The density of a metal is calculated as follows. The weight of 57.4 grams is divided bythe volume 6.2 cm3. Using the approximate rule for significant figures in thiscalculation, the value of the density, in g/cm3, should be reported as:

We have to calculate density considering the Sig figs.

Answered: The density of a metal is calculated as…

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 82E

See similar textbooks

Similar questions

The radius of an atom is on the order of1010 m. What is this radius in centimeters? In inches? In nanometers?
The mass of a glass beaker is known to be 25.1 g. Approximately 5 mL of water areadded, and the mass of the beaker and water is measured on an analytical balanceto be 30.625 g. How many significant figures are there in the mass of the water?
A group of students took turns using a laboratory balanceto weigh the water contained in a beaker. The results theyreported were 111.42 g, 111.67 g, 111.21 g, 135.64 g,111.02 g, 111.29 g, and 111.42 g.(a) Should any of the data be excluded before the average is calculated?(b) From the remaining measurements, calculate the average value of the mass of the water in the beaker.(c) Calculate the standard deviation s and, from it, the 95% confidence limit.
Express the results of the following additions and subtractions to the proper number of significant figures. All of thenumbers are measured quantities.(a) 245.876+ 4.65+ 0.3678 =(b) 798.36 - 1005.7 + 129.652 =(c) 7.98 × 1017 + 6.472 × 1019 =(d) (4.32 × 10-15) - (6.257 × 10-14) - (2.136 × 10-13) =
The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m) to its volume (V). density = (mass)/(volume) d = (m)/(V)Considering that mass and volume are both extensive properties, explain why their ratio, density, is intensive.
To determine the volume of a sphere, you measure its diameter using a ruler an obtain a value of 15.2 mm for the diameter. Using this diameter, you convert the diameter to units of centimeters by dividing the radius by 10 mm/cm and then you divide the diameter by 2 to obtain the radius (r). You then use the equation V = 4/3πr3 to obtain the volume of the sphere. To determine the mass, you measure the mass on a balance and obtain a mass of 20.4538 g. You then calculate the density by dividing the mass by the volume. Determine which of the following density values has the correct number of significant figures. 10 g/cm3 11 g/cm3 11.1 g/cm3 11.12 g/cm3 11.124 g/cm3 11.1236 g/cm3 11.12356 g/cm3
2. Carry out the following operations and express the answer with the appropriate number of significant figures and units: (a) (5.231 mm)(6.1 mm), (b) 72.3 g/1.5 mL, (c) 12.21 g+0.0132 g, and (d) 31.03 g+ 12 mg.
An unbalanced force of 45 N is applied to a mass 7.3 kg. What will be the resulting acceleration in m/s squared
Gold which has a density of 19.32 g/cm^3 is sold by the troy ounce (abbreviated oz t) which is 31.103g what is the volume in cubic centimeters of 0.85 oz t of pure gold
The mass of an iron nail is measured before and after being placed in a beaker of water for 2 days. It is found that 0.059 g of iron (3) oxide (rust) was produced over the 2-day period. What mass of iron in the nail reacted with the water? Assume the nail is pure iron
In determining the density of a rectangular metal bar,a student made the following measurements: length,8.53 cm; width, 2.4 cm; height, 1.0 cm; mass, 52.7064 g.Calculate the density of the metal to the correct numberof significant figures.
Dimensional Analysis is a way of doing numerical "book-keeping" when converting quantities or performing calculations. • When converting quantities from one unit to another, conversion factors are used. Solving with Dimensional Analysis and Multiple Units: If I am in Canada where the price of gas is $1.022 USD·L1, how much will it cost me to fill up my gas tank if I travelled 125 km? • Let's also assume that my car gets an average of 30.0 miles/gallon.

SEE MORE QUESTIONS

Recommended textbooks for you

Introductory Chemistry: An Active Learning Approa…

Chemistry

ISBN:

9781305079250

Author:

Mark S. Cracolice, Ed Peters

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Introductory Chemistry: A Foundation

Chemistry

ISBN:

9781337399425

Author:

Steven S. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Introductory Chemistry: An Active Learning Approa…

Chemistry

ISBN:

9781305079250

Author:

Mark S. Cracolice, Ed Peters

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Introductory Chemistry: A Foundation

Chemistry

ISBN:

9781337399425

Author:

Steven S. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

Principles of Modern Chemistry

Chemistry

ISBN:

9781305079113

Author:

David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

The density of a metal is calculated as follows. The weight of 57.4 grams is divided by the volume 6.2 cm3. Using the approximate rule for significant figures in this