Related questions
Concept explainers
Ethanol has a density of 0.789 g/cm3. What volume of ethanol in mL must be poured into a graduated cylinder to equal 21.9 g? Report your answer in standard notation with appropriate significant figures and do not include units.
Complete the following arithmetic problem and report the answer to the correct number of significant figures. (Report your answer in standard notation.)
0.71 plus 81.8
Rules for significant figure
All non zero integer are significant
Exact number have unlimited number of significant figure
Zero between the non-zero number are significant
Zero before non-zero integer are non significant
Zero after non-zero integer which are not followed by decimal are not significant
Zero after non zero integer which are followed by decimal point are significant
If zero come after non-zero integer and come after decimal point they are significant
While doing addition and subtraction , the answer should have same number of decimal point as that of limiting term. Limiting term is the number which have least decimal place
While doing multiplication and division the answer should have number of significant figure as that of limiting term. Limiting term is number with least number of significant figure
While converting units answer should have same number of significant figure as the number started with.
Step by stepSolved in 2 steps with 1 images
- Change the following measurement to the appropriate SI unit. The final unit required is shown to the right of the answer box. Be sure to use correct significant figures. An automobile engine with a displacement of 4.16×102 in.3 = cm3arrow_forwardWhat is the minimum mass of galena (PbS), a lead ore, from which 90.0 g of pure lead could be extracted? Be sure your answer has a unit symbol, if necessary, and is rounded to 3 significant digits. 0 x10 X Śarrow_forwardPerform the following calculations: a) 14.86 ml + 15.0 ml + 14.980 ml = b) (42.927 g/ml)(9.00 ml) = Round off the answers to the proper significant figures.arrow_forward
- Convert 70.2 miles/hour to m/s Show set-up in dimensional analysis. Express your final answer in the correct unit and number of significant figures. (if your answer is more than 1000, use scientific notation)arrow_forwardCalculate the mass of zinc in the penny.arrow_forwardHow manny cars are there in a long freight train if it takes the entire train 2.00 min to pass a station as it travels 40.0 miles per hour? (Each car is 50.0 ft long). The answer must be in sientific notation with the correct number of significant figures.arrow_forward
- Carry out the following conversions. Report your answers to the correct number of significant figures. (g) 31.8 lb to g (h) 4.013 qt to L (i) 985 cm to inarrow_forwardAdd 4.13 x 104 and 7.4 x 10³ Give the answer in the correct format with the correct number of significant figures. Please express in decimal form, not scientific notation.arrow_forwardplease see attached imagearrow_forward
- 1. A wooden square block is placed on an analytical balance giving a mass of 5.1977 g. The square block has dimensions of 2.00 cm long, 2.00 cm wide, and has a height of 2.00 cm. Calculate the density of the wooden square block in units of g/cm3 to the correct number of significant figures. Thie morbloarrow_forwardAqueous sulfuric acid (H₂SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na₂SO4) and liquid water (H₂O). Suppose 7.85 g of sulfuric acid is mixed with 3.8 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits. D 0x10 X 3arrow_forwardA chemistry student needs 50.0 g of glycerol for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the -3 density of glycerol is 1.26 g.cm Calculate the volume of glycerol the student should pour out. Round your answer to 3 significant digits. 0 mL X Śarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning 
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY