Ethyl alcohol has a density of 0.789 g/cm3. What is the mass in pounds of 452 cm3 of ethyl alcohol? You must use dimensional analysis and put your answer in scientific notation with correct units and significant figures. (Please write your answer on a piece of paper. No need to type anything here). Edit View Insert Format Tools Table 12pt v Paragraph v A v ev T?v p O words </> / Question 18 I| Proctorio is sharing your screen. Stop sharing Hide ...

Ethyl alcohol has a density of 0.789 g/cm3. What is the mass in pounds of 452 cm3 of ethyl alcohol? You must use dimensional analysis and put your answer in scientific notation with correct units and significant figures. (Please write your answer on a piece of paper. No need to type anything here). Edit View Insert Format Tools Table 12pt v Paragraph v A v ev T?v p O words </> / Question 18 I| Proctorio is sharing your screen. Stop sharing Hide ...

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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9. 7 9. 10 11 12 13 14 1 A geologist measures the height of a mountain. The height is 3.6089 km. What is the height in meters? Write your answer as a decimal. |x10 Submit Assignme Continue O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessib MacBook Air 00 4- 3. 2.
...Lc ו Colors | Georgia Gw... Beautiful Free Imag... ☺ Make Images, Vide... O MEASUREMENT AND MATTER 1/3 Setting up the math for a one-step quantitative problem Lindsey Suppose you need 6.5 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to tow a car. How would you calculate the mass of this much chain? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. mass of chain = 回山国

E Percent Yield Practice - Abby Ta C Infinite Campus + om/document/d/1PUWBJG1E-gz91BfKaDwbXXC80c3jxjE9fJzg9vbM7eQ/edit?userid%=Datanner30@studentwps.org1806772&share=true ce- Abby Tanner * D O Format Tools Add-ons Help Last edit was seconds ago Normal text Calibri BIUA E E 11 4 I 32.06 In the following reaction, 50.5 g of NO reacted with 51.8 g of O,, and this resulted in a 94.3% yield. What was the actual yield of the NO, in grams? 3. 2 NO + 0, → 2 NO, I. 4. Determine the percent yield for the reaction between 46.4 g of ZnS and 13.3 g of O, if 18.4 g of Zno are produced. 2 Zns + 30, → 2 Zno + 2 so, Chp
The density of a metal is 8.67 g/cm. How many pounds are in 298.86 in of the metal? (You can use the conversion factor approach. Or, you can convert density in g/cm? to Ib/in and then thultiply the result times number of pounds. 2.52 cm 1 inch 454 g = 1 lb Please see 'answers to extra problems' question 10 for hints on how to do this.) You need to write your answer in the box with one number past the decimal. Please don't worry about the sig figs in this case. In these formula problems, the Canvas software will give a variety of questions and each student gets their data with different sig figs. So I just have to choose and sometimes it might seem that one past the decimal is not the correct sig figs. Nonetheless, you have to follow that direction.
(a) (b) 3. For each image below, record the volume with the correct significant figures. a. beaker b. volumetric flask C. buret d. volumetric pipet e. graduated cylinder -50 ml ±5% (c) M (d) (e) 50 ml 50 ml 40 30 -20 No. 1000 10 24 50 mL 25 50 mL 45 40 30 25 20 mL 10
» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…
How many pounds are in 6.32 x 1014 the correct number of sig figs) cg if 1 lb = 454 g (present answer in scientific notation (same format as last assignment - like 2E-4) and round to
About 0.50g of zinc metal was weighed out in a tared weighing cup using a top-loading balance. The mass does not need to be exact, but must be recorded to the nearest centigram. Data Table Mass of Zn HCI Volume Tinitial Tfinal On/Off 0.55 g Tare/zero What should the mass of the zinc be recorded as according to this diagram? O a. 0.55 g b. 0.50 g c. 0.00 g
O MEASUREMENT Setting up a one-step unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. x 10 Pa mm m²) = ? Pa m² (-5.7 × 10³ Explanation Check x10 0.0 X μ olo 3
с YouTube ||| www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IBInznl7HUz21YCCR4NM7yr_IpMriNwx Maps G-7203.jpg O MEASUREMENT Setting up a unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. 3 (0.030 Pa cm Explanation > 3 <= ? kPa m ³).0 = ² Check ロ・ロ X u 0|0 MacBook Air
Q Search ... O Measurement problems.docx Close Activity Word | COL CHEM 1 (BS Chem 1B 2021) problem set 1 (bschem1b) Measurement problems EE Immersive Reader O Open in Desktop App E Print 4 Share ... Chat (a) Tou owe me S11.39 tor 5.7 ID or tomatoes. They were 51.99 a pound. (b) There are 16 oz in 1 lb. (e) There are 7 cars in your driveway. 24. Which of the following statements use exact numbers? (a) The little girl weighs 74.3 lb. (b) The boiling point of ethyl alcohol is 78°C. (c) The square root of 144 is 12. 25. A basketball game at the University of Connecticut's Gampel Pavilion I nautical mile = 6076.12 ft 1 knot =1 nautical mi/h (exactly) (a) How many miles are in one nautical mile? (b) How many meters are in one nautical mile? (c) A ship is traveling at a rate of 22 knots. Express the ship's speed in miles per hour. 37. The unit of land measure in the English system is the acre, while that in the metric system is the hectare. An acre is 4.356 X 10ʻ fº. A hectare is ten…
Convert a speed of 341 cm/s341 cm/s to units of inches per minute. Also, show the unit analysis by dragging components into the unit‑factor slots.