A graduated cylinder is filled to the 40.00−mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966 g and 159.446 g, respectively. In a separate experiment, a metal ball bearing of mass 18.229 g is placed in the cylinder and the cylinder is again filled to the 40.00−mL mark with the mineral oil. The combined mass of the ball bearing and mineral oil is 50.952 g. Calculate the density and radius of the ball bearing (volume of a sphere of radius r is 4/3 πr3).     ____ g/cm3   _____ cm

Q: A chemistry student weighs out 0.0906 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A:

Q: The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure…

A: According to the Archimedes principle, the volume of any solid submerged in water water is equal to…

Q: Claculate the mass of each sample.

A: Density = mass/volume  So, mass = density × volume

Q: balanced chemical equation in

A: We know the definition of the single displacement, double displacement reaction, decomposition,…

Q: 2. The picture in the introduction shows that the mass of a crucible and lid was determined to be…

A: Given,  The mass of Crucible and lid = 22.1504 g.  The mass of crucible and lid  and hydrate =…

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

A:

Q: If you did not know the identity of the metal in your jar, what experiment might you have done to…

A: To set up an experiment that can help in identifying the metal is pure zinc element.

Q: A sphere of pure iron metal contains 9.57 X 10^24 Fe atoms. What is the radius of the sphere in…

A:

Q: e mass o

A:

Q: If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is…

A: Given   The price of gold is $1,318.61 per troy ounce. The second given price is $1,000,000. The…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

Q: 2. You purchase a rectangular piece of metal that has  dimensions 5.0 X 15.0 X 30.0 mm and mass…

A: A numerical problem based on measurement, which is to be accomplished.

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.032 µmol of magnesium…

A: Concentration of a solution is the ratio of moles of solute to volume of solution.

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A: In this we have to find concentration in g/mL   Given data:  Weight of empty graduated cylinder =…

Q: Given the following data, calculate the percentage of salt in the original mixture.  Include the %…

A: Mass of 400 ml beaker =137.253 g Mass of 400 ml beaker and sand is =139.088 g so Mass of the sand is…

Q: A chemist must dilute 15.5 mL of 5.62 M aqueous sodium chloride (NaCl) solution until the…

A: Given, initial concentration of aqueous solution of NaCl =5.62 Minitial volume of solution =15.5…

Q: 50.0 kg mixture of salt and water is 15.0% (by mass) salt. Give the mass of the salt and water in…

A:

Q: 8.00 grams of sodium sulfate dissolves in water. This is then reacted with 8.00grams of calcium…

A: To determine the product formed when sodium sulfate reacts with calcium chloride ( ), we need to…

Q: An aqueous solution of nickel(II) bromide, NiBr2, is made by dissolving 11.2 grams of nickel(II)…

A: Given-> Weight of nickel(2)bromide = 11.2 gm Volume = 250 ml

Q: if oil is placed in a large body of water, such as a lake or ocean it spreads out to form a surface…

A: Answer: Whenever one shape is converted into another shape, volume of old shape is always equal to…

Q: The radius of a copper (Cu) atom is roughly 1.3 ×10−10 m. How many times can you divide evenly a…

A: The length of the two pieces of copper wire obtained after the final cut (which contain one copper…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Mass/Volume concentration is defined as mass of solute present per mL of solution. Concentration…

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.