Experiment #31-Math review problems(a)- How many significant figures are in each of the following numbers?0.0789 ...........2.040..........405.0.............360(b)- Express each of the following with three significant figures.123450000.0025370.7966"Prelab Assignment"620.2(c)- Perform the following operations: (Show Units and correct SF)4.5x10³ cm + 1.6x10² cm =(1.5x10³ mole) [(6.022x1023 molecules) / 1 mole] =1.80x10 g / 2.00x10³ mL =3.00x10106. A 15.00 g metal sphere was found to have a diameter of 1.85 cm. The volume of asphere is V = (4/3)Tr³. Calculate the density of the sphere and assuming that thesphere is made out of one of the elements, aluminum, chromium, iron, lead, titanium orzinc, determine its composition.7. A 55.81 g irregular object made out of one of the metals in #6 raises the water levelin a graduated cylinder from the 17.6 mL level to the 24.7 mL level. What is the densityand identity of the metal?

Since you have posted multiple questions, we will answer only the first question for you. In order…

(a)- How many significant figures are in each of the following numbers? 405.0 0.0789 2.040 360 (b)- Express each of the following with three significant figures. 0.002537 12345000 0.7966 620.2 (c)- Perform the following operations: (Show Units and correct SF) 4.5x10³ cm + 1.6x10² cm =.. (1.5x10³ mole) [(6.022x1023 molecules) / 1 mole] = 1.80x10 g / 2.00x10³ mL = 3.00x10¹⁰

(a)- How many significant figures are in each of the following numbers? 405.0 0.0789 2.040 360 (b)- Express each of the following with three significant figures. 0.002537 12345000 0.7966 620.2 (c)- Perform the following operations: (Show Units and correct SF) 4.5x10³ cm + 1.6x10² cm =.. (1.5x10³ mole) [(6.022x1023 molecules) / 1 mole] = 1.80x10 g / 2.00x10³ mL = 3.00x10¹⁰

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter1: Matter, Measurements, And Calculations

Section: Chapter Questions

Problem 1.75E: Do the following calculations and use the correct number of significant figures in your answers....

See similar textbooks

Similar questions

Please don't provide handwritten solution ..... round your answer to 3 significant figures
In the UV assay of paracetamol you are required to weigh tablet powder “…containing 0.150 g of Paracetamol…”. If the stated content of paracetamol per tablet is 500 mg and the weight of 20 tablets is 11.255 g then the amount of paracetamol tablet powder to be weighed is ....(Answer in grams to 3 decimals)
Perform the following calculation and input the answer expressed to the correct number of significant figures. 45×96÷(1280×260)=? -->Here's my math...just checking this is correct 4320 divided by 332800 = 0.01298077 which has 8 significant figures?
Complete the following using significant digits rules. Report your answers using the correct number of significant digits. A.) 0.368 + 12.24 - 6.742 B.) (30.86) x (15.667) x (0.28) C.) (1600 ÷ 2.24) + 1.185 D.) (1260 + 42.35) ÷ 6
[References] Add this group of measured numbers using the correct number of significant figures in your answer. 45.33, 4.59, 22.854
this was also counted incorrect.. This is the answer I received from Bartleby
Do the following calculations to the correct number of significant figures: a.) 3.8 x 105-8.45 x 104 b.) 0.004 + 0.09879 c.) 1459.3 + 9.77/ 4.32 d.) 432/7.3-28.523
Beaker directions: • Measure the liquid in the beaker. Look at what the lines stand for (these are very limited in their ability to measure). Account for all digits on the instrument and then add 1 estimated digit. • If there is not a line for a place value (1, 2, 3...), then that is the furthest you can estimate! O 48.05 48 48.0 100- 80 60 40 20 beaker B O 48.005
For each of the numbers listed below, determine the number of significant figures. PS: I know its simple but I still do not get it...
Please use correct significant figures. Thank you!
Part B.1: Measuring the volume of a sample of water. Measuring Device Beaker Graduated Cylinder Measured Value 41 mL 38.0 mL Number of Significant Figures | Which measuring device is more precise? The beaker or the graduated cylinder? [ans]
the numbers 1-3 are just sub questions, thank u!!