A student decided to undertake a balance calibration exercise during a lab session involving burette calibration. He found the apparent weight of calcium carbonate in air to be 100 grams and density to be 1.33g/mL. Assume that the standard steel weight used in the calibration has a density of 8.0g/mL and air has a density of 0.0012g/mL. What would be the true mass of the calcium carbonate sample?

Q: A chemist adds 370.0 mL of a 4.8 × 104 mmol/L magnesium fluoride (MgF₂) solution to a reaction…

A: Answer:Number of moles of a specie in a solution is equal to the product of its molar concentration…

Q: If 10.00 mL (measured using a volumetric pipette) of a solution is pipetted into a 50 mL beaker…

A: Given, Volume of the solution = 10.00 mL Weight of beaker = 43.015 g Weight of beaker+ weight of…

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Q: For a compound containing 181.351 g C, 36.5115 g a) the empirical formula C2H4N C3H7N C3H6N3 b) the…

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Q: identify the group number corresponding to each of the following families of elements. a. boron…

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Q: What is the maximum mass of pure lead that could be extracted from 195. g of galena, a lead ore with…

A: Formula of galena = PbS Mass of Galena = 195.0 g Molar mass of Galena = 239.3 g/mol Mass of pure…

Q: A sample of gold alloy has a mass of 9.3 kg. It is determined that 0.6 kg of the alloy is actually…

A: Answer:Mass percent of a substance can be calculated as:

Q: A 16.0-fl oz bottle of orange extract contains 2.1 × 10² mL of ethanol. What is the significant…

A: Volume of orange extract = 16.0-fl ozVolume of ethanol = 2.1102 mL

Q: A stock solution of 75% v/v ethanol was diluted with distilled water to prepare 1L of 42% v/v…

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Q: 38) During the early 1970s, the price of copper rose to a point where the cent contained almost one…

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Q: A particular beer is 6.50% ethanol by volume (C₂H₂O). If a single bottle of beer contains 750.0 mL…

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A: Given Brand X antacid 2 tablets/500 mg dose 40 tablets/container cost:$3.75/container To find Cost…

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Q: Ethylene glycol, commonly used as automobile antifreeze, has a specific gravity of 1.1088 at room…

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Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: If 10.00 mL (measured using a volumetric pipette) of a solution is pipetted into a 50 mL beaker…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains g 93. X 32. mL…

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Q: A chemist prepares a solution of potassium permanganate (KMnO4) by measuring out 3.8 mg of potassium…

A: Weight of KMnO4= 3.8 mg = 3.8 × 10-3 g  (1g = 1000mg)  Volume (V) = 50 ml = 0.050 L (1L = 1000ml)

Q: Norepinephrine can be analyzed in human urine. A fixed amount of DHBA was added to each sample and…

A: The objective of the question is to understand the analytical function of adding DHBA in the…

Q: Suppose you have 150. mL of a substance with a density of 42.0 g/dm3 and want to determine the mass…

A: 150 mL of a substance has a density of 42.0 g/dm3 .We have to calculate the mass of the substance…

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Q: A solution of 34.5% sulfuric acid by weight in water has a density of 1.26 g/mL. How many grams of…

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Q: Given the data and information in the prompt, how many sig figs is the percent of sugar in the…

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A: Given : Calibration curve equation : y = 21655 x + 0.0318  where y = Absorbance  x = molar…

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

A: We are going to determine the final unit.of this expression.

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Mass of hydrobromic acid (HBr) = 0.81 gMass of sodium hydroxide (NaOH) = 0.124 gMaximum mass of…

Q: 3) An eager new legislator is enamored with how everything is expressed in powers of 10 in t metric…

A: Mole is a quantity of substance that contains 6.022 x 1023 units of that substance. It is the S.I.…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.