Chapter 1, Problem 1.28E

When reading a graduated cylinder, or any analog measuring device, you should estimate the last digit of the measurement. This estimated digit is typically one decimal place beyond the last calibration mark on the measuring device. For example, if a graduated cylinder was marked to the 0.1 mL, your reading should be reported with 2 digits after the decimal. This reflects the fact that the estimated digit is in the hundreths place. Record the volume shown in the graduated cylinder below. (Note: a liquid in a graduated cylinder will form a curved surface called the meniscus. The measurement is taken from the bottom of the meniscus.) not include units when entering your answer. mL. Do 2.

Gallium is a solid metal at room temperature but melts into a liquid in your hand. The melting point of gallium is 85.6 °F. The SI unit for temperature is the kelvin. What is the melting point (temperature) on the Kelvin scale? Express the temperature to one decimal place and include the appropriate units.

One car is traveling at 60.0 miles per hour, another car is traveling at 100.0 kilometers per hour. Determine which car is traveling faster by converting both speeds to feet per second. (There are 5280 feet in a mile. Round your answers to one decimal place after the decimal).

An empty sample bottle that weighs 27.32 g has a capacity of 19.58 mL. A piece of metal is placed inside. The mass of the bottle + metal is 43.64 g. With the metal left inside, the bottle is filled to capacity with water. The combined mass of the bottle, metal, and water is 61.44 g. Assuming that the density of water is 0.9976 g/cm³. Calculate the density of the metal.

chemist measures the volume of the unknown liquid as  893.cm3 and the mass of the unknown liquid as 1.13kg.   Calculate the density of the liquid. Round your answer to 3 significant digits. ⋅gmL−1     Given the data above, is it possible to identify the liquid?   yes     no       If it is possible to identify the liquid, do so.   carbon tetrachloride     acetone     dimethyl sulfoxide     ethanolamine     methyl acetate

the question asks to convert it to Japanese yen, I did so and wasn't sure what the sig figs should come out to be, I figured it to be four sig figs because when finding the mass in grams, we multiply by 10.49 which has four sig figs and I carried it through to the end, reaching 2.1935x105 Japanese Yen. Is this correct in terms of answers AND in terms of significant figures?

The correct value according to Ruler A is 2.2 cm, whereas the correct value according to Ruler B is 2.27 cm. Perform the mathematical operations indicated by the title of each bin using these two values. Round the correct answers to the appropriate number of significant figures or decimal places. Compare the rounded correct answers with the values given and drag the rounded correct answers to the bin that represents the mathematical operation performed. There are also answers that are not rounded to the correct number of significant figures or decimal places. Drag these answers to the bin named "Incorrect rounding." For example, multiply the number 2.2 by 2.27. Round the answer to the appropriate number of significant figures. Drag the correctly rounded answer to the bin labeled "2.2 x 2.27." Drag the incorrect answers from the multiplication operation to the bin named "Incorrect rounding." Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help 14.994…

Finally, sometimes the desired value does not directly match the units given but is derived from the calculation required. For example, a sheet of metal that has a volume of 45.5 cm3 has a width of 14.8 cm and has a length 15.9 cm. What is the thickness (that is, the height) of the metal sheet in millimeters?

Perform the calculation shown. What is the answer rounded to the correct number of significant figures? Include the correct unit. Be Careful!! BE SURE you only include the correct number of significant figures based on this operation as that is what this question is really checking. (3.336x10^8) g divided by (1.1x10^-1) mL Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer x10 units