instacart as a way to expand their customer bases ahead of the full national rollout of Amazon subsidiary Amazon Fresh.

While many analysts predict that matching the bargain basement prices of Amazon and Walmart is unavoidable, Instacart is instead modifying its business model. Partnerships with Petco and Tomlinson’s Pet Supplies in Austin, Texas, hint of additional product areas on the horizon, while Mehta speculates that expansion into general logistics is conceivable.

Many of Instacart’s grocery store partners now set their own prices, paying Instacart a cut of each order. This has freed Instacart of the burden of markups, protected it from the vagaries of variable food prices, and provided a more stable profit structure. Retailers have been willing to pay Instacart in the hope of gaining more business because Instacart enables a single store to serve people across a larger geographic area. Affiliated retailers are reporting gains, although the numbers are small. Nilam Ganenthiran, head of Business Development and Strategy, maintains that different types of agreements have been reached, declining to specify whether partners are outsourcing their e-commerce to Instacart for a monthly fee or are charged per item purchased, per order placed, or per customer serviced.

With national chains achieving just 1 to 2 percent margins on grocery delivery, the Instacart model of layering labor on top of the existing grocery infrastructure is still unproven. According to a Wall Street Journalanalysis, an order of 15 common items such as frozen peas, milk, cereal, and fresh fruit costing about $68 from a San Francisco Safeway store would produce a profit of only $1.50 for Instacart. If the order were smaller by one 28- ounce jar of peanut butter, Instacart would break even, and a smaller order could push it into the red. Without price concessions from participating merchants, can Instacart attract enough customers? And maintain a pay scale that ensures the topnotch customer service demanded by its target market? And still make a profit? And can retailers’ sales gains from Instacart be sustained? Instacart may be a great idea, but it’s a very big bet.


Case Study Questions
Analyze Instacart using the value chain and competitive forces models. What competitive forces does the company have to deal with? What is its value proposition?
Explain how Instacart’s business model works. How does the company generate revenue?
What is the role of information technology in Instacart’s business model?
Is Instacart’s model for selling online groceries viable? Why or why not?

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Supply Chain Management/Operations Management 1 Answer Zidan Baskoro

Report Form Experiment 12 Titration of Vinegar Name: Chandell China Section: 122 Date: Nod 18th, ...

please help with calculations for all

Report Form Experiment 12 Titration of Vinegar Name: Chandell China Section: 122 Date: Nod 18th, 2017 Lab Instructor: Kallas

Page 2 Percentage of acetic acid in vinegar (2 decimal places) MAX M. x 600 x 100 100 See the pre-lab Information for the mea


0.25 is the molarity of NaOH

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Chemistry 1 Answer Mustafa Kent

TITRATION OF VINEGAR LAB REPORT SHOW ALL WORK (ATTACH DATA TABLE Trial 1 Results 1. Calculate the...


TITRATION OF VINEGAR LAB REPORT SHOW ALL WORK (ATTACH DATA TABLE Trial 1 Results 1. Calculate the mass of acetic acid that re




Data from a similar experiment is provided so that you can complete the lab calculations. Trial Trial 2 Trial 3 Mass of vineg

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Chemistry 1 Answer Kill Me

Titration for Acetic Acid in Vinegar – Lab Report Assistant Exercise 1: Determining the Concentra...

Titration for Acetic Acid in Vinegar – Lab Report Assistant

Exercise 1: Determining the Concentration of Acetic Acid

Data Table 1. NaOH Titration Volume

Initial NaOH Volume (mL)

Final NaOH Volume (mL)

Total volume of NaOH used (mL)

Trial 1

5.2

2.3

2.9

Trial 2

6.2

3.9

2.9

Trial 3

7.2

4.9

2.9

Average Volume of NaOH Used (mL) : 2.9

Data Table 2. Concentration of CH3COOH in Vinegar

Average volume of NaOH used (mL)

Concentration CH3COOH in vinegar (mol/L)

% CH3COOH in vinegar  

0.0029

1.74%

Questions:

If the manufacturer of the vinegar used in the experiment stated that the vinegar contained 5.0% acetic acid, what would the percent error between your result and the manufacturer’s statement be? Show your work.

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Chemistry 1 Answer Ghaida Hassan

Titration for Acetic Acid in Vinegar-Lab Report Exercise 1: Determining the Concentration of Acet...

Are my answers correct?

