Explain the avg molar mass and calculate standard

Assignment Help Chemistry
Reference no: EM13532814

The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass

Reference no: EM13532814

Questions Cloud

Explain the series from hexane to nonane : Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
Estimate the power radiated by a basketball : Estimate the power radiated by a basketball at 20 deg C and a human body at 37 deg C. Use Stefan-Boltzmann Law
What is the information gained from an experiment called : Why is the group "algae" NOT considered to be a monophyletic group? What is the function of the macronucleus in the Ciliophora? Contrast this function with that of the micronucleus.  What is the information gained from an experiment called?
Calculate how far will the spring stretch : When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.89 cm. If the 2.00-kg object is removed, how far will the spring stretch if a 1.00-kg block is hung on it
Explain the avg molar mass and calculate standard : The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass
Compute what is the kinetic energy of the ball : An outfielder throws a 0.150-kg baseball at a speed of 22.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
Explain the minimum pressure that must be applied across : A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.570 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane to obtain water
Close reading assignment to investigate a theme : Essay help with "Invisible Cities" by Calvino. Writing a 6-8 page paper and its a close reading assignment to investigate a theme.
Compute the ropes angle from the vertical : A 18.3-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 65.1-N horizontal force. compute the ropes angle from the vertical

Reviews

Write a Review

Chemistry Questions & Answers

  What weight of a can be removed from a soluton that

what weight of a can be removed from a soluton that contains 6.00 grams of a in 50.0-mls of water by a single

  What is the concentration of the base in the flask

If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask.

  Explain what minimum oh- concentration must be attained

The solubility product of Mg(OH)2 is 1.2 x 10-11. What minimum OH- concentration must be attained to decrease the Mg2+ concentration in a solution of MgCl2 to less than 1.0 x 10-9 M.

  What is the mass of iron in grams

A sample of molten iron occupies of a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?

  Determine the percent yield of clf3 was obtained

The reaction of fluorine of 7.6 grams  with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??

  Evaluate the energy of the photon in joules

a photon has a wavelength of 741nm calculate the energy of the photon in joules

  Define titration curve for the titration of methylamine

Draw the expected titration curve for the titration of methylamine (a weak base) with hydrochloric acid? What would be the nature of the salt produced at equivalence point of this titration?

  Explain what may have happened to the copper during

why is the experimental mole ratio of Cu/O not exactly a whoe number. Think of what may have happened to the copper during the drying period, and what effect this would have on the calculated values

  What is it change in internal energy for the system

The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 115 J of heat. As it expands, it does 77 kJ of work. what is it change in internal energy for the system?

  Compute the approximate molarity

Calculate the approximate molarity of this solution from the volume, percent composition, and density.

  Explain the amount of hg in an industrial-waste pond

If the amount of Hg in an industrial-waste pond is 0.39 micrograms (ug)/mL, how much Hg is present in (kg) if the pond has a surface area (m^2) and an average depth of 35 ft?

  The water level in a graduated cylinder initially at 224

the water level in a graduated cylinder initially at 224 rises to 287 after a piece of lead is submerged. what is the

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