What would be the difference in precision and accuracy if I chose to use a graduated cylinder instead of a buret? Explain.

Q: What is the smallest mass that we can measure on an analytical balance that has a tolerance of ±0.1…

A: Tolerance of analytical balance = Relative error = 0.1 %An analytical balance is a device that is…

Q: Which statement about a volumetric flask is correct?     Each volumetric flask has several…

A: Given statements: Each volumetric flask has several calibration marks (on the neck of the flask), so…

Q: A researcher would like to determine whether there is any relationship between students’ grades and…

A: To determine whether students who sit in the front of the classroom have significantly different…

Q: Take the mass measurement with nitrogen (28 dalton or atomic mass units per molecule) and the mass…

A:

Q: While creating a piece of art work, a student becomes curious about the ink he is using to create…

A: The ink is a homogenous mixture, as it appears to be uniform throughout.

Q: the density of gallium triiodide, Gal, is 4.15g/cm^3. If the initial volume of water in a graduated…

A: The volume of the water increased after adding the crystal of gallium triiodide can be calculated…

Q: A piece of copper has a volume 300 L. What is the mass of the sample, in units of grams? Fill in…

A: the Red box is filled as shown below:

Q: A student determined the density of a solid to be 2.90, 2.91 and 2.93 g•cm–3. If the actual density…

A: Accuracy is the closeness of the measured value to a standard/true value. While Precision is the…

Q: You want to determine the density of a compound but have only a tiny crystal, and it would be…

A: Given, volume of CHCl3 = 5.50 mL            density of CHCl3 = 1.492 g/mL            volume of CHBr3…

Q: A student performed an analysis of a sample for its calcium content andgot the following results:…

A: The question is based on the concept of analytical chemistry. we have to explain regarding accuracy…

Q: The hydrometer is a device for measuring the density of liquids. The bulb contains lead shot, and…

A:

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A:

Q: A student reported the mass of ten glass beads as 2.507 ± 0.015 g. What should the student report as…

A:

Q: Iron has a density of 7.86 g/cm° (1 cm' = 1 mL). Calculate the volume (in dL) of a piece of iron…

A:

Q: Give an example from which the difference of Accuracy and Precision is described and explain why it…

A: Accuracy is the degree of closeness of measurements to the true value or reference value Precision…

Q: A volumetric flask that is to be used to measure volume is supposed to be marked at 10.00 ml but is…

A: A volumetric flask is a type of laboratory glassware designed to measure a specific volume of liquid…

Q: A student’s percent error for the density of gold was 7% under the accepted value of 19.3 g ml-1.…

A: Answer:-This question is answered by using the simple formula of calculation of percentage error.

Q: A cubic piece of metalmeasures 5.00 cm on each edge. If the metal is nickel, whosedensity is 8.90…

A: The given data contains, volume =5 cm Density =8.90 g/cm3

Q: 6. What is the difference between ACCURACY and PRECISION?

A: Accuracy:The measurement of how close the calculated value to the standard value is said to be…

Q: You want to determine the density of a compound but have only a tiny crystal, and it would be…

A: Given, volume of CHCl3 = 5.50 mL           density of CHCl3 = 1.492 g/mL           volume of CHBr3 =…

Q: Express (7.64x10^5) g in SI base units using scientific notation.

A: For the base quantities like temperature, mass, length, time and etc, the international system of…

Q: A student find an irregular metal object. Student wanted to know the identity of this metal. As a…

A: Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals…

Q: Iron has a density of 7.86 g/cm° (1 cm° = 1 mL). Calculate the volume (in dL) of a piece of iron…

A:

Q: A graduated cylinder is filled to the 40.00−mL mark with a mineral oil. The masses of the cylinder…

A: Density of oil can be determined from experiment 1 as follows,

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A: Density of a substance is given by  Rearranging it becomes and density=

Q: What is the difference between precision and accuracy in analytical chemistry? Give an example from…

A:

Q: Suppose you were measuring out an organic liquid, and some of it is evaporated after you have…

A: The density of the substance is calculated by the relation shown below. Density=massVolume

Q: A student determined in a set of four experiments that the density of magnesium metal was 1.66…

A: The data is given as follows: 1.66 g/mL, 1.65 g/mL, 1.67 g/mL, and 1.67 g/mL Accepted value for…

Q: A student experimentally measured the density of gold as 19.98g/cm^3. A handbook reports a value of…

A: The given information is as follows: The experimentally measured value of density of gold (measured…

Q: If a sample of gold alloy has a mass of 87.7 g and is 78.3% gold by mass, what percentage of the…

A: An alloy of gold which contains gold and any other metals Mass of alloy = 87.7 g  % by mass of gold…

Q: The Calcium content of a banana sample was homogenized and measured. Are the results comparable? Do…

A: Analytical chemistry is the branch of chemistry which deals with determination of constituents of a…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.