Define the melting point range is measure for two materials

Assignment Help Chemistry
Reference no: EM13514922

The melting point range is measure for two materials (A and B). For material A, the melting point range is from 58.5 C to 64.0 C whereas for material B, the melting point range is from 87.0 C to 89.0 C. Which material, A or B, is more pure?

Reference no: EM13514922

Questions Cloud

Film relate to psychology-anthropology and sociology : What is the central message of this film regarding transnational corporations. How does the film relate to psychology, anthropology, and sociology.
How to prepare a liter of carbonate buffer : How would you prepare a liter of "carbonate buffer" at a pH of 10.10. You are provided with carbonic acid (H2CO3), sodium hydrogen carbonate (NaHCO3), and sodium carbonate (Na2CO3). Ka value of H2CO3= 4.2x10^-7
What is the magnitude of the heat that he has lost : In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 7.8x105 J of internal energy. What is the magnitude of the heat that he has lost
Find how much gasoline spills out : A 5.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 69.0°C, how much gasoline spills out
Define the melting point range is measure for two materials : The melting point range is measure for two materials (A and B). For material A, the melting point range is from 58.5 C to 64.0 C whereas for material B, the melting point range is from 87.0 C to 89.0 C. Which material, A or B, is more pure
Determine how fast would the drops be moving : Raindrops fall 1400 m from a cloud to the ground. If they were not slowed by air resistance, how fast would the drops be moving when they struck the ground
How far does the vehicle move from start to stop : An electric vehicle starts from rest and accelerates at a rate of 1.9 m/s2 in a straight line until it reaches a speed of 28 m/s. How far does the vehicle move from start to stop
Explain primary standard is a high molecular weight : One of the requirements for a Primary Standard is a high molecular weight. Why is this a requirement for a substance to qualify as a Primary Standard.
How far is the electron from the origin : An electron moving along the x axis has a position given by x = 16 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the selenide ion concentration

What is the selenide ion concentration [Se2-] for a 0.100 M H2Se solution that has the stepwise dissociation constants of Ka1 = 1.3 x 10-4 and Ka2 = 1.0 x 10-11

  Explain what is the rate of disappearance of br2

2NO (g)+ Br2 (g) yields 2NOBr (g) What is the rate of disappearance of Br2 when [NO]= 5.9×10-2 M and [Br2] = 0.26 M

  Explain a weak acid hx has a dissociation constant

A weak acid HX has a dissociation constant (Ka) of 1 x 10?9. Which of the following statements about a 0.1 M solution of HX in water

  Explain 2-butene-1-thiols is one component of skunk spray

2-butene-1-thiols is one component of skunk spray. How whould you synthesize this substance from methyl 2-buenoate? From 1,3-butadiene

  Explain how many moles are formed for every one mole of kio3

Using this equation, determine how many moles are formed for every one mole of KIO3. KIO3 + 5I + 6H ? 3I2 + 3H2O + K B)Using this equation, determine how many moles S2O3 are needed to titrate the number of moles of I2 calculated in A.

  The atmospheric pressure is 738 mmhg the temperature of the

a sample of neon is collected by displacing 182 ml of water. the pressures of the gas and the atmosphere are equalized

  The cadmium ion was then masked by using an hcnnacn buffer

a 1.728g sample of pbcd alloy was dissolved in acid and diluted to exactly 500ml. titration of a 25.00ml aliquot at a

  Explain a child has a dangerous blood lead level

A child has a dangerous blood lead level of 120ug/100mL. If the child is administered 100 mL of 0.10M Na2 Ca(EDTA), assuming the exchange reaction

  Find the number of moles of naoh

For the acid-base titration combination of NaOH with 1.5 mol HCl, find the number of moles of NaOH that would be the chemically equivalent amount of HCl. Answer in units of mol.

  How to calculate the absorbent coefficient

Calculate the absorbent coefficient (e) when the absorbance of a 2.8 x 10^-4 M solution of proline at 280 nm is 0.45 and the path length is 1 cm

  Explain how many ml of nacl and how many ml of water

Given stock solutions of 0.02 M tris pH 7.4 and 4 M NaCl, how would you prepare 10.0 ml of a 0.5 M NaCl, 0.01 M tris pH 7.4 (how many ml of tris, how many ml of NaCl, how many ml of water)

  Which of the following acid-base pairs would work

Which of the following acid-base pairs would work best for a laboratory experiment requiring a pH of 6.8? What molar ratios of the compounds would you use to prepare the solution?

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