Use calculator to solve the problems. Write your answer in the correct scientific notation with the correct number of sig fig. Enter numbers only, no units. Enter scientific notation as (number)E(exponent) for example: enter 2 x 104 as 2E-4 (note there are no spaces) (9.4 x 10° mm) (4.5 x 10³ mm) =

Use calculator to solve the problems. Write your answer in the correct scientific notation with the correct number of sig fig. Enter numbers only, no units. Enter scientific notation as (number)E(exponent) for example: enter 2 x 104 as 2E-4 (note there are no spaces) (9.4 x 10° mm) (4.5 x 10³ mm) =

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 37E: Perform the following mathematical operations, and express the result to the correct number of...

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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?
Vanadium metal is added to steel to impart strength. The density of vanadium is 5.96 g/cm3. Express this in SI units (kg/m3).
What is the difference between reporting the quantity nine inches as 9 inches and 9.00 inches?
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.)
Equivalency, conversion factor, solving quantitative problems, analyze, identify, construct, check.
Please answer this question as fast as you can please and tahnk you. I will afterwards write an wonderful review on solving the question. Thank you. Carry out the following calculations, making sure that your answer has the correct number of significant figures and units. 8.69 mL ÷ (15.3 mL - 8.94 mL)
Calculation with Scientific Notation Directions: Read and analyze the problems carefully. Perform the given operation in scientific notation form. Be sure to show your complete solutions. (7.0 x 10-3) - (8.0 x 10-4) 653 ÷ (5.75 x 10-8)
Units: Include units in your answer when instructed Use SI units only in your answers For example, use Pascals not atmospheres. Numbers: Use either the normal form, such as 132 or 132.5, or the exponential form, which represents 132 as 1.32E+2, represents 5 x 104 as 5E+4 or 5E4, or represents 52 x 10-3 as 5 2E-2, unless instructed otherwise. Do not use the form 5 x 104 If your answer is positive, do not place a "+" sign before your answer. QUESTION 2 Calculate u of 1 mole of helium gas at the top of a mountain (7000 m) under the assumption that the air is just He gas with p = 1 atm at 0m and T= 300 K from 0 m to 7000 m. Calculate your answer in eV, but do not include units in your answer. Write your answer in normal form with 2 decimal places (such as X.XX or XX.XX, etc.). QUESTION 3 A gas and liquid coexist in equilibrium. The mass density pliquid = 1000 pgas Choose the correct relationship between the chemical potentials. a. Pliquid = 1000 µgas O b.Mliquid < Hgas C. Pliquid = Hgas…
# Page nanging units: Conversion Factor 3 E D 20 F3 $ If a car travels a distance of 241 km, what is that distance in miles? 4 888 R F % 5 T F5 G 6 MacBook Air F6 & Y H & 7 ◄◄ F7 U J * 00 8 | DII F8 35 K > of 63 ( 9 DD F9 O L ) O F10 P ;
How many square miles are in a farm that occupies (4.07x10^2) acres? 1 acre 43, 560 ft and 1 mile 5280 ft Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations
Supply the missing information in the table. (Given in Blue). Answers in scientific notation should be in this sample format >>> 1.0 x 10-14
For the following calculations and questions, use all applicable rules of sig figs and rounding to determine the answers: 0.53 x 12.3 x 1.321 = 15.1 + 20. + 130 = How many sig figs in the number 0.00040 How many sig figs in the number 500. What is the exact answer to 8.00/4.00 =

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