Calculate the number of bromine molecules in flask

Assignment Help Chemistry
Reference no: EM13110763

A flask contains 0.350 grams of liquid Br( bromine), . calculate the number of (Br)bromine molecules present in the flask

A calorimeter contains 19.0 grams of H2O at the temperature of 14 degree Celsius. When 1.20 grams of a substance is combined, it mixed via the reaction it is given that the substance has molar mass =57.0 temperature of the solution increases to 27.5 degree Celsius. compute the enthalpy change, , for this reaction per mole of substance .the specific heat =density of the resulting solution = those of water [4.18 and 1.00 ]

Reference no: EM13110763

Questions Cloud

How does vibration of the tympanic membrane : How does vibration of the tympanic membrane ultimately produce the fluctuation in membrane voltage in the cochlear hair cell?
Determine the maximum amount of sulphur : Determine  the maximum amount of P4S10(444.545 g/mol) that can be produced  from 18.27 grams of Phosphorous (123.895 g/mol) and 9.42 g of sulphur (256.52 g/mol)
Explain overland delays five days before returning pump : Overland delays five more days before returning the pump. Mit-E files a suit against Overland, asking for compensatory and consequential damages. Will Mit-E recover? Explain.
What are the parents phenotypes : What are the chances that the next child of the parents of the siblings in part (a) will be a Type B son or a Type A daughter? (show Punnett square)
Calculate the number of bromine molecules in flask : A flask contains 0.350 grams of liquid Br( bromine). calculate the number of (Br)bromine molecules present in the flask
Determine the concentration of o3 in air : determine  the concentration of O3 in air sample (in ppm)If 10,000 Litres of air bubbled through iodide solution and back titrated with 19.4 mL of a 1.2x10-4 M Sodium thiosulfate, also spelled sodium thiosulphate solution to reach equivalence,?
What are the chances that their next child will be daughter : In humans, let's say that having a free earlobe is dominant to having an attached earlobe, and that hairline is an X-linked trait whereby a normal hairline is dominant over a widow's peak hairline. Two parents with free earlobes and normal hairlin..
How business intelligence help company to make decisions : How does business intelligence help an organization better monitor, manage, and make decisions for its business?
Determine how many micrograms of herbicide are present : Determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 3.0 ppb. ?

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the ph of solution

Need to prepare a solution of 0.2 L 0.4 M then determine how many cm^3 of a solution of H2SO4 (sulfuric acid) 80.0%

  Compute the henrys law constant of air

Determine the range of fat you might expect to obtain if you extracted fat from ten grams of nutmeg (Dried, ground nutmeg typically contains between 20-25% fat by weight.) Assume that your extraction is 95% effective.

  Determine the amount of zinc metal

Calculate the mass of Sodium and Zinc in grams in the following equations using ideal gas law - Determine the amount of Zinc metal in grams consumed in the reaction.

  Calculate the molar mass of the gas

Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.

  Determine the density of the plastic

Ddetermines how many tablets should be given to her if there are five tablets in stock.

  Draw a proposed catalytic cycle

Draw the enantiomer of proline which would give rise to the absolute stereochemistry and draw a proposed catalytic cycle for the transformation and how does the catalyst activate the substrate

  Find out the concentration of molarity

Find out the concentration of this solution in  a)M (molarity),  b) m (molality), c) % w/w (percent by mass). If solvent =, H 2 O.

  By what factor does rate of isomerization reaction increase

By what factor (The factor is the ratio of the rates) does the rate of this isomerization reaction increase as the temperature increases from 256 degree celsius to 297 degree celsius ?

  Assume the specific heat of pure water

What volume of 0.140 M Hydrochloric acid is required to neutralize 2.68g of Magnesium hydroxide.

  Determine how much heat is evolved per gram of fuel burned

The temperature of the H 2 O is 26.55 degree celsius. Determine how much heat is evolved per gram of fuel burned?

  Calculate the molar mass of the solute

Determine the total number of atoms in this chemical formula and calculate the molar mass of the solute and how many moles of solute are in the solution?

  Overlap in the sigma bond

Considering the molecule HOOH. What happens to the overlap in the σ bond between the 2 O atoms as one hydroxyl group is rotated in a clockwise relative to the other hydroxyl group?

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