Calculate the total mass of these letters in grams

Assignment Help Chemistry
Reference no: EM133232521

Question

Scientists at the National Institute for Standards and Technology (NIST) wrote the initials of their agency with 70 individual cobalt atoms (as shown below). Calculate the total mass of these letters in grams.

Reference no: EM133232521

Questions Cloud

The world''s smallest robots-rise of the nanomachines : Discusses the advances and applications of the creation of nanorobots. These nanorobots go beyond our visual senses due to their magnitude in size.
Scientific notation with correct significant figures : How many molecules are in 0.200 moles of N2H4? Report your answer in scientific notation with correct significant figures.
Concentration of reactant decreases : In a first order reaction, the concentration of reactant decreases from 20 mmol dm-3 to 8 mmol dm3 in 38 minutes. What is the half life of reaction?
Describe what happens when the bottle is opened : What is the concentration of CO2 dissolved in the club soda before opening the bottle? Describe what happens when the bottle is opened.
Calculate the total mass of these letters in grams : Calculate the total mass of these letters in grams.
Same quantity of energy : If the same quantity of energy were added to individual 100g samples of water, aluminum, and iron,
Experiment would be good for making purple fireworks : Which of the ionic compounds in this experiment would be good for making purple fireworks ?
Determine the osmolarity : Determine the Osmolarity
The heat equation : The heat equation, as given in the introduction, can also be rearranged to calculate the mass or temperature change for a substance.

Reviews

Write a Review

Chemistry Questions & Answers

  Propose an alternative method to produce carbon

Propose an alternative method to produce carbon- or SiO2-based particles with Accessible Surface Areas in the range of 20-200 m2/gram, via size reduction, of common and/or inexpensive materials (coal, sand, biochar, waste streams, etc.).

  Draw the structures for these alkenes

Problem- When 2-butanol undergoes E1 dehydration, three alkenes are obtained. 1) Draw the structures for these alkenes.

  The difference in ph units between two acidic solutions

The difference in pH units between two acidic solutions is three. How much more acidic is the stronger acid than the weaker acid

  Explain what is the formula for this compound

Chemical formulas point to the ratios of the different types of atoms in a compound. Percentage composition indicates the relative masses of each element in a compound. Mass ratios are important for lab work, while atomic ratios are important for ..

  What will the pressure be

sample of a gas at 25.0 oC and at a pressure of 3 atm, what will the pressure be if the temperature is raised to 50.0 oC?

  How many milliliters of 2.85 m hcl solution

How many milliliters of 2.85 M HCl solution would be needed to react exactly with 40.0 ml of 3.50 M Mg(OH)2.

  Draw hydrogen atoms associated with the carbon

Place palmitic acid at the middle position. Cis/trans isometry is graded -it may help to draw hydrogen atoms associated with the carbon atoms of the double bond.

  Demonstrate awareness of the structures

Demonstrate awareness of the structures, properties and reactions of common classes of organic compound and Describe how organic compounds can be separated

  Sketch the plot of electrical conductivity anainst titre

Sketch the plot of electrical conductivity anainst titre volume(A VS V) you would expect to observe when the strong acid HCl is titrated with the strong base NaOH. Explain the shape of the plot and clearly indicated the end point

  Using the values for the mass of p-dichlorobenzene its

the molality of a solution is the number of moles of the solute that is dissolved in 1000 g of solvent. using the

  Explain a reaction in which ferric oxide is converted

consider a reaction in which ferric oxide is converted to iron and gaseous oxygen. If this reaction is only 83% efficient and the ferric oxide is only 87.5% pure, what mass of ferric oxide is required to make 3 moles of iron

  State the appropriate nuclear equation for iodine

Write the appropriate nuclear equation for the following description. Iodine-131, has a half-life of 8 days. If you started with a 12.0-mg sample of I-131, how much would remain after 24 days

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