PART A: A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of the bottle is 74.0 mL , how many milliliters of active ingredient are in the bottle? Express your answer with the appropriate units.   Part B Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up to obtain 30.0g of gold? Express your answer with the appropriate units.

Q: A laboratory procedure calls for making 520.0 mL of a 1.2 M KNO3 solution. How much KNO3 in grams…

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Q: A student asked to prepare 2.5 L of a 3.5 M CuSO4 solution. The student placed 400.0 grams of CuSO4…

A: Calculate the number of moles of copper (II) sulfate present in 2.5 L of 3.5 M solution. n = C ×…

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,)) by measuring out 57.0 umol of aluminum…

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Q: answer 3. A chemist was given four unidentified, water-insoluble cubes measuring 1 x 1 x1 cm and…

A: Given - Densities of the liquids -  Water = 0.9982 g/mL  Toluene = 0.8669 g/mL  Nitromethane =…

Q: Suppose 3.32 g of sodium chloride is dissolved in 100. mL of a 0.60 Maqueous solution of potassium…

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Q: Ocean water contains 3.3 %% NaClNaCl by mass. What mass of ocean water in grams contains 43.8 gg of…

A: Mass percent of NaCl = 3.3 %

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

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Q: mol stock solution of silver A chemist makes 590. mL of silver perchlorate (AgClO,) working solution…

A: • The values provided in the question are:-  i) Initial volume of silver perchlorate solution ,V1 =…

Q: Calculate the volume of NaOH  solution the student will need to add to reach the equivalence point

A: Given ;-  Mass of HClO = 0.0909 g  Volume of HClO solution = 250.mL  Molar concentration of NaOH…

Q: The amino acid methionine, which is essential in human diets, has the molecular formula C5H₁1 NO₂S.…

A: The objective of this question is to find out the mass of oxygen in a given mass of methionine. To…

Q: Suppose 1.78 g of sodium bromide is dissolved in 350. mL of a 0.30 M aqueous solution of silver…

A: Molarity is one of the concentration terms used to define the amount of a solute dissolved in a…

Q: A chemist must dilute 45.8mL of 769.mM aqueous aluminum chloride (AlCl3)solution until the…

A: Given data is as follows: The initial volume of the aqueous aluminum chloride V1 = 45.8 mL The…

Q: A pool cleaning solution is mixed from three different bottles of solution. The first bottle…

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Q: How many milliliters of a 4.10 M sucrose solution would be needed to prepare each solution? Note:…

A: Milliliters of Sucrose Solution NeededWe can use the dilution equation to find the volume of the…

Q: Suppose 1.39g  of potassium nitrate is dissolved in  350.mL  of a  75.0mM  aqueous solution of…

A: Molarity is defined as number of mole present in 1L solution. Here, 39.285 mmol KNO3 contains in 1L…

Q: Calculate the concentration in mol/L

A: Molarity or molar concentration of solution is ratio of number of moles of solute to the volume of…

Q: A student dissolved 230.8 grams of cesium chloride in 100.0 grams of 90 °C water.  The student then…

A: 43.8 g of substance has separated out as solid. The mass of cesium chloride present in dissolved…

Q: reaches

A: mmoles of standard Solution = ( volume • concentration )  Note : 1mM = 10^-3 M  mmoles of standard…

Q: 0.0710 moles of CH3CH2OH (ethanol) are dissolved in water to make a solution with a total volume of…

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Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: A sample of 18.11 grams of sodium hydroxide is weighed out on a balance and prepared to a volume of…

A: Given: The mass of NaOH dissolved = 18.11 grams The volume of the solution = 2.00 x 102 mL We have…

Q: Suppose 19.9 g of zinc bromide is dissolved in 200. mL of a 0.40 Maqueous solution of potassium…

A: To find the final molarity of the bromide anion in the solution, we need to determine the moles of…

Q: An analytical chemist weighs out 0.159 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Neutralization reaction : Equivalent amount of acid reacts with a equivalent amount of base This…

Q: A chemist adds 45.0 mL of a 1.5 mol/L nickel(II) chloride (NiCl₂) solution to a reaction flask.…

A: Answer: Number of moles of a compound is equal to the product of molar concentration and volume of…

Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 87. g of barium chloride…

A: Given: Mass of BaCl2= 87 g  The volume of the solution, V=350 mL= 350/1000=0.350 L [1 L = 1000 mL]…

Q: Suppose 0.816g  of barium nitrate is dissolved in  100.mL  of a  42.0mM  aqueous solution of…

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

A: Answer

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

A: Answer

Q: aqueous solutes fed directly to a patient's veins. If an IV solution is 5.0% glucose by mass, how…

A: % by mass is a concentration term which is used to prepare solution of different concentration. The…

Q: If the CaCl₂ was available not as a solid, but rather as a 0.40 molar solution, how many mL of that…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: Suppose 0.439g of zinc chloride is dissolved in 150.mL of a 53.0mM aqueous solution of potassium…

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Q: How many liters of 0.250 M NaOH solution can be prepared from 10.0 g of NaOH?

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Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Since the moles of copper(II) sulfate is coming from the copper(II) sulfate stock solution only…

Q: A chemistry student weighs out 0.0513 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL…

A: Given : Mass of H2SO3 taken = 0.0513 g And concentration of NaHH taken = 0.1500 M Molar mass of…

Q: Suppose 47.6 g of potassium iodide is dissolved in 250. mL of a 0.70 M aqueous solution of silver…

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Q: A chemist adds 125.0 mL of a 0.183M potassium dichromate (K,Cr,O,) solution to a reaction flask.…

A: Mass of Potassium Dichromate can be calculated in the following way:

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: e the volume of NaOH solution the student will need to add to reach the final equivalence point.…

A: We should equal equivalent of both acid and NaOH ion to get mass of oxyliac acid  Equivalent =…

Q: Suppose 5.71 g of potassium chloride is dissolved in 350. mL of a 64.0 m M aqueous solution of…

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Q: In this experiment you will use a 3.0 x 10–5 M stock solution of red dye.  3.0 x 10–5 M means that…

A: we have to calculate the moles of dye molecules in 2.0 mL of the 3.0 x 10–5 M stock solution

Q: O MEASUREMENT Adding or subtracting and multiplying or dividing measurements A chemistry student…

A: Given: Mass of graduated cylinder = 1.5 g Mass of ( graduated cylinder + NaOH )…

Q: A chemist makes 250. mL of calcium bromide (CaBr₂) working solution by adding distilled water to…

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Q: Suppose 2.99g  of sodium bromide is dissolved in  250.mL  of a  64.0mM  aqueous solution of…

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Q: Part A: How many atoms of hydrogen does it contain?         Express your answer using four…

A: Given: Number of carbon atoms in C6H12O6 = 1.300 × 1021 atoms.

Q: What is the concentration, in units of grams of dye per liter of solution (g/L), of the dilute dye…

A: Volume of stock solution = 16.51 mL Concentration of stock solution = 6.12 g/L Volume of volumetric…

Q: mol L A chemist must prepare 850. mL of 2.00 M aqueous silver nitrate (AgNO3) working solution.…

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Q: A chemist prepares a solution of aluminum chloride (AlCl3) by measuring out 35.2 g of aluminum…

A: Given: Weight of the aluminum chloride is 35.2 g. Volume is 100 mL.

Q: chemist must prepare 275.mL of 25.0mM aqueous barium chlorate BaClO32 working solution. He'll do…

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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.