Add or subtract the following measurements. Be sure each answer you enter contains the correct number of significant digits. mt. 0mL. 14.97 ml 9.800 mL = Om. 4.50 ml. +0.827 ml. = 11.827 ml +8.9 ml = Q.P X The symbol of a simple unprefixed S1 unit has been left off of each measurement in the table below. Fill in the missing unit symbols. the volume of water in a tall glass= 0.50 the height of basketball player Earvin "Magic" Johnson the world record for the 100m freestyle swim the height of a tree X 2.06 4490 10.0

Add or subtract the following measurements. Be sure each answer you enter contains the correct number of significant digits. mt. 0mL. 14.97 ml 9.800 mL = Om. 4.50 ml. +0.827 ml. = 11.827 ml +8.9 ml = Q.P X The symbol of a simple unprefixed S1 unit has been left off of each measurement in the table below. Fill in the missing unit symbols. the volume of water in a tall glass= 0.50 the height of basketball player Earvin "Magic" Johnson the world record for the 100m freestyle swim the height of a tree X 2.06 4490 10.0

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

ChapterA: Scientific Notation And Experimental Error

Section: Chapter Questions

Problem 10P

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Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 47 to calculate the following. a. 1 ha = __________ km2 b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers c. A lot with dimensions 120 ft by 75 ft is to be sold for 6500. What is the price per acre? What is the price per hectare?
For these questions, be sure to apply the rules for significant figures. a You are conducting an experiment where you need the volume of a box; you take the length, height, and width measurements and then multiply the values together to find the volume. You report the volume of the box as 0.310 m1. If two of your measurements were 0.7120 m and 0.52145 m, what was the other measurement? b If you were to add the two measurements from the first part of the problem to a third length measurement with the reported result of 1.509 m, what was the value of the third measurement?
One year of world production of gold was 49.6 106 troy ounces. One troy ounce equals 31.10 g. What was the world production of gold in metric tons (106 g) for that year?
A student uses a 100.00 mL volumetric flask to determine the density of a sample of water. The mass of the dry empty flask is determined to be 80.354 g. The flask is filled to the line 5 times with the water sample and the mass of the flask and the water is determined each time giving the 5 masses below. measurement 1: 172.275 g measurement 2: 172.288 g measurement 3: 172.28 g measurement 4: 172.263 g measurement 5: 172.378 g Based on the data given above, what is the average density of the sample in g/mL based on those measurements? Enter your answer with 3 significant figures.
A piece of cardboard is 12.0 cm long, 6.3 cm wide and 0.75 millimeters thick. What is the volume of this piece of cardboard in cubic meters? Enter your answer in the space provided WITHOUT units. Make sure to round your answer to the correct number of significant figures. Please give the number as a normal number, do not use scientific notation. (In example: a normal number = 4300 instead of the number being in scientific notation as = 4.3 X 103)
Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. g 157.0 g ÷ 64.70 mL mL ? mol 2.09476 L X 4.1 L |mol 78.1 X 40. mL mL
What are your sub-dilutions and what is your total dilution if you made the following serial dilution: 0.4/20 x 0.4/20 x 0.2/20? Provide your answer as a decimal number, not in scientific notation. d1 = Round to 2 decimal points. d2 = Round to 2 decimal points. d3 = Round to 2 decimal points. d(total) = Round to 6 decimal points.
How many bottles of wine are needed at a wedding if each person drinks 5 glasses of wine and 50 people attend the wedding. Report your answer in units of bottles (enter the exact answer and don't enter the units in your answer).Each glass is 6 fluid ounces. Each bottle is 750 mL. 1 fluid ounce = 29.57 mL
4b. Convert the mass of the graduated cylinder with water using an analytical balance from grams to tons. 98.5107 g 4 4 13.8 mL 13.8 mL X 4 X 4 5. Beginning with the volume of water measured by the graduated cylinder, convert the volume from milliliters to liters and microliters. 4 4 4 P 4 15 15 L (rounded) HL 14 tons
Five silver coins are added to 454.0 mL of water. The water level rises to a volume of 545.0 mL. What is the volume of the five silver coins? Express your answer with the correct number of significant figures. Write your final answer in the space below. Don't forget to show your calculations for your answer at the end of this quiz. Please include the question number with your calculations so I know which question they are for.
Convert 0.308 L/min to units of microliters per hour. Show the unit analysis by dragging the conversion factors into the unit-factor slots. 0.308 L 1 min 1L X X Answer Bank 1 × 10⁰ µL 60 min 1h = µL h
Density of a Solid Material Water was poured into a 25-ml graduated cylinder (Figure A). Into it was placed a sample of solid material weighing 25.867 g, resulting in the rise of the water (Figure B). Determine the density of the liquid material. Report all quantitative data with the proper number of significant figures. Don't forget to write the units. ml ml. 25 25 20 20 15 15 10 Fill the table. Show your solutions. Weight of the solid material Precision of the graduated cylinder Volume of the water + solid material Volume of the water Volume of the solid material Density of the solid material

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