An analytical chemist weighs out 0.131 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.1800 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 8.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. mol

Q: Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of…

A: We calculate normality of acid and base then use this formula N1V1 = N2V2

Q: An analytical chemist weighs out 0.047 g of an unknown monoprotic acid into a 250 mL volumetric…

A: We have to calculate the molar mass of the unknown acid.

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: It is acid-base titration. We knew that sodium hydroxide is not the primary standard solution. So we…

Q: In an acid-base titration, the neutralization of 20.00 mL of a solution of KOH (potassium hydroxide)…

A:

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.450 g sample of a weak monoprotic acid,…

A: Answer:- This question is answered by using the simple chemical reaction between acid and base. Then…

Q: 0.172 g of potassium hydrogen phthalate (KHP) was titrated with NaOH. When 31.5 mL of the KOH had…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: We have to calculate the Molarity of NaOH solution.

Q: n analytical chemist weighs out 0.105 g of an unknown monoprotic acid into a 250 mL volumetric flask…

A: At equivalence point mole of standard solution is equal to the mole of unknown solution.

Q: A chemistry student weighs out 0.0973 g of phosphoric acid (H3PO4, a triprotic acid, into a 250. mL…

A: Given:Mass of phosphoric acid=0.0973 gVolume=250 mLMolarity of NaOH=0.1100 M Conversion:From mL to…

Q: An analytical chemist weighs out 0.123 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: To a 25.00 mL volumetric flask, a lab technician adds a 0.275 g sample of a weak monoprotic acid,…

A: Given:  Mass of acid(HA) = 0.275 gm  Molarity of base (KOH) = 0.0803 M  Volume of base at end point…

Q: An analytical chemist weighs out 0.127 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:-analytical chemist weighs = 0.127 gMolarity = 0.1800MV = 9.3 mLCalculate molar mass of the…

Q: An analytical chemist weighs out 0.032g of an unknown triprotic acid into a 250mL volumetric flask…

A: According to the question we have, The mass of unknown triprotic acid is given by = 0.032 g. The…

Q: An analytical chemist weighs out 0.099 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Mass of unknown acid (m) = 0.099 g Volume of unknown acid (V1) = 250 mL  Concentration of NaOH…

Q: An analytical chemist weighs out 0.193 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: A chemistry student weighs out 0.218 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Given: mass of ascorbic acid = 0.218 g Molar mass of ascorbic acid , H2C6H6O6 = 176 g/mol No. of…

Q: Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For…

A: Given: The reaction is as follows, 2KMnO4(aq) + H2O2(aq)+3H2SO4(aq) → 3O2(g) + 2MnSO4(aq) +K2SO4(aq)…

Q: with distilled water. The technician then titrates this weak acid solution with 0.0841 M KOH. She…

A:

Q: An analytical chemist weighs out 0.073 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given : Mass of monoprotic acid = 0.073 g  Concentration of NaOH = 0.1200 M And volume of NaOH…

Q: A titration is a procedure for determining the concentration of a solution by allowing it to react…

A: Part - A: The balanced equation is   H2SO4 + 2 KOH --------> 2 H2O (l) +  Na2SO4 (aq) Number of…

Q: An analytical chemist weighs out 0.181 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Let the diprotic acid be H2A. The reaction between the diprotic acid and NaOH is shown as: H2A +…

Q: An approximately 0.1 M NaOH solution is made by adding 4.0 g of solid NaOH to 1000 mL. of water. The…

A: Titration is a common laboratory method of quantitative analysis to determine the concentration of…

Q: Titration of a 11.0 mLmL solution of HClHCl requires 32.4 mLmL of 0.11 MM NaOHNaOH. What is the…

A:

Q: mass of Iknowr

A: To solve the problem, we need to back calculate the moles of monoprotic acid from the titration…

Q: An analytical chemist weighs out 0.091 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: During a Titration, at equivalence point , the substance reacts completely with the added substance.…

Q: An analytical chemist weighs out 0.050 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: In an acid-base neutralization reaction, normality will be compared as the base is monobasic and the…

Q: An analytical chemist weighs out 0.185 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:- analytical chemist weighs = 0.185 g Molarity = 0.2000M V = 9.5 mL Calculate molar mass of…

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: An analytical chemist weighs out 0.087 g of an unknown monoprotic acid into a 250 mL volumetric…

A: The point in the titration curve, where the moles of acid and the moles of the base are equal in…

Q: An analytical chemist weighs out 0.112 g of an unknown monoprotic acid into a 250 mL volumetric…

A: We need to use molarity equation to solve this question.

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 chemistry student weighs out 0.379g of citric acid H3C6H5O7, a triprotic acid, into a 250.mL…

A: Given : mass of H3C6H5O7 = 0.379 g  And concentration of NaOH = 0.2000 M  Since H3C6H5O7 is a…

Q: An analytical chemist weighs out 0.115 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given data,Mass of acid=0.115gMolarity of NaOH=0.070MVolume of NaOH=17.0mLVolume of flask=250mL

Q: A solution of NaOH was standardized by titration against primary standard grade potassium hydrogen…

A:

Q: An analytical chemist weighs out 0.059 g of an unknown monoprotic acid into a 250 mL volumetric…

A: The point in the titration curve, where the moles of acid and the moles of the base are equal in…

Q: An analytical chemist weighs out 0.108 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: The objective of the question is to calculate the molar mass of unknown acid.In an acid-base…

Q: An analytical chemist weighs out 0.191 g of an unknown monoprotic acid into a 250 ml. volumetric…

A:

Q: An analytical chemist weighs out 0.073 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: Given : Mass of triprotic acid = 0.073 g  Concentration of NaOH = 0.1500 M And volume of NaOH…

Q: An analytical chemist weighs out 0.206 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.