Try AgainYour answer is incorrect.• Part 1: Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations.• Part 2: Your answer is correct. Warning: you must write a decimal point in numbers with measurement uncertainty, even if there are no decimal places to show.A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 1020kg.Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.What is the mass of 1 mole of raindrops?30.0 x 10?How many moles of raindrops are in the Pacific Ocean?24

Answered: Image /qna-images/answer/ce4c36a7-efff-42ba-a430-f19408b9361a.jpg

A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 1040 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of raindrops? 30.0 × 101, How many moles of raindrops are in the Pacific Ocean? 24

A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 1040 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of raindrops? 30.0 × 101, How many moles of raindrops are in the Pacific Ocean? 24

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section1.5: Measurements, Units, And Calculations

Problem 1.5E

See similar textbooks

Similar questions

In lab you report a measured volume of 128.7 mL of water. Using significant figures as a measure of the error, what range of answers does your reported volume imply? Explain.
Although your textbook lists (he rules for converting an ordinary number to scientific notation, oftentimes students remember such rules better ¡f they put them into their own words. Pretend you are helping your 12-year-old niece with her math homework, and write a paragraph explaining to her how to convert the ordinary number 2421 to scientific notation.
According to the Official Rules of Baseball, a baseball must have a circumference not more than 9.25 in or less than 9.00 in and a mass not more than 5.25 oz or less than 5.00 oz. What range of densities can a baseball be expected to have? Express this range as a single number with an accompanying uncertainty limit.
Perform the following mathematical operations, and express the result to the correct number of significant figures. a. 2.5263.1+0.4700.623+80.7050.4326 b. (6.404 2.91)/(18.7 - 17.1) c. 6.071 105 - 8.2 106 - 0.521 104 d. (3.8 1012 + 4.0 1013)/(4 1012 + 6.3 10l3) e. 9.5+4.1+2.8+3.1754 (Assume that this operation is taking the average of four numbers. Thus 4 in the denominator is exact.) f. 8.9258.9058.925100 (This type of calculation is done many times in calculating a percentage error. Assume that this example is such a calculation; thus 100 can be considered to be an exact number.)
When you are doing addition and subtraction, my chemistry text tells me to round to the least number of decimal places. It also tells me when rounding to use the rule that if its 5 or more, to round up.I have a problem that tells me to solve 0.881+132.1-12.02. The full answer I get is 120.961.Since I need at least one decimal place, should I keep it as 120.9 or round up to 121.0?
A sample of gold alloy has a mass of 9.3 kg. It is determined that 0.6 kg of the alloy is actually made up of copper and zinc, with the remainder being gold. Calculate the percentage of this gold in the alloy? Express your answer to the nearest percentage (nearest ones place). Hint: calculate the mass in grams of the gold in the alloy, divide by the whole mass of the alloy, and multiply by 100%. Round your answer to two significant figures. (I had to alter the wording of this question since it wasn't calculating significant figures properly, so if you got it wrong because of significant figures you can assume you probably actually got it correct.)
Please show work step by step B.1 Multiplication and Division Perform the following multiplication and division calculations. Give a final answer with the correct number of significant figures: 0.1184X 8.00X 0.0345? (42.4)(15.6)/ 1.265 (35.56)(1.45)/(4.8)(0.56) 13.45 mL + 0.4552mL ? 145.5 mL+ 86.58m +1045m ? 245.625g -80.2g? 4. 62cm - 0.885 cm?
A volumetric flask that is to be used to measure volume is supposed to be marked at 10.00 ml but is actually marked at 9.95 ml. This error affects its precision. True or false? please explain
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
part A: Sort the following numbers according to whether they should be rounded up or down when rounding to the nearest tenth (the first digit after the decimal). 3.1760, 4.319, 19.47, 5.82, 66.9214, 8878.2010, 7.084, 124.76 part B: Drag the answers that have been correctly rounded to the appropriate number of significant figures to their place in the table. To avoid rounding errors, start with the unrounded value before conducting each manipulation. Drag the appropriate labels to their respective targets. View Available Hint(s)for Part B Reset Help 14.93 Group 3 14.93 12 Group 1 12 14.92 Group 3 14.92 3.62 Group 4 3.62 14 Group 3 14 3.7 Group 4 3.7 15 Group 3 15 3.6 Group 4 3.6 15.0 Group 3 15.0 3.63 Group 4 3.63 14.9 Group 3 14.9 3.623 Group 4 3.623 12.47 Group 1 12.47 7.97 Group 2 7.97 12.46 Group 1 12.46 7.966 Group 2 7.966 12.4 Group 1 12.4 7.0 Group 2 7.0 13 Group 1 13 7.96 Group 2 7.96 12.5 Group 1 12.5 8.0 Group 2 8.0 3.622 Group 1…
1. All answers to be entered via short answer are in the NUMERICAL FORMAT and presented up to the 3rd decimal place. ADD TRAILING ZEROS if necessary, to complete your answer. NO NEED TO INCLUDE THE UNIT for now.For uniformity of answers, please be guided by the following examples:- If your answer is 5.627594, enter 5.628- If your answer is 3.129934, enter 3.130- If your answer is 8.38, enter 8.380- If your answer is 1.2, enter 1.200- If your answer is 25, enter 25.000- If your answer is less than the value of 1, always place a zero before the decimal point (E.g.: if 0.5, enter 0.500)2. In cases for answers in the EXPONENTIAL FORMAT, please be guided by the following examples and format:- Do not convert your answer to decimal format- If your answer from the calculator is 1.23454566 x 10E-4, enter 1.235x10^-4 (no spaces in between)- If your answer from the calculator is 7.379566 x 10E-5, enter 7.38x10^-5 (no spaces in between)3. The ATOMIC MASSES should be rounded to the NEAREST WHOLE…
1. Which is more accurate and precise when measuring liquids: Erlenmeyer Flask or Beaker? why? 2. How will you compare the accuracy of the graduated cylinder and burette to other liquid containers such as beakers, Elenmeyer Flask, etc? 3. What do you think are the techniques for measuring the mass of solid materials? (using an analytical balance, topload balance, etc.)