lab 1 bio

for the first box the options are 1, 2, 3, 4, 5  for the second box the options are 1, 2, 3, 4, 5  for the thrid box the options are 2, 3, 4, 5, 6, 7, 8, 9, 10

CHE 100-Lab 1 - Measurement Background Reference: Openstax - Chemistry, Atoms First, 2e Section 1.4 - measurement units, derived units, density, water displacement method Section 1.5 - measurement uncertainty, number of digits Chemlibre - Basics of GOB Chemistry (Ball) Section 1.5-measurement uncertainty, number of digits Chem Libre - Chemistry for Allied Health (Soult) Section 1.2-measurement uncertainty, number of digits CHE100 Video Tutorials Measurement units, measurement uncertainty and "every digit is certain, except for the last one" rule. Materials Needed: Electronic balance, beakers (10,50,250 mL), graduated cylinder (100 mL), volumetric flask (50 cylinders. mL), water, household item that will sink in water and fit in one of the beakers or graduated Procedure: 1. Water density (different quantities of water) a. Determine the mass (grams) and volume (mL) of a sample of water using each type of glassware below. For the volume measurement, report the values with the correct…

Which instrument would be used to measure the volume of a diamond? 1. graduated cylinder 2.triple-beam balance 3. Celsius thermometer 4. metric ruler

A spherical object has a specific gravity of 3.46 and a radius of 1.42 cm. After this spherical object is placed into 46.4 mL of water, what should the resulting volumne (in ml) be? Type your answer... Previous Next

I need help with these question please

I have to set up my chemistry homework this way as I need to know how to convert 27.6 mm to um and 27.6 mm to Gm. It has to be set up the way the picture shows.

I measured a line that was 8.4 centimeters which is the same as 3.375 inches. How do I calculate the percente relative error?

Student A measures an object and records a value of 1.5 cm. Student B measures the same object and records a value of 1.50 cm. They have both done their measurements correctly. Why do these measurements differ?

If a ruler is marked off into tenths of cm, how accurately should distance measurements be recorded in the lab data? Group of answer choices thousandths there is no correct way to record. tenths of cm hundredths of cm

General Chemistry Laboratory I Lab 1 Significant Figures and Dimensional Analysis Student name PRE-LABORATORY QUESTIONS 1. How many significant figures are in each measurement? (1) 0.0044500 m (2) 5.003 km (4) 1.00 x 10³ s (5) 0.002 mm 2. Define accuracy and precision. 3. Convert 1.567 kilometers to centimeters.ccurate d 4. Convert 3.70 milligrams to kilograms. O Date: Page 1 IN-LABORATORY WORKSHEET 1. Give the number of significant figures in each of the following numbers. (1) 1,278.50 (2) 120,000 (4) 0.0053567 (5) 670 (7) 8.002 (8) 823.012 (10) 2.60 (Prepared by W. Song) (3) 10 dm (6) 10,000 m (3) 90,027.00 (6) 0.00730 (9) 0005789

Depth                          1.2 cm Width                         1.2 cm                 3.Length                      4.4 cm Volume  (show calculation below)

An electric current of 155.0 mA flows for 42.0 minutes. Calculate the amount of electric charge transported.. Be sure your answer has the correct unit symbol and 3 significant digits. 0 x10 μ 0 9 X

Use the Density interactive to place the densities of the objects from highest to lowest. Wood 79.170g scale /279.2mL in water Lead 47.460g scale/204.2mL in water Mystery 37.380g scale/204.2mL in water I placed the higest density to lowest density: Wood Lead  Mystery  It came out incorrect, stating: You do not have the highest density object at the top. Remember that density is the mass per unit volume. To get the volume, you need to subtract the initial volume of the water in the graduated cylinder from the final volume after the object is fully submerged.Note: The inital volume of water is 200.0mL

Specific Gravity question-A urine sample has a density of 1.030 g/mL. What is the specific gravity of the sample?

