A chemistry student needs 90.0 mL of diethylamine for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that -3 the density of diethylamine is 0.706 g cm Calculate the mass of diethylamine the student should weigh out. Round your answer to 3 significant digits. X Ś

Q: A chemistry student needs 85.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, The volume of dimethyl sulfoxide = 85.0 mL The density of dimethyl sulfoxide = 1.10 g.cm-3 We…

Q: A chemist must dilute 78.3 mL of 9.91 mM aqueous calcium sulfate (CaSO4) solution until the…

A: For dilution, we can use the formula:Here, M1 = molarity of the original solutionV1 = volume of the…

Q: A student needs to determine the density of two metal objects. The first object is a cube and the…

A: Given,mass of metal cube = 52.55 g                edge length of a cube = 2.16 cm    2. mass of a…

Q: A chemistry student needs 25.0 mL of ethanolamine for an experiment. By consulting the CRC Handbook…

A: The objective of this question is to calculate the mass of ethanolamine that the student should…

Q: A chemist must prepare  550.mL  of  60.0mM aqueous potassium dichromate  K2Cr2O7 working…

A: Dilution is the process of decreasing the concentration of a solute by mixing more solvent. Dilution…

Q: A chemist must prepare 450. mL of 1.00 M aqueous barium chloride (BaCl,) working solution. She'll do…

A: Molarity of stock BaCl2 solution(M1) = 1.27 M  Molarity of final BaCl2(M2) = 1.00 M V2 = 450. mL

Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: A chemistry student needs 40.0 g of carbon tetrachloride for an experiment. By consulting the CRC…

A: The objective of this question is to calculate the volume of carbon tetrachloride that the student…

Q: The density of gold is 19.3 g/cm3. Johan van der Smoot determines the mass of an irregularly shaped…

A:

Q: A chemistry student needs 30.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Ans

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

Q: A chemistry student needs 90.0 g of acetone for an experiment. By consulting the CRC Handbook of…

A:

Q: Aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous…

A:

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: A chemist prepares a solution of potassium dichromate  K2Cr2O7  by measuring out  46.8μmol of…

A:

Q: A chemistry student needs 15.0 g of ethanolamine for an experiment. By consulting the CRC Handbook…

A: According to the question,The student needs the mass of ethanolamine = 15.0 g.The density of the…

Q: a small sheet of aluminum metal (?=2.70 g/cm3). The sheet had a mass of 1.3648 g, a length of 2.05…

A:

Q: A chemist adds 975.0 mL of a 9.36 g/dL sodium hyposulfate (Na, S,0,) solution to a flask. Calculate…

A: The ratio of moles to the volume in liters is known as molarity.

Q: A chemist prepares a solution of mercury(I) chloride Hg2Cl2 by measuring out 0.000957μmol of…

A: The concentration is approximately 3.83 x 10-9 mol/L

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: A chemist must dilute 70.4 mL of 9.54 mM aqueous calcium sulfate (CaSO4) solution until the…

A:

Q: A chemistry student needs 40.0mL of pentane for an experiment. By consulting the CRC Handbook of…

A: Given,Density = 0.626 g/cm3,Volume = 40.0 ml.

Q: Lidocaine, a widely used local anesthetic, is available as a 0.50 % (w/v) solution for injection.…

A: Given :  Concentration of lidocaine = 0.50 %(w/v)  Mass of lidocaine = 65. mg

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

A:

Q: A chemistry student needs 90.0 g of carbon tetrachloride for an experiment. By consulting the CRC…

A:

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: A general chemistry student found a chunk of metal in the basement of a friend's house. To figure…

A: First we will calculate density of metal, then estimate the unknown metal by comparing density of…

Q: A chemist makes 640.mL of mercury(II) iodide HgI2 working solution by adding distilled water to…

A: When a solution of Molarity M1  and volume V1 is diluted by adding water to a final volume V2  and…

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A:

Q: A chemistry student needs 30.0 mL of ethanolamine for an experiment. By consulting the CRC Handbook…

A: The objective of this question is to calculate the mass of ethanolamine that the student should…

Q: A chemistry student needs 85.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: 85 ml of diethylamine is taken.  The density of it is 0.706gcm-3

Q: A chemistry student needs 65.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: The relation between mass and volume is given by: Density = mass / volume so, mass = density x…

Q: She measured the mass of the metal to be 197 grams. Then she dropped the metal into a measuring cup…

A:

Q: A chemist adds 190.0mL of a 6.4M silver nitrate AgNO3 solution to a reaction flask. Calculate the…

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Q: Calculate the volume in mL  of the potassium dichromate stock solution that the chemist should pour…

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Q: Liquid hexane  CH3CH24CH3  will react with gaseous oxygen  O2  to produce gaseous carbon dioxide…

A: Given, Mass of hexane = 2.29g Molar mass of hexane = 86.18g/mol mass of oxygen = 17.0g Molar mass of…

Q: A chemistry student needs 90.0 mL of carbon tetrachloride for an experiment. By consulting the CRC…

A: Given, Note: 1 mL = 1 cm3 Volume of Carbon tetrachloride = 90.0 mL = 90.0 cm3 Density of Carbon…

Q: A chemistry student needs 85.0 g of carbon tetrachloride for an experiment. By consulting the CRC…

A: A chemistry student needs 85.0 g of carbon tetrachloride for an experiment. If the density of carbon…

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

A:

Q: general chemistry student found a chunk of metal in the basement of a friend's house. To figure out…

A: Density = mass/volumeVolume of substance = volume of water displaced by substance

Q: Calculate the concentration of the chemist's working solution.

A: Given :- Initial concentration of solution =18.8μmol/L  Initial volume of solution = 20.0 mL  Final…

Q: he flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium…

A: Given   A chemist prepares a solution of potassium dichromate (K2Cr2O7) by measuring out 19.4g of…

Q: A chemist prepares a solution of mercury(I) chloride Hg2Cl2 by measuring out 0.0000526μmol of…

A: Answer:

Q: The chemist measures the volume of the unknown liquid as 0.615 L and the mass of the unknown liquid…

A: mass of liquid = 385 gvolume of liquid = 0.615 L = 615 mL = 615 cm3Density of the liquid = ?Identify…

Q: A chemistry student needs 75.0 g of methyl acetate for an experiment. By consulting the CRC Handbook…

A: Mass of methyl acetate= 75.0 grams and density of methyl acetate = 0.934  g cm-3 . we need to…

Q: A chemistry student needs 50.0 g of glycerol for an experiment. By consulting the CRC Handbook of…

A: According to the question, The student needs the mass of glycerol = 50.0 g The density of the…

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.