Omium os is the densest element known density 2257 gcm3

Assignment Help Chemistry
Reference no: EM13642120

Osmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and in kilograms of an Os sphere 37 cm in diameter (about the size of a grapefruit). [The volume of a sphere with a radius r is V = (4/3)pr3.]

Reference no: EM13642120

Questions Cloud

Consider a uniform electric field of 50 nc directed toward : consider a uniform electric field of 50 nc directed toward the east. if the voltage measured relative to ground at a
Calculate the number of moles of hydrogen gas that are : in a certain reaction hydrogen reacts with carbon dioxide to produce carbon monoxide and water vapor. provide a
A styrofoam ball of mass 0120 g is placed in an electric : a styrofoam ball of mass 0.120 g is placed in an electric field of 6000 nc pointing downward. what charge must be
A if the phone is 40 m above the ground when it is dropped : a hot air balloon is descending at a rate of 2.6 ms when a passenger drops a cell phone.a if the phone is 40 m above
Omium os is the densest element known density 2257 gcm3 : osmium os is the densest element known density 22.57 gcm3. calculate the mass in pounds and in kilograms of an os
A 50-g bullet is fired into and becomes embedded in a 300-g : a 50-g bullet is fired into and becomes embedded in a 300-g wooden ballistic pendulum with a solid arm. if the pendulum
A point particle with charge q 52 microc is placed at a : a point particle with charge q 52 microc is placed at a corner of a cube of edge a 7.8 cm. what is the flux through a
At this temperature the silicon resistor has a temperature : at 20.0degc a mainly silicon resistor has a resistance of 365 o and a tungsten resistor has a resistance of 752 o. at
Use the empirical rule approximately 95 of all newborn : the respiratory rate per minute in newborns varies according to a distribution that is approximately normal with mean

Reviews

Write a Review

Chemistry Questions & Answers

  A reaction takes place in a constant pressure calorimeter

A reaction takes place inside a constant pressure calorimeter. The heat absorbed by the calorimeter is measured to be +15J.

  What is the minimum number of kilo joules needed

what is the minimum number of Kilo Joules needed to change 40 grams of water 100 C to steam at the same temperature and pressure?

  Define what is the mass or mass percent concentration

If 10.0 mL of blood plasma has a mass of 10.279 g and contains 0.870 g of protein, what is the mass/mass percent concentration of the sample

  Evaluate the trial ksp for the product formed

Write the total and net ionic equations for the reaction of BaSO4 dissociation, and calculate the trial Ksp for the product formed, when 40 mL of 0.1 M Ba(CH3COO)2 reacts with 60 mL 0.6 M MgSO4 and decide whether a ppt will form

  Acetylene gas undergoes combustion to produce carbon dioxide

acetylene gas undergoes combustion to produce carbon dioxide and water vapor. if 75.0 L of co2 are produced how many liters of acetylene are required?

  Explain solution of cesium phosphate

solution of cesium phosphate d. 7.92 x 10^-15 M solution of Hg2+ and a saturated solution of H2S at a pH of 0.5.

  State sample of unknown monoprotic acid requires

A 0.277 g sample of unknown monoprotic acid requires 39.21 mL of 0.1019 M NaOH to reach the endpoint.

  Explain solid carbon to form liquid silicon

Silicon, which occurs in nature as , is the material from which most computer chips are made. If is heated until it melts into a liquid, it reacts with solid carbon to form liquid silicon and carbon monoxide gas.

  State saturated mixture of steam and water

A piston-cylinder device contains a saturated mixture of steam and water having a total mass of 0.5 kg at a pressure of 160 kPa and an initial volume of 100 liters

  Define the attempted allylic bromonation of propene with nbs

During the attempted allylic bromonation of propene with NBS (N-bromosuccinide) a small amount of hexa-1,5-diene is occasionally formed. Explain how this diene byproduct is formed. Please include a chemical equation showing an appropiate organic i..

  How many unpaired electrons

In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

  Explain what is the heat capacity of the bomb

What is the heat capacity of the bomb?(Assume that the quantity of water surrounding the bomb is exactly 2250 g).

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