My Data: 0.033 g/mL Class Data: 0.02904 g/mL 0.0256 g/mL Based on my results (0.033 g/mL), is the class data (0.02904 and 0.0256) precise, accurate, both, or neither

Calculate density of a metal an unknown metal

5. The Handbook of Chemistry and Physics lists the density of a certain liguid to be 07988 g/mL. Fred experimentally finds this liquid to have a density of 0.7914 a/ml The teacher allows up to +/- 0.500% error to make an "A" on the lab. Did Fred make an "A"? Prove your answer,

1) (0.7546 m)(0.89 m) [Select] 2) 143.22 cm² / 13.3 cm = [Select] m² cm

A student is measuring the mass of 20 paper clips using an electronic balance that measures to the thousandths of : balance displays the value for the mass of the paper clips: 20.120 g. gram. The a Which of the values would be acceptable ways to record this mass in a lab notebook? 20 g 20.1 g 20.12 g 20.120 g 20.1200 g

How do I convert this properly?

Accuracy and Precision of Laboratory Glassware Two students measured the density of water three times each. Their results are shown below. Trial Student 1 Student 2 2. 3 0.953 g/mL 0.949 g/mL 0.956 g/mL 1.102 g/mL 1.005 g/mL 0.901 g/mL 8. Calculate the percent error in the measurements for student 1 and student 2. Show your work. 9. Calculate the standard deviation in the measurements for student 1 and then do the same for student 2. Show your work. 10. Which student is more precise? Explain. 11. Which student is more accurate? Explain. 2.

Chapter 1 Item 10 Use appropriate metric prefixes to write the following measurements without use of exponents. 2.3 x 10-10 L O 0.23 µL 2.3 nL 23 ML 0.023 nL 2.3 µL 0.23 nL Submit Request Answer P Pearson Privacy Po Copyright O 2020 Pearson Education Inc. All rights reserved. | Terms of Use 719% Learch F2 F3 F6 F4 F5 F7 F11 F9 F8 F10 24 & 3 * 00

The density of mercury is 13.6 g/cm3. The density of mercury is ________ kg/m3. Group of answer choices

Calculate the percent error of the density of ethanol is measured to be 0.73 g/mL (true value is 0.79 g/mL)

Beaker directions: • Measure the liquid in the beaker. Look at what the lines stand for (these are very limited in their ability to measure). Account for all digits on the instrument and then add 1 estimated digit. • If there is not a line for a place value (1, 2, 3...), then that is the furthest you can estimate! O 48.05 48 48.0 100- 80 60 40 20 beaker B O 48.005

This question requires a file upload. You will need to write your answer paper and take a picture or enter it into an electronic format and upload the file. A Tunner can run a 5.0 kilometer race it a time of 21 minutes n the vacium uf space light travels at a speed of 186 000 miles per second. How many centimeters can light travel in a year? upload a response tile (15MB max) Choose File No file chosen

Pre-Lab Questions (continued) Complete the rules for determining significant figures after mathematic operations. Addition and Subtraction, report the answer to the least: significant figures decimal places (circle one) Multiplication and Division, report the answer to the least: decimal places (circle one) significant figures

I need help understanding how to compute Density and Specific Gravity. Density question- Greg as a blood volume of 5.9 qt. If the density of blood is 1.06 g/mL, what is the mass in grams, of Greg`s blood? Density question- If Ethanol has density of 0.79 g/mL, how many liters of ethanol contains 1.50 kg of ethanol Specific Gravity question-A urine sample has a density of 1.030 g/mL. What is the specific gravity of the sample?

After completing the significant figures lab as outlined in the lab manual, you compare your results with one of your peers who who performed the lab on a different day.  You determine the density to be a different value. Assuming you both performed the lab according to the lab manual and made no errors, what could cause this discrepancy? If you measured slightly different volumes the density could be different. 2. This is not possible. If you both performed the experiment with no errors you should end up with exactly the same result. 3.If the temperature of water differed you could measure a different density 4.If you measured the density in metric units and your friend measured in imperial the density would be different.

A crate of medicine with a density of 2,150 kilograms per cubic meter will be shipped from England to the U.S. What is the crate's density in pounds per cubic foot? First fill in the two blanks on the left side of the equation using two of the ratios. Then write your answer rounded to the nearest hundredth on the right side of the equation. § kg lb ft 3 3 35.3 ft 1 m 2.2 lb 1 kg Ratios: 3 3 1 kg 2.2 lb m 1 m 35.3 ft 2150 kg 1 m 3 O lb ft

Fill up the missing data