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

Q: Suppose 0.156 g of sodium chloride is dissolved in 100. mL of a 46.0 m M aqueous solution of silver…

A: we have to calculate the molarity of chloride ion

Q: A chemist must dilute 35.3 mL of 1.80 M aqueous aluminum sulfate (Al, (So)) solution until the…

A:

Q: the concentration of a standard polyphosphate solution is 1 milligram per milliliter. if 7…

A:

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: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

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

Q: A chemist must prepare 925. mL of 435. mM aqueous aluminum sulfate (Al₂(SO4)3) working solution.…

A:

Q: A chemist must prepare 750. mL of 115. mM aqueous copper(II) sulfate (CUSO,) working solution. He'll…

A: Given, Molarity of working solution = 0.115mM Volume of working solution = 750mL MOlarity of stock…

Q: An empty beaker is placed on a balance, and its mass is recorded at 42.513 g. The beaker is removed…

A: In this question, we want to determine the mass of the sodium chloride solution ( NaCl )  You can…

Q: A 25.0 mL aqueous stock solution of 3.7 M NaF is diluted to a final concentration of 1.8 M. What is…

A:

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.0118 µmol of magnesium…

A:

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 223. µmol of iron(II)…

A: From given data Number of moles, n = 223 µmol Volume of solution, V = 200 mL = 0.2 L   As,…

Q: A chemist must prepare 300.mL of 2.00M aqueous silver perchlorate AgClO4 working solution. He'll…

A: Dilution equation:                                                  M1V1 = M2V2 where, M1 = Initial…

Q: A chemist prepares a solution of potassium iodide KI by measuring out  72.g of potassium iodide…

A: Molarity:-                  It is the number of moles of the solute dissolved per litre…

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: chemist prepares a solution of aluminum chloride (AICI3) by measuring out 56.5 g of aluminum…

A: Molarity is defined as number of moles of solute dissolved per litre of the solution. Given mass of…

Q: A chemist prepares a solution of nickel (II) chloride (NiCl2) by measuring out 160. umol of nickel…

A: Given : Moles of NiCl2 = 160. umol ×   = 1.60 × 10-4 mol.       [ 1 mol = 10-6 mol ]Volume of NiCl2…

Q: The mass of a beaker is 5.333 g. After 5.00 mL of a concentrated hydrochloric acid solution is…

A: Given the weight of empty beaker and also given the weight of beaker with HCl.  Hence, the weight of…

Q: A chemistry student weighs out 0.0684 g of hypochlorous acid (HCIO) into a 250. ml. volumetric flask…

A: Weight of HClO = 0.0684 gmVolume of HClO = 250ml = 0.250 L (1L = 1000ml)Molarity of NaOH = 0.1700 M

Q: A chemist must prepare 550. mL of 1.00 M aqueous calcium bromide (CaBr₂) working solution. He'll do…

A: As we know , Moles the solute remains same on dilution but volume of the solution increases.…

Q: A titration of vinegar was conducted using 0.756 M NaOH. In total, 30.54 mL of NaOH were added when…

A:

Q: A vial of amoxicillin contains 540. mg in 3.4 mL of solution. Part A What volume of the solution…

A: Given that 3.4 mL of solution cont540 mg of amoxicillin (drug).

Q: A chemist prepares a solution of zinc nitrate (Zn(NO, by measuring out 5.2 x 10 umol of zinc nitrate…

A: Number of moles = 5.2 × 102 u mol Volume of solution = 500 ml  ....Or  because 1L = 1000 ml…

Q: A chemist prepares a solution of copper(II) fluoride  CuF2  by weighing out  0.07319g  of…

A: Mass of copper(II) flouride = 0.07319 g  Volume of water = 500 ml = 0.5 L  Concentration of…

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.