cylindrical bar was found at the bottom of a storage tank of unknown composition. The material had a diameter of 8 mm, a length of 62 cm and a mass of 0.018 kg. What is the density of this material in g/mL? The volume of a cylinder is given by V = πr 2h. Please write only the number part.

Q: A medical doctor gives the order to administer dopamine at a rate of 3.0 mcg/kg⋅min (mcg is the…

A:

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 25.38 g of potassium iodide…

A: Mass of potassium Iodide = 25.38 g Volume of water = 100. mL The concentration is needed in the unit…

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: what is the density of the salt in g/mL?

A: Density = mass ÷ volume    Rule for significant figure in division:- Round off final answer as per…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Covert  j/Mol into kj/Mol

Q: 8. On his birthday, Emilio received a gold nugget as a present from a friend and was curious to…

A: Given -> Weight= 17.24 gm Initial volume= 12.3 ml Final volume= 13.4 ml Density of pure gold =…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12. g of copper(II)…

A:

Q: A chemist prepares a solution of potassium permanganate (KMnO,) by measuring out 10.9 g of potassium…

A:

Q: A chemistry student weighs out 0.383 g of ascorbic acid (H,C H,O), a diprotic acid, into a 250. mL…

A: Given : Mass of H2C6H6O6 = 0.383 g And concentration of NaOH = 0.1000 M

Q: A chemist prepares a solution of silver oxide (AgO) by weighing out 0.0208 mg of silver oxide into a…

A: From given data  mass of AgO = 0.0208 mg = 2.08 × 10-5 g volume of solution = 50 mL = 0.50 dL…

Q: A chemistry student weighs out  0.0737g  of acrylic acid  HCH2CHCO2  into a  250.mL  volumetric…

A: This problem can be solved by using the molarity equation :…

Q: Suppose 36.4 g of copper(II) acetate is dissolved in 250. mL of a 0.50 M aqueous solution of sodium…

A: Hii there, since there are multiple question posted. We are answering first question. If you need…

Q: A chemist must prepare 750. mL of 240. mM aqueous sodium carbonate (Na₂CO3) working solution. He'll…

A:

Q: A chemist prepares a solution of copper(II) fluoride CuF2 by measuring out 0.0312g of copper(II)…

A: Given that : A chemist prepares a solution of copper(II) fluoride CuF2 by measuring out 0.0312g of…

Q: A chemist makes 610. mL of sodium carbonate (Na, CO,) working solution by adding distilled water to…

A:

Q: What is the volume (in units of m^3) and density (in units of g/mL) of a 325g rectangular block of…

A:

Q: A chemist prepares a solution of barium chlorate (Ba (CIO3),) by measuring out 13.7 g of barium…

A: Concentration = number of moles/volume(in L)  And,  Number of moles = mass/molar mass

Q: A chemist prepares a solution of nickel(II) chloride (NICI,) by measuring out 1.2x 10 jumol of…

A: Moles of NiCl2=1.2×102 μmol Volume=250 mL

Q: A chemist prepares a solution of potassium permanganate (KMNO) by measuring out 26.3 µmol of…

A: The chemist has prepared a 400mL potassium permanganate solution in a flask.

Q: A chemistry student weighs out 0.182 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

A:

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 15. g of copper(II)…

A:

Q: A chemist prepares a solution of sodium hyposulfate (Na₂S₂O3) by measuring out 256. μmol of sodium…

A: Check the formula for calculation of the concentration and then use it to calculate the molarity of…

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: Answer :----

Q: nemist adds 240.0 mL of a 6.5M silver nitrate (AgNO3) solution to a reaction flask. Calculate the…

A: Molarity is defined as number of mole of substance divide by volume of solution in liter

Q: A chemist prepares a solution of sodium thiosulfate (Na, S,03) by measuring out 188. g of sodium…

A:

Q: Calculate the concentration in mol

A: Molarity is defined as the number of moles of solute in 1 litre of the solution.

Q: A chemist prepares a solution of copper (II) fluoride (CuF2) by measuring out 0.044 g of copper (II)…

A: The concentration of a solution can be calculated as follows:

Q: Calculate the volume of water (in mL) that must be added to 64.2 mL of a 5.92 mol/L NaClO3(aq)…

A:

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: A chemist prepares a solution of barium acetate filling the flask to the mark with water. Calculate…

A: moles of barium acetate (Ba(CH3CO2)2) = 3.2 × 102 μmolVolume of the volumetric flask = volume of the…

Q: Solve the following problems, take a picture and upload solution here. Make sure to have the correct…

A: Magnesium hydroxide reacts with hydrochloric acid to form water and magnesium chloride. The equation…

Q: A chemistry student needs 90.0g of carbon tetrachloride for an experiment. The density of carbon…

A:

Q: mol A chemist must prepare 650. ml. of 1.00 M aqueous-calcium bromide (CaBr) working solution.…

A: As we know,Moles the solute remains same on dilution but volume of the solution increases.Dilution…

Q: A chemist must prepare 550. mL of 1.00 M aqueous calcium bromide (CaBr₂) working solution. He'll do…

A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…

Q: A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the…

A: Percent by mass alcohol = 13.5 % Volume of wine = 24 oz 1 oz = 29.57 mL 24 oz = 709.76 mL or 0.70976…

Q: chemist prepares a solution of aluminum chloride AlCl3 by measuring out 32.μmol of aluminum…

A: Concentration is defined as total number of moles of solute present in 1000ml of solution.…

Q: A chemist prepares a solution of potassium dichromate (K,Cr,O,) by measuring out 35. g of potassium…

A: Molarity of a solution represents the concentration of a solution, which is expressed as mol/L.…

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.