Densities-of-Solids-Data

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A pharmaceutical company produces caffeine pills that are each supposed to contain 200 mg of caffeine. A plant that produces thousands of these pills per batch took an SRS of 15 pills from their latest batch to see if they contained the proper amount of caffeine. The sample data had a mean of 200.4 mg of caffeine per pill with a standard deviation of 0.8 mg. The amounts were roughly symmetric with no outliers. Based on this sample, which of the following is a 95% confidence interval for the mean amount of caffeine (in mg) per pill in this batch?

P₁-1. 8568 = P₂= 1.3513 P₁= 1.0282 0.8197 06975 Po= 10 603 3 P₁= 0 5349 P4= Pressure (atm) Ps= V₁-5.0 V₂ = 7.5 V₁ - 10.0 V₁= 12.5 Vs = 15.0 V₁= 17.5 V₁=20.0 Volume (mL) Constant, k Kavg= 1. Is the relationship between the pressure and volume of a confined gas direct or inverse? 2. Calculate k (to 2 decimal places) for the seven data pairs in your data table. Calculate an average. Show your calculations in your lab notebook. Record the answers in the third column of the Summary Data Table. 3. Using P, V, and k, write an equation representing Boyle's law. 4. What would the pressure be if the volume of the syringe was increased to 40.0 mL? Include a calculation in your lab notebook to support your answer. atm 5. What would the pressure be if the volume of the syringe was decreased to 2.5 mL? Include a calculation in your lab notebook to support your answer. atm

1C. 4.0 1D. 88 C4H7O₂Br C9H12O 808 3000 2000 100 3.0 MM PPM 89 2 88 2.0 W

I'm not sure if I'm doing them correctly

PART 3: Table title: unknown salt solution density by graphical method Mass of empty graduated cylinder: 24.110g Volume Mass of TRIAL 1 2 3 4 9.2 21.9 26.9 30.0 gr.cylinder and solution 33.144 48.628 54.618 58.777 True density of solution: Mass of solution 9.224 26.728 27.718 28.777

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100- 8 8 Relative Intensity $ 20- 0- Relative Intensity 10 200- 80- 40- 20- 0- 10 20 30 m/z 20 20 100 $10 Chlorine OR Bromine OR Neither Chlorine OR Bromine OR Neither 90 100 100- Relative Intensity DO- ģ 20- 0 100 80 10 8 Relative Intensity 3 0- 10 40 30 60 15 m/z Chlorine OR Bromine OR Neither 35 40 45 m/z weytekakumpumakija 30 100 110 55 Chlorine OR Bromine OR Neither

15. Please write clearly

4.05 kg + 567.95 g + 100.1 g

2. For this question you'll need to perform calculations for the data listed below. Imagine you performed the same set of measurements as the instructor did in the video using a 10-mL graduated cylinder. Be sure to show your calculations on this sheet. density of water 0.995124 g/ml mass of empty flask mass of flask + water 24.3165 g, 34.3175 g. 44.1982 g. 54.1597 g. 64.1712 g. 74.2704 g. 84.2420 g. 94.6730 g. 103.9727 g. 114.7728 g 15.5552 g (10 runs) a. Calculate the mean volume of water for the graduated cylinder data above. b. Calculate the standard deviation for the volume of water for the graduated cylinder data typed up above on this page. c. Calculate the standard error for the volume of water for the graduated cylinder data typed up above on this page.

Write each of the following numbers in standard scientific notation 97,820 0.08214*10^3

Make a graph of the average mass vs. year. Make sure axes are labeled. Please please answer super fast please answer as fast as possible

Wire Wire 1 0.0404 0,610 Wire 2 0.0195 ? 0.0105 (r) (in) 0.0193 Length(in) 0.0114 0.0136 (lbs) (lbs/in³) ? 0.324 4.42E-4 0.698 The volume of a cylindrical piece of wire can be approximated using V = pi r² L What is the density of Wire 2 in kg/mL? See the next few questions below to help answer this question! Metal Cu-Copper Unknown

Please answer question number 1 correctly with the correct answer. there is a picture of an example of a ''Dimensional analysis Format' below. please write out all work showing the math in dimensional analysis format.   Question 4: How many moles is 3.52 x 10^24 molecular water?

It says I'm still wrong, use dimensional analysis as in the photo for the answer!

Someone invents a new unit of measurement called a musk and defines that 5 musk is equal to exactly 107g. How many musk are in 53.95 g? 5.395x108 musk O 5.395x107 musk 1.079x107 musk O 1.079x10-6 musk O 9.270x10-9 musk

Fill in all empty spaces. (Round the answers to one decimal place)

What is the mass (g) of 10.0 mL cottonseed oil? The density of cottonseed oil is 0.926 g/mL at 20.0C

Predict the products for the following reaction (ignore balancing): O Sn3(PO4)2 (aq) + KNO3(aq) O Sn3(PO4)4 (s) + K (s) + NO₂(g) O No reaction O SnPO4 (s) + KNO3(aq) O Sn3(PO4)2 (s) + KNO3(aq) Consider the combustion of octane (C8H18), given the following unbalanced equation: O 227 g tin(II) nitrate (aq) + potassium phosphate (aq) O 4.54 g O 226 g O 79.8 g O 45.4 g C8H18 + O2 → What is the mass of H₂O (MM = 18.02 g/mol) will be generated by the complete combustion of 159.7 g of octane in excess oxygen? CO₂ + H₂O [unbalanced] 6.6 6.67

I need the answer as soon as possible

93. g/mL * 32. mL = ___ g

A firkin = 40.82 kg (inexact). How many firkin in 76.2 kg? 3110 fir O 1.866 fir 1.87 fir 3.21x10-4 fir 0.5357 fir

0 8 Question 6 Multiply 21.5 x 3.149 and report the answer to correct sigfigs. 67.704 6.83 67.7 67.70 Question 7

11 11 10 10 9 - 0 9 8 8 7 T 7 6 6 5 1 5 ~Br 4 2 4 Alle 3 3 1 2 2 8 1 B 0

Multiply and divide the following measurements