Explain the molar mass of the unknown acid

Assignment Help Chemistry
Reference no: EM13290559

Assume that a student performs a pH titration to determine the molar mass of an unknown weak acid. The student uses poor lab practice by writing down the mass of his unknown sample on a piece of paper towel and then copies down the value incorrectly onto his data page. The actual mass of the sample was 0.2145g. He mistakenly wrote down 0.1245g, but otherwise performed the experiment correctly. What effect, if any, will this on the molar mass of the unknown acid (too high, too low, or no effect)? Explanin why.

Reference no: EM13290559

Questions Cloud

State what is the observed specific rotation of the mixture : If a pure R isomer has a specific rotation of -134.0°, and a sample contains 60.0% of the R isomer and 40.0% of its enantiomer, what is the observed specific rotation of the mixture
Evaluate the potential difference between the plates : In a Millikan oil-drop experiment (Section 22-8), a uniform electric field of 3.91 x 105 N/C is maintained in the region between two plates separated by 6.80 cm
Define the central atom and explain decision : Place the following molecules and ions in order of increasing bond angle about the central atom, and explain decision
What is the value of your long forward position now : What should be the forward price for delivery on December 31(ex-dividend) of the same year and what is the value of your long forward position now? Assume the forward contract prices are arbitrage free prices.
Explain the molar mass of the unknown acid : The student uses poor lab practice by writing down the mass of his unknown sample on a piece of paper towel and then copies down the value incorrectly onto his data page. The actual mass of the sample was 0.2145g. He mistakenly wrote down 0.1245g,..
Explain produce silver bromide for use in photography : Sodium bromide, used to produce silver bromide for use in photography, can be prepared as shown in the following equations. How many kilograms of iron are consumed to produce 4.15 × 104 kg NaBr
Find the scaling law based on the resulting equation : How does the thermal velocity scale with the size of the molecule diffusing. determine the scaling law based on the resulting equation
What is the breakeven volume : A: Breakeven problem: What is the breakeven volume when the fixed costs are $60,000.
What distance does the satellite travel in one day : A satellite orbits at a distance from the Earth's center of about 7.20 Earth radii, What distance (in meters) does the satellite travel in one day

Reviews

Write a Review

Chemistry Questions & Answers

  State what is the osmotic pressure in mmhg

prepared by dissolving 0.798 g of acetic acid in 500 ml of water solution, what is the osmotic pressure, in mmHg at 25 degrees Celsius?

  Determine the new volume of the gas sample

Find the new volume of the gas sample - What is the new volume of the gas sample

  Equation for the hydrogenation of glyceryl trilinolenate

Write an equation for the hydrogenation of glyceryl trilinolenate, a fat formed from glycerol and three linolenic acid molecules

  Explain light can display particle-like behavior

Which of the experimental results for the photoelectric effects suggest that light can display particle-like behavior

  How much fuel should he carry

A backpacker wants to carry enough fuel to heat 2.7 of water from 30 to 100.0 . If the fuel he carries produces 36 of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 ..

  Explain sulfur dioxide with excess oxygen gas

According to the following reaction, how many moles of sulfur trioxide will be formed upon the complete reaction of 0.429 moles sulfur dioxide with excess oxygen gas

  How many ml of 0.380 m solution can be prepared

How many mL of 0.380 M solution can be prepared by dissolving 4.00g of Ca(OH)2 in water?

  Compute the pka of the second ionizable

Calculate the pKa of the second ionizable group of Z.

  State what is the vapor pressure in mmhg of a solution

What is the vapor pressure in mmHg of a solution prepared by dissolving 5.00g of benzoic acid (C7H6O2) in 100g of ethyl alcohol (C2H6O) at 35 C?

  State what mass of hcl gas must be added to buffer

What mass of HCl gas must be added to 1.00L of a buffer solution that contains [acetic acid]= 2.0M and [acetate]= 1.0M

  Find out the heat of reaction

2Fe(s) + O2(g) => 2FeO(s) ?H = -544.0 kJ 4Fe(s) + 3O2(g) => 2Fe2O3(s) ?H = -1648.4 kJ Fe3O4(s) => 3Fe(s) + 2O2(g) ?H = +1118.4 kJ Given the data above, determine the heat of reaction, ?H, for the reaction below: Reaction: Fe2O3(s) + FeO(s) => Fe3O..

  What is the molecular weight of the unknown solute

A solution is prepared by dissolving 6.00g of unknown nonelectrolyte in enough water to make 1.00L of solution. the osmotic pressure of this solution is 0.750 atm at 25.0 C. what is the molecular weight of the unknown solute ( R= 0.0821 L.atm/K.mo..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd