Express the quantity 102,455 m in each unit. fm Express your answer in femtometers to six significant figures.

Q: A chemist adds 1.40 L of a 11.5 g/dL sodium chloride (NaCl) solution to a flask. Calculate the mass…

A: Note: 1 L = 10 dLVolume of a solution = 1.40 L = 1.40 × 10 dL = 14.0 dLConcentration of NaCl…

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: What is the boiling point of water at an elevation of 1.55×104 ftft ? Express your answer with the…

A: Atmospheric pressure at sea level = 760 mm Hg For every 1000 ft increase in elevation, there is a…

Q: A small beaker was found to have a mass of 27.847 g. A 10.00 mL sample of an unknown liquidwas…

A: Answer :- 1.225 (g.mL-1)  Density of unknown liquid (solution) = 1.225 g.mL-1…

Q: A chemist makes 340. mL of iron(II) bromide (FeBr₂) working solution by adding distilled water to…

A:

Q: A sample is found to contain 9.75×109 g of salt. Express this quantity in milligrams.

A:

Q: Calculate the mass in grams of 92.6 ml of diethyl ether, an anesthetic that has a density of 0.713…

A: Density is defined as mass per unit volume of a substance. It is an intensive property which depends…

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 chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 12.4 g of copper (II)…

A:

Q: An aqueous stock solution is 85.0% H3PO4 by mass and its density is 1.69 g/mL. What volume of this…

A: Answer:During the dilution water gradually added to the measured quantity of stock solution. Since,…

Q: A student adds 3.993 grams of salt to a beaker and then adds an additional 69.220 grams of water to…

A: Percent mass: Percent mass of a compound in a solution is defined as the ratio of the mass of the…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO4) by measuring out 69.2g of copper(II)…

A:

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 meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: A chemist must prepare 800.mL of 270.mM aqueous potassium permanganate KMnO4 working solution. He'll…

A: Volume of solution to be prepared = 800 mL Concentration of solution = 270 mM = 0.270M Concentration…

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

A:

Q: Convert 2.26 x 10^-6 to each unit. Express your answer in milligrams to three significant figures.…

A:

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 prepares a solution of potassium dichromate K2Cr2O7 by measuring out 2.0g of potassium…

A:

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

A:

Q: The density of iron is 7.87 g/mL. What is the mass of a 4.00 cm × 4.00 cm × cm × 1.00 cm block of…

A: given density = 7.87 g/ml cross section = 4.00 cm × 4.00 cm × 1.00 cm

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…

Q: A student measures a block to weigh 127.95 grams what would this mass be in milograms with the…

A: Given – Mass of block = 127.95 g   To find - convert g to mg

Q: A chemist makes 500.mL of iron(III) bromide FeBr3 working solution by adding distilled water to…

A: We have to calculate the concentration of working solution.

Q: If a large marshmallow has a volume of 3.25 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: The question is based on the concept of physical chemistry. We have to calculate mass of the…

Q: The water level in a graduated cylinder is initially at 225 mLmL and rises to 285 mLmL after a piece…

A:

Q: A chemist makes 710.mL of mercury(I) chloride Hg2Cl2 working solution by adding distilled water to…

A:

Q: Ethylene glycol (antifreeze) has a density of 1.11g/cm^3 What is the mass in g of 424 mL of ethylene…

A:

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

A:

Q: A piece of metal with a mass of 13.2 g was dropped into a graduate cylinder containing 17.00 mL of…

A:

Q: The water level in a graduated cylinder is initially at 225 mLmL and rises to 255 mLmL after a piece…

A: The volume of water raised in graduated cylinder is due to the lead piece. Using density formula…

Q: mercury density= 13.6 g/mL How many grams of mercury are present in a barometer that holds 5.0 mL of…

A:

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: To reduce dangerous swelling in the brain, physicians sometimes administer intravenous hypertonic…

A: Given volume of solution is 175 ml

Q: Calculate the volume in mL of the sodium nitrate stock solution that the chemist should pour out

A:

Q: phenobarbital elixir. If the phenobarbital elixir is available as 40. mgmg per 20. mLmL,

A: Given :- 20 mL phenobarbital elixir has mass equal to 40 mg  To calculate :- mass of phenobarbital…

Q: In a 1.018E2 g sample of iron(III) oxide, how many grams of iron are present? Your answer should…

A:

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: Read the volume of the liquid in the Erlenmeyer flask. Estimate the volume to the nearest 5 mL…

A:

Q: An iceberg has a volume of 8365 ft^3 What is the mass in kilograms of the iceberg? The density of…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

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

A: Answer:

Q: 865×[1259−(3.98×106)]. Express your answer to the appropriate number of significant digits.

A: In this, first subtraction has to be done.  The values given in the brackets is multiplied and then…

Q: A chemist makes 580.mL of iron(III) bromide FeBr3 working solution by adding distilled water to…

A: The concentration of solution made by adding water is calculated using the dilution law.

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…

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.