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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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- 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_forwardin quantitative chemistry experiment error. If the calculated answer is 3.141592... but 3.14 considering significant figure and calculated uncertainty is +-0.002 , then do I need to write answer as 3.140(+-0.002) or 3.142(+-0.002)arrow_forward
- Evaluate, round to correct sig fig, in scientific notaiton, with correct units: 0.00226 g / [0.0005445 cm3 + 1.42×10-5 cm3] =arrow_forwardOption 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_forward
- Density question- If Ethanol has density of 0.79 g/mL, how many liters of ethanol contains 1.50 kg of ethanol?arrow_forwardI 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_forward
- Question: A 795-centigram sample of borax was placed in a certain volume of water at 25 °C. After adding the sample, the graduated cylinder was read at 35 milliliters, where a rise of 2.7 milliliters was observed. 1. What is the weight of sample in grams? Your answer here will be used for the next item(s). 2. What was the initial volume of water in milliliters? 3. What will be the weight of displaced water in grams? Your answer here will be used for the next item(s). 4. What is the specific gravity of the solid? Your answer here will be used for the next item(s). 5. What will be its specific volume?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_forwardProblem 1-2 Convert: (a) 64.0oC to Fahrenheit (b) 47oF to Celsiusarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning