Explain what mass of cu and of n are contained in sample

Assignment Help Chemistry
Reference no: EM13549713

What mass of Cu and of N (in grams) are contained in 250.7 g of sample that is 75.4% pure Cu(NO3)2 by mass? (Assume that the impurities do not contain Cu and N.)

Reference no: EM13549713

Questions Cloud

Evaluate the molecular weight of zinc carbonate hydroxide : Zinc carbonate hydroxide contains 59.55% zinc by mass. Calculate the molecular weight (molar mass) of zinc carbonate hydroxide. (There are 5 atoms of zinc in every unit of zinc carbonate hydroxide.)
What width slit will produce a central maximum : Green light (? = 546 nm) strikes a single slit at normal incidence. What width slit will produce a central maximum that is 1.70 cm wide on a screen 1.18 m from the slit
What is the wavelength of the light in the bubble film : Monochromatic light of wavelength 430 nm is incident on a soap bubble of index 1.57. What is the wavelength of the light in the bubble film? Answer in units of nm
Explain carbon and hydrogen was burned in excess oxygen : An unknown compound containing only carbon and hydrogen was burned in excess oxygen. When 7.714 grams of the compound was burned, 24.205 grams of carbon dioxide and 9.911 grams of water were produced.
Explain what mass of cu and of n are contained in sample : What mass of Cu and of N (in grams) are contained in 250.7 g of sample that is 75.4% pure Cu(NO3)2 by mass. (Assume that the impurities do not contain Cu and N.)
Upper surface of the wing if the plane is to stay in the air : An airplane has a mass of 1.7x10^6kg and the air flows past the lower surface of the wings at 96 m/s. If the wings have a surface area of 1200m^2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
Determine what is the change in the internal energy : An ideal monatomic gas expands isothermally from 0.590 m3 to 1.25 m3 at a constant temperature of 690 K. If the initial pressure is 1.10 105 Pa.  Find the change in the internal energy
A trebuche is ancient device used for launching projectiles : For my project I constructed a trebuche. A trebuche is an ancient device used for launching projectiles. It acheives this by harnessing potential energy and allowing this potential energy to convert into kenetic energy. This potential energy is st..
Estimate how much energy does it expel in each cycle by heat : A heat engine operates in a Carnot cycle between 90.0°C and 360°C. It absorbs 20,400 J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the molar enthapy of vaporization of a substance

The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.

  The average european woman consumes food with energy content

the average european woman consumes food with energy content of 7525kj. what is the daily intake in kilocalories or food calories

  State a ground state hydrogen atom absorbs a photon

A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.30 nm. It then gives off a photon having a wavelength of 1820 nm

  Define how the calculated formula of the hydrate

Explain how the calculated formula of the hydrate would be changed if water from the air is absorbed by the hot dry sample as it cools.

  Explain the solid copper carbonate was isolated by vacuum

The solid copper (II) carbonate was isolated by vacuum filtration and dried; 0.920 g of copper (II) carbonate was collected. The net ionic equations for the reactions which occurred are shown below.

  Explain one frequently observes the formation of a blck

In heating an organic compound strongly with metallic sodium, one frequently observes the formation of a blck material, which is insoluble in water

  Calculate for the combustion of octane by using enthalpies

calculate for the combustion of octane by using enthalpies of

  How is hydrogen bond different from ionic or covanlent bond

How is hydrogen bond different from an ionic or covanlent bond?

  Explain coal-burning electric power plants

Sulfur dioxide in the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. One method for reducing SO2 emissions involves partial reduction of SO2 to H2 S

  What is the mass of stomach acid

antacids which contain CaCO3 react with stomach acid to the equation . it gives the eq but I cant type it. what is the mass of stomach acid that reacts with 1.00 grams CaCO3 ?

  The zinc content determined by dissolving the ore in hcl

The zinc content of a 1.23 g ore sample was determined by dissolving the ore in HCl, which reacts with the zinc, and then neutralizing excess HCl with NaOH. Zn+2HCl-->ZnCl2+H2

  Explain the vapor pressure of the solution

A solution is made by mixing 49.0 mL of ethanol, C2H6O, and 51.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 degrees celcius

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