A small hole in the wing of a space shuttle requires a 16.1 cm²patch.Note: Reference the SI prefixes table and Conversion factors for non-SI units table for additional information.Part 1 of 2What is the patch's area in square kilometers (km²)? Round your answer to 3 significant figures.2kmx10Part 2 of 2✗$3.01If the patching material costs NASA, what is the cost of the patch to the nearest cent? Round your answer to 3 significant figures.2inCheck$×10g18ArBSave For LaterSubmit Assignmentlill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

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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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Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). Suppose 26. g of hydrobromic acid is mixed with 5.89 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits. 0g x10 00 X S ? do
Subject: chemistry
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A sunscreen preparation contains 2.50% by mass benzyl salicylate. If a tube contains 4.0 ounces of sunscreen, determine how many kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen. Conversion: 2.205 lb= 1 kg. 16.0 oz = 1 lb
Bud N. Chemist must determine the density of a mineral sample. His four trials yield densities of 5.27 g/cm3, 5.28 g/cm3, 5.27 g/cm3, and 5.29 g/cm3. Bud's calculated average density was 5.28 g/cm3. Independent studies found the correct density to be 4.75 g/cm3. Which of the following statements represents the best analysis of the data? Bud's results have much greater accuracy than precision Bud's results have low accuracy and low precision Bud's results have high accuracy and high precision Bud's results have much greater precision than accuracy
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Gas is sold for $1.299 per liter in Toronto, Canada. Your car needs 10.00 gallons. How much will your credit card be charged in Canadian dollars? (1 gallon = 3.785 L) $49.17 O $52.17 O $67.15 O $36.79
Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). Suppose 39.6 g of hydrobromic acid is mixed with 8.2 g of sodium hydroxide. Calculate the minimum mass of hydrobromic acid that could be left over by the chemical reaction. Round your answer to 2 significant digits. g x10 X Ś
1. In the olden days, US minted pennies were pure copper, but copper got so expensive that a pure copper penny was worth more than I cent. Modern pennies are composed of zinc and coated with copper. A student determines the mass of a penny to be 2.482 g. After making several scratches in a penny, the student puts the penny into hydrochloric acid, where the zinc (but not the copper) reacts with hydrochloric acid via a single replacement reaction. The hydrogen is collected at 25°C over water. The collected gas occupies 0.899 L at a total pressure of 791 mm Hg. A. Calculate the moles of hydrogen produced in the reaction. (Hint: Use the Table 1. to determine the vapor pressure of water and assume that all of the zinc in the penny dissolves.) B. Write a balanced chemical reaction for zinc and hydrochloric acid. C. Use stoichiometry to calculate the mass of zinc in the penny. D. Determine the percent zinc (by mass) in the penny.
CHEMISTRY Calculating Density Density is the compactness of matter. Density describes the quantity of matter (mass) per unit of volume (3-dimensional space). Density is calculated as the mass of the matter divided by volume. The symbol for density is Greek letter rho (p). The units for mass are in grams (g) and the units for volume is cubic centimeter (cm³). It should be noted that 1 cm³ is equal to 1 ml of volume. 1 cm³= 1 ml. The units for density are g/cm³. Part 1 Determine the density of the new liquid materials created in the Secret Density Research Laboratory. Type the value (no units) of the density into the boxes in the density column. Report density to the 2nd number after the decimal. Use a zero to the lef of the decimal for values less than 1.00. Examples: 2.35, 0.75, 1.90 Material name Harrisonite Waltonium Kellese Wheelernone Osborneum Popebrillium Mass (g) 430 590 260 m P=V 620 380 510 Volume (cm³) 537 454 236 364 633 340 Density (g/cm³) SAMSUNG
The US Environmental Protection Agency (EPA) states "Every gallon of gasoline releases about 20 lbs of CO2 into the air." How many pounds of CO2 would you put into the air if you were the only passenger taking a cab traveling 64 miles that got 18 miles per gallon (mpg)? The answer is 71.11 lbs. but how do we get it?
A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 556. g of hydrogen gas is produced. Calculate the number of moles of hydrogen gas produced. Round your answer to 3 significant digits. mol x10 X

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