A chemist adds 0.90L of a 1.72 M potassium iodide KI solution to a reaction flask. Calculate the mass in kilograms of potassium iodide the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Q: A chemist prepares a solution of magnesium fluoride MgF2 by measuring out 0.0042μmol of magnesium…

A: Given that: Moles of Magnesium fluoride = 0.0042μmol Volume = 450 mL = 0.450L Concentration =?

Q: A chemistry student weighs out 0.146 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

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Q: A chemist prepares a solution of barium chloride (BaCl,) by measuring out 39. g of barium chloride…

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Q: When you perform the following operations, how many significant figures should your answer have?…

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Q: A chemist determines by measurements that 0.025 moles of nitrogen gas participate in a chemical…

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Q: A chemist prepares a solution of calcium bromide (CaBr₂) by measuring out 241. g of calcium bromide…

A: Given : mass of CaBr2 = 241. g               Volume of solution = 350. mL  To calculate :…

Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 0.667 kg of calcium…

A: A Chemist prepares a solution of calcium bromide(CaBr2) by measuring out 0.667kg of calcium bromide…

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by weighing out 78.0 g of nickel(II)…

A: Concentration is a definite amount of solute in a solvent .concentration is also the ratio of the…

Q: A chemist must prepare 650. mL of 81.0 µM aqueous zinc oxalate (ZnC,0,) working solution. She'll do…

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Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.347 mg of…

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

Q: A chemist prepares a solution of sodium carbonate (Na, CO,) by measuring out 62.5 g of sodium…

A: Given :-  Mass of Na2CO3 = 62.5 g  Volume of solution = 350. mL  To determine :-  Concentration of…

Q: A chemist adds 415.0 mL of a 3.59 × 10 mM magnesium fluoride (MgF,) solution to a reaction flask.…

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Q: A chemist prepares a solution of calcium bromide (CaBr, ) by measuring out 30.2 umol of calcium…

A: Given ; Moles of CaBr2 = 30.2 micromol And volume of solution = 300 mL

Q: A chemistry student weighs out 0.270 g of citric acid (H;C,H;0;), a triprotic acid, into a 250. mL…

A:

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 0.5448 kg of potassium iodide…

A:

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by measuring out 11. umol of nickel(II)…

A: The concentration of a solution is determined by the amount of solute dissolved in the solution. For…

Q: A chemist prepares a solution of zinc nitrate by measuring out 78. umol of zinc nitrate into a 100.…

A: Given: The number of micromoles of zinc nitrate present = 78 μmol The volume of the solution = 100…

Q: A chemist adds 260.0 mL of a 0.360 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

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Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 2.3 x 10 umol of iron(II)…

A: Change micro mol to mili mol the volume in L. then divide it.

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 0.0029 µmol of zinc oxalate…

A: Given :-  No.of moles of ZnC2O4 = 0.0029umol  Volume of solution = 150. mL  To calculate :-…

Q: A chemist must prepare 575.mL of 1.00M aqueous sodium carbonate Na2CO3  working solution. She'll do…

A: When a concentrated solution (stock solution) of concentration C1 and volume V1 is diluted by adding…

Q: A chemist must prepare 500. mL of 95.0 mM aqueous potassium permanganate (KMNO,) working solution.…

A: To approach this problem, the concept that we use is the concept of using equal milimoles of the…

Q: A chemist adds 480.0 mL of a 1.26M sodium carbonate (Na, CO,) solution to a reaction flask.…

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Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by weighing out 4.73 g of nickel(II)…

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Q: A chemist prepares a solution of nickel(II) chloride NiCl2 by weighing out  48.2g of nickel(II)…

A: The number of moles for a given chemical species refers to the ratio of mass to the molar mass. The…

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.00744 umol of…

A:

Q: A chemist prepares a solution of aluminum chloride (AlCl,) by measuring out 20. umol of aluminum…

A: Given : Moles of AlCl3 = 20 µmol And volume of solution = 250 mL = 0.25 L…

Q: A chemist adds 415.0 mL of a 9.84 × 10 "M magnesium fluoride (MgF2) solution to a reaction flask.…

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Q: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

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Q: A chemist must prepare 275. mL of 325. mM aqueous sodium carbonate (Na, CO,) working solution. He'll…

A: Answer:

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 1.47 mg of zinc oxalate into…

A:

Q: A chemist prepares a solution of sodium hyposulfate (Na₂S₂O3) by measuring out 200. μmol of sodium…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: u

A: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

Q: If you dissolve 24.4 g of NaCl in 251 g of water and generate a solution that has a density of 1.10…

A: Molarity of a solution is given by,

Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 8.2 g 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: A chemistry student weighs out 0.0856 g of citric acid (H,C H,0,), a triprotic acid, into a 250. mL…

A: Given, amount of citric acid =0.0856 gramvolume of citric acid solution =250 mL =0.250 Lis titrated…

Q: A chemist prepares a solution of potassium dichromate (K₂Cr₂O₂) by measuring out 9.94 μmol of…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: A chemist prepares a solution of barium acetate (Ba(CH,CO,),) by measuring out 1.3 x 10 umol of…

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Q: A chemist prepares a solution of calcium sulfate (CASO) by weighing out 0.06781 g of calcium sulfate…

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Q: An analytical chemist weighs out 0.151 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Solution:- Mass of unknown monoprotic acid = 0.151 g                 volume = 250 mL = 0.250 L…

Q: A chemist must prepare 450.mL of 370.mM aqueous potassium permanganate KMnO4 working solution.…

A: We have to calculate the volume of stock solution.

Q: A chemistry student weighs out 0.0852 g of phosphoric acid (H, PO), a triprotic acid, into a 250. mL…

A: Given data :

Q: A chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out ×6.4102μmol of silver(I)…

A: Moles of Silver Nitrate = 6.4102 μmol Volume of Silver Nitrate = 450 mL The concentration is to be…

Q: A chemistry student weighs out 0.0570 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

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Q: A chemist adds 340.0 mL of a 0.0060 mmol/L calcium sulfate (CaSo,) solution to a reaction flask.…

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Q: mmol A chemist makes 460. mL of magnesium fluoride (MgF₂) working solution by adding distilled water…

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Q: A chemistry student weighs out 0.420 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

A: The quantitative analysis for determining the concentration of an acid or base by neutralizing it…

Q: A chemist prepares a solution of mercury(II) iodide (Hgl,) by weighing out 7.148 mg of mercury(II)…

A: Given: weight of HgI2 is 7.148 mg volume of the solution is :150 ml No. of grams  of solute present…

Q: A chemist prepares a solution of iron(II) bromide (FeBr, by measuring out 56.5 µmol of iron(II)…

A:

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.