Titration for Acetic Acid in Vinegar-Lab Report Exercise 1: Determining the Concentration of Acetic Acid Data Table 1. NaOH Titration Volume Initial NaOH Volume (mL) 8.59 9.20 9.20 Final NaOH Volume Trial 1 Trial 2 Trial 3 (mL) 0.20 1.00 2.01 Total volume of NaOH used (mL) 8.39 8.20 7.19 Average Volume of NaOH Used (mL): 7.93 Data Table 2. Concentration of CH3COOH in Vinegar Average volume of NaOH Concentration CH3COOH % CH3C00H in vinegar used (mL) in vinegar (mol/L) 7.93 0.793 4.76% If the manufacturer of the vinegar used in the experiment stated that the vinegar contained 5.0% acetic acid, what would the percent error between your result and the manufacturers statement be? Show your calculations. . Given Average volume of NaOH7.93mL Volume of acetic acid 5.0mL Conceptual Plan M1V1 M2V2 M1 M2V2/V1 Percent error((accepted value - experimental value)/accepted value) x 100 Solve 0.5M x 7.93mL 5.0mL 0.793M. . CH3COOH 0.793M Moles of acetic acid (1000mLx5 g/100mL) x 1mol /60.05g 0.833mol Molarity 0.833mol1L 0.833M Percent error-(0.833 M-0.793 M ) / 0.833 M) x 100-4.80 % Percent error = 4.80 %

What challenges would you encounter with the titration if you had used apple cider vinegar or balsamic vinegar as the analyte instead of distilled white vinegar? Explain your answer . Due to balsamic vinegars dark tones, this experiment would be difficult to conduct. The color change would be almost impossible to spot. Diluting the vinegar solution with water would be a benefit, however, if water could not be added, a chemical indicator would have to be used Additionally, white vinegar is a pure vinegar substance, consisting of only acetic acid and water. Balsamic and apple cider vinegar, on the other hand, contain chemicals that would alter the results. How would your results have differed if the tip of the titrator was not filled with NaOH before the initial volume reading was recorded? Explain your answer . If the tip of the titrator was not filled with NaOH, the recording would be inaccurate. Instead of NaOH filling the pipet entirely, air bubbles would be falsely assumed as NaOH. The first 0.5 mL- 1 mL volume would be air How would your results have differed if you had over-titrated (added drops of NaOH to the analyte beyond the stoichiometric equivalence point)? Explain your . An over-titrated solution would lead to inaccurate results due to a high volume of NaOH. There would be an excess volume of NaOH needed to neutralize vinegars acetic acid If a 7.0 mL sample of vinegar was titrated to the stoichiometric equivalence . point with 7.5 mL of 1.5M NaOH, what is the mass percent of CH3COOH in the vinegar sample? Show your calculations. Average volume of NaOH used = 7.93mL Moles of NaOH used = 1.5M x 7.93mL= 11.9mmol Mass of acetic acid in vinegar 11.9mmol x 60.0g/mol/1000 % CH3COOH in vinegar-0.80g x 100/5mL-16% CH3COOH 0.71g Why is it important to do multiple trials of a titration, instead of only one trial? Performing multiple trails of titration assists in reduce random error. There . could issue such as weighing error, incorrect readings, or false calculations. The most accurate answers come from averaging multiple attempts. A student did not read the directions to the experiment properly and mixed up where to place the NaOH solution and the vinegar. He put the vinegar in the titrator and the measured amount of NaOH in the beaker. He then added a drop of the phenolphthalein to the solution in the beaker . in ven a r res The solution is then reversed, going from pink to colorless. This experiment would give its conductor wrong calculations.

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Chemistry 1 Answer hamza syed

Titration of Vinegar,These are the calculations that I did in the lab:Titrant (NaOH) concentratio...

Titration of Vinegar,
These are the calculations that I did in the lab:

Titrant (NaOH) concentration: 0.1 m NaOH
Vinegar volume: 2.0 mL vinegar
Initial buret reading (initial NaOH volume): 0.0 mL
Final buret reading (final NaOH volume): 17.7 mL

Here are the questions:

1. Calculate the moles of NaOH using the volume and molarity of NaOH. Show your work. moles = molarity * volume

2. Since the reaction ratio is 1 to 1, the moles of acetic acid in the vinegar is equal to the moles of NaOH reacted during the titration. Calculate the molarity of the acetic acid in the vinegar. Show your work?
Molarity = moles / volume

3. Calculate the grams of acetic acid in the vinegar. Show your work?

4. Assuming that the density of vinegar is very close to 1.0 g/mL, the 2.0 mL sample of vinegar used in the titration should weigh 2.0 g. Use this to calculate the mass % of acetic acid in the vinegar sample.
mass % = (mass acetic acid / mass vinegar) * 100%

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Chemistry 1 Answer ahmad masoud

Consider the computer output below Two-Sample T-Test and Cl SampleN 1 2 15 20 Mean 54.73 58.64 St...

Consider the computer output below Two-Sample T-Test and Cl SampleN 1 2 15 20 Mean 54.73 58.64 StDev SE Mean 2.13 5.28 0.55 Difference mu (1) - mu (2) Estimate for difference:-3.91 95% upper bound for difference: T-test of difference = 0 (vs <): T-value = -3.00 p-value DF? () Fil in the missing values. Is this a one-sided or a two-sided test? Use lower and upper bounds for the P-value. (b) What are your conclusions if ? = 0.05? What if ? 0.01? c) This test was done assuming that the two population vari- ances were different. Does this seem reasonable? d) Suppose that the hypotheses had been Ho: Hi H2 versus Ho: ?# ?. what would your conclusions be if ? = 0.05?

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STATISTICS 1 Answer Muhammad Shaheer