Question

In: Statistics and Probability

1)Dr. Colibrí studies hummingbirds. Each bird requires approximately 11.47 milliliters of nectar every day to stay...

1)Dr. Colibrí studies hummingbirds. Each bird requires approximately 11.47 milliliters of nectar every day to stay alive. Synthetic nectar solution is made by mixing 20%(vol/vol) sucrose with 80%(vol/vol) water. Sucrose, common table sugar, has a density of 1.59 g/mL.

How many grams of sugar does Dr. Colibri need to keep 3 hummingbirds alive for 59 days?

Assumption:

When mixing 1 part sugar with 4 parts water, the combined volume does not change. e.g. 200 mL of sugar combined with 800 mL water will produce 1000 mL of nectar. This is technically untrue, but it is close enough for our purposes.

2)

Dr. Zinnert is studying coastal plant ecology using remote sensing data. Satalite images enable her to deduce land coverage on coastal barrier islands on the coast of Virginia.

Given the table below, what percent of barrier island is bare earth?

Report your answer to two decimal places and carry out all calculations in a single step using Excel to prevent accruing rounding error.

Ground Cover km2
Trees 2.5
Shrubs 3
Grass 3.9
Bare Earth 2

3)To what volume (in mL) should 7.72 mL of an 9.67 M acetic acid solution be diluted in order to obtain a final solution that is 2.71 M?

4)When 0.07L of a solution containing 1.82M BaF2 is diluted to 0.7L, what is the concentration of BaF2 in the new solution?

Solutions

Expert Solution


Related Solutions

1. Approximately 250,000 kg of coal are burned each day at the Iowa State University Power...
1. Approximately 250,000 kg of coal are burned each day at the Iowa State University Power Plant. The coal is barged up from Kentucky to Davenport and trucked to Ames in semi=s and is a mixture of Kentucky, Illinois and Colorado coal with an average sulfur content of 2.55%. What would be the average daily output of sulfur dioxide (SO2) assuming that 5% of the sulfur content of the coal ends up in the ash (i.e. 5% of S is...
1.A vendor prepares 100.00 hotdogs every day and sells at $18.00 /piece. For each hot dog,...
1.A vendor prepares 100.00 hotdogs every day and sells at $18.00 /piece. For each hot dog, he spends $10.00 in the raw material. Additionally he spends $1.02 for packing each hotdog and monthly $54.00, $21.00, $12.00 as food truck rent, electricity and other expenses respectively. On a particular day in June 114.00 people came wanting the hotdog. Vendor thinks $5.00 per lost sale. Determine vendor’s profit for that day? Assume there are 30 days in the month. 2. A restaurant...
1.If approximately one in every 2500 white individuals in the united states is affected by the...
1.If approximately one in every 2500 white individuals in the united states is affected by the autosomal recessive disease cystic fibrosis, what are the frequencies of both the dominant and recessive alleles in the populations ? If 14% of individuals in a population have the reseccive phenotype (aa), what percentage of the population is heterozygous ? I need this answered with a legibale explanation step by step in a simple manner
A company manufactures 10,000 microwave ovens every period. Each of the ovens requires a timer. The...
A company manufactures 10,000 microwave ovens every period. Each of the ovens requires a timer. The company currently manufactures the 10,000 timers with the following cost: direct materials $40,000, direct labor $50,000, variable overhead $20,000, fixed overhead $60,000 (the fixed overhead is only 50% avoidable if the company stops making timers). An external supplier offers the company to supply the timers for $15 each. What will be the effect on the company's profit if it decides to buy the timers...
Approximately 6.85 left-handed people are killed each day by using an object or machinery designed for...
Approximately 6.85 left-handed people are killed each day by using an object or machinery designed for right-handed people. Let X be the number of left-handed people killed this way in one day. a. What values can X take? Why is this a Poisson situation? What is the parameter? b. What is the probability that exactly 7 left-handed people will be killed using a right-handed object tomorrow? c. What is the expected number of left-handed people killed using a right-handed object...
You are a nurse on a floor with only elderly patients. Every day, each patient tells...
You are a nurse on a floor with only elderly patients. Every day, each patient tells you about how much pain they are in and asks to help them. They want you to inject them with something to end their lives. If the patients die, the beds on that floor would be freed up for other patients. The hospital is at 100 percent capacity. There is no other hospital for 30 miles. Other patients may be not receiving care due...
The Assistant Manager meets with the Manager every day at 2 p.m., and hand delivers each...
The Assistant Manager meets with the Manager every day at 2 p.m., and hand delivers each reviewed complaint form to the Manager and informs the Manager about any complaints that need additional review by the Manager. The rental company’s Manager reviews the complaint form only if the Assistant Manager recommends such a review. This additional review is completed by the Manager by end of the next business day and the Manager’s reviews are shared with the Assistant Manager. (Paragraph 3)....
What budgeting approach requires justification for the inclusion of every activity each year? Briefly describe this...
What budgeting approach requires justification for the inclusion of every activity each year? Briefly describe this method and how it can be effective.
A neighboring city looks identical in every way (except each house in the neighboring city requires...
A neighboring city looks identical in every way (except each house in the neighboring city requires only half the electricity and only ¼ of the water is produced for use compared with the city in the above questions – which sacrifices 1 unit of water for 1 unit of electricity). Use comparative advantage to determine which city will supply water and which will supply electricity. Estimate the price range of electricity in terms of water.
32. Every day, Jorge buys a lottery ticket. Each ticket has a probability of 0.3 of...
32. Every day, Jorge buys a lottery ticket. Each ticket has a probability of 0.3 of winning a prize. After seven days, what is the probability that Jorge has won at least one prize? Round your answer to four decimal places. 26. Charles has seven songs on a playlist. Each song is by a different artist. The artists are Shania Twain, Nick Carter, Aaron Carter, Joey McIntyre, Phil Collins, Shakira, and Michael Jackson. He programs his player to play the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT