Concept explainers
Practice ProblemBUILD
For each of the following numbers. determine the number of significant figures it contains, rewrite it without using scientific notation, and determine the number of significant figures in the result.
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CHEMISTRY W/CONNECT ACCESS CODE
- Practice excercise 1arrow_forwardWhat is the answer to this equation with the correct number of significant figures? I tried both 0.40 and 0.397. (34.123+2.20)/(98.7654−7.349). I don't understand in what order to apply sig-figs in an addition and division problem.arrow_forwardEvaluate, round to correct sig fig, in scientific notaiton, with correct units: 0.00226 g / [0.0005445 cm3 + 1.42×10-5 cm3] =arrow_forward
- Option Blank 1: (0, 1, 2, 1.5) Option Blank 2: (no, yes)arrow_forwardIf the average mass of a tablet is 0.5 g, how much tablet powder will contain 0.45 g of ibuprofen when the stated content is 400 mg? answer to 4 decimalsarrow_forwardDensity question- If Ethanol has density of 0.79 g/mL, how many liters of ethanol contains 1.50 kg of ethanol?arrow_forward
- I think its either 1 or 2 but im not sure, its difientely not 4 though. I asked this question on bartleby multiple times and both times I got differnt answers please choose the correct answerarrow_forwardQUESTION 17**** My answer was n=3, l=1, ml=-1 and ms=-1/2 From what I know, theres no possible way to calculate ml , so I must be mean't to choose a value that abides by -l to +l. Was my answer correct?arrow_forwardOnly typed explanation otherwise leave it A penny has a mass of 2.50 g and the Moon has a mass of 7.35 × 1022 kg. Use this information to answer the question below. Be sure your answers have the correct number of significant digits. How many moles of pennies have a mass equal to the mass of the Moon?arrow_forward
- Problem 1-2 Convert: (a) 64.0oC to Fahrenheit (b) 47oF to Celsiusarrow_forwardData Trial 1 Trial 2 Mass of empty crucible with lid 26.698g 26.687g Mass of Mg metal, crucible, and lid 27.060g 27.046g Mass of MgO, crucible, and lid 27.291g 27.273g Subtract the mass of the crucible and lid (row 1 in the chart) from the total mass of MgO, crucible, and lid (row 3 in the chart) to find the mass of magnesium oxide for each trial. This is the actual yieldof magnesium oxide for each trial. Trial 1:593g Trial 2:586g (Just write out how you got the actual yields for both trials)arrow_forwardHow to solve question in picture? Choices: A) n=3,l=0, ml=0,ms=1/2 B) n=3,l=1,ml=0,ms=1/2 C) n=2, l=3,ml=0,ms=1/2 D) n=5,l=3, ml=0,ms=1/2arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning