What calculation would determine the student''s precision

Assignment Help Chemistry
Reference no: EM13718691

Problem- A student determines the density of a sample of chromium to be 6.80 g/cm3, 6.78 g/cm3, and 6.77 g/cm3. The density of chromium is known to be 7.15 g/cm3. What calculation would determine the student's precision?

I require skilled aid to respond the specified problem

Reference no: EM13718691

Questions Cloud

Which is denser dry or humid air : Which denser: dry or humid air? assume each is at the same temperature of 150 c and pressure.
Calculate the volume of a piece of iron : Calculate the volume (in dL\rm dL) of a piece of iron having a mass of 4.64kg\rm kg. Note that the density is provided in different units of volume and mass than the desired units of volume (dL\rm dL) and the given units of mass (kg\rm kg).
Explain the masses and volumes of two cylinders : The masses and volumes of two cylinders are measured. The mass of cylinder 1 is 1.35 times the mass of cylinder 2. The volume of cylinder 1 is 0.792 times the volume of cylinder 2.
The mixture is cooled to the temperature of liquid nitrogen : A mixture of H2 and NH3 has a volume of 142.0cm3 at 0.00?C and 1.00 atm. The mixture is cooled to the temperature of liquid nitrogen at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the vessel to 0.00?C a..
What calculation would determine the student''s precision : A student determines the density of a sample of chromium to be 6.80 g/cm3, 6.78 g/cm3, and 6.77 g/cm3. The density of chromium is known to be 7.15 g/cm3. What calculation would determine the student's precision?
Develop a model using an excel spreadsheet : Develop a model using an Excel spreadsheet to project financial statements for Rama's Lawn Mowing -  find how many jobs per year would be required for Rama's company to break even; i.e., to achieve a net present value of  0.00.
Explain what are the equilibrium constant k and g : What are the equilibrium constant K and ?G° for this reaction. Next you rapidly inject an additional 120.0 torr of hydrogen gas into the chamber, disturbing the previously established equilibrium.
Define the term absolute uncertainty : The laboratory manual specifies two types of errors in measurements. What are these errors? Briefly describe each kind and provide examples
Calculate the root-mean-square speeds of n2 : The temperature in the stratosphere is -23 degrees celsius. Calculate the root-mean-square speeds of N2, O2, and O3 molecules in this region.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain future examination without damaging the enzyme

Suggest one way in which an enzyme solution might be stored for future examination without damaging the enzyme

  Explain what mass of precipitate and aluminum hydroxide

Cake alum, aluminum sulfate, is commonly used to purify sewage. What mass of precipitate, aluminum hydroxide, forms whn 185.5 mL of 0.533 M NaOH is added to 627 mL of a cake alum solution that contains 15.8 grams per liter

  State what volume of ammonia is obtained at that temperature

If 5.0L of nitrogen at 12°C and 1.30atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure

  Explain what is the percent yield of the reaction

One way of obtaining pure sodium carbonate is from side to side the decomposition of the mineral trona Na 3(CO3)(HCO3)*2H2O molar mass: 226.03 g/mol, as exposed in the subsequent reaction 2Na3(CO3)(HCO3)*2H2O(s) ----->3Na2CO3(s) + CO2(g) + 5H2O(g)..

  Assume at certain time the wave function is n

Assume at certain time the wave function is N for all x between values x=1cm and x=2cm. for all values of x outside the interval 1, 2 the wave function is zero.

  Determine the heat work and energy

find the heat, work , energy, enthalpy, and entropy change for this process.

  Explain the concentration of acetic acid in the bottle

The strength of a bottle of vinegar was determined by adding potassium carbonate to a 20 ml sample of vinegar until bubbling ceased. The amount potassium carbonate added at the point the bubbling ceased was 1.134 grams. What is the concentration o..

  Provide a mechanism for the removal of a fmoc

Problem- Provide a mechanism for the removal of a Fmoc 9-fluorenylmethoxycarbonyl protecting group from an amino group under basic conditions.

  How much heat (in kj) is needed to convert of ice

Problem- How much heat (in kJ) is needed to convert 996g of ice at -10 degrees Celsius to steam at 126 degrees Celsius

  Explain the rate of change of enthalpy of the system

Illustrate that the rate at which shaft work is obtained or needed for a reversible change of state in a closed system at constant entropy as well as pressure is equal to the rate of change of enthalpy of the system.

  The crystallization front typically travels at a constant

when ionic compounds crystallize from a supersaturated solution the crystallization front typically travels at a

  Provide something that would have a measurement

Provide something that would have a measurement of 50cc, 10.0cm, 5.0x104cm3, 500g, 25kg, 100m, 0.20L, 0.0001km, 1.0x109ug, 250,000mL, 75.0mm,1,000um. Q. How to compute my height of 5'0 into centimeters? And my weight into kilograms

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