copper sulfide percent

Molecular weight of Copper(II) Sulfide - Convert Units

Calculate the molar mass of Copper(II) Sulfide in grams per mole or search for a chemical formula or substance. Molecular weight of Copper(II) Sulfide. Metric System; ... The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula ...

A new way of extracting copper | MIT News

Jun 28, 2017· The MIT researchers found a promising method of forming liquid copper metal and sulfur gas in their cell from an electrolyte composed of barium sulfide, lanthanum sulfide, and copper sulfide, which yields greater than 99.9 percent pure copper. This purity is equivalent to the best current copper production methods.

Solved: A Student Did An Experiment To Determine The Perce ...

A student did an experiment to determine the percent composition of a sulfide of copper. He found that 0.235 g of copper combined with excess sulfur when heated to give a mass of copper sulfide …

Copper sulfide | Exhibition chemistry | Education in Chemistry

Mar 01, 2008· The copper wire reacts readily with the hot sulfur gas (S 8, S 4 and S 2), forming a dark grey, brittle crystalline solid of copper sulfide. After ca five minutes of heating, carefully remove the hook and copper sulfide using tongs and allow any excess sulfur to burn, thus cleaning the copper sulfide. Allow to cool and re-weigh the copper ...

Percent Yield - Chemistry | Socratic

Percent yield represents the ratio between what is experimentally obtained and what is theoretically calculated, multiplied by . #"% yield" = ("actual yield")/("theoretical yield") * # So, let's say you want to do an experiment in the lab. You want to measure how much water is produced when 12.0 g of glucose (#C_6H_12O_6#) is burned with enough oxygen.

What Do Copper and Sulfur Make When They Are Heated up ...

Copper and sulfur make copper sulfide when they are combined. The copper must be in the form of a wire, and the sulfur must be in a hot gas form. Copper sulfide is created through hanging a piece of copper wire in a tube of boiling sulfur. The tube with the suspended copper wire must be clamped at the top and placed on top of a Bunsen burner.

Copper sulfide (CuS) | CuS - PubChem

Groups of 30-32 rats were given single im injections containing 20 mg of cupric oxide (16 mg copper), cupric sulfide (13.3 mg copper), and cuprous sulfide (16 mg copper) into the left and the right thigh of each rat. All animals were observed for up to 20 months, …

Types of Copper Deposits in the World | Investing News Network

Currently the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production. Sulfide ores are processed via froth floatation to ...

Copper Mining and Extraction: Sulfide Ores

The main ores of copper are sulfides and oxides. From their chemical formulas you can calculate the percentage of copper in each mineral. However this is not the same as the percentage of copper in the ore as that also contains unwanted silicates and other minerals, called gangue, that will have to …

Procedure Residual Copper Soluble Analysis -Assay Method -Acid

Accuracy/Precision: This method is not intended to be accurate since there is not one standard procedure for the determination of non-sulphide copper. Results determined by the non-sulphide soluble copper digestion procedure, indicate to the percentage of oxide copper content minerals as …

NAMES - hudson.k12.oh.us

By using a predetermined amount of copper and determining the mass of copper sulfide produced, it is possible to calculate the percentage by mass of each element in the compound. From this information the chemical formula of the compound can be determined.

What is the percentage of sulfur in copper(I) sulfide, Cu2S

What is the percentage of sulfur in copper(I) sulfide, Cu2S . asked by Tierney on October 6, 2009; chemistry. what is the percentage of sulfur and copper(I) sulfide, Cu2S is the answer 35.58% if not could you show me the formula . asked by Tierney on October 6, 2009; chemistry

PHASE RELATIONS AND MINERAL ASSEMBLAGES IN THE …

S above 1105"C and between 26 and )98 rveight percent S 813"C. Naturally occur-ring copper sulfides in addition to those listed above are reported by Morimoto and Koto (1966). Other copper sulfides, which are not known as minerals, have been synthesized

what is the percentage of sulfur in copper (I) sulfide ...

Mar 11, 2007· Best Answer: First you derive the atomic mass for the compound Cu2S. The atomic mass of copper 63.5 is while that of sulphur is 32 making the atomic mass of the compound: 63.5*2 + 32=159 Therefore the percentage of sulphur is = (32/159) *100=20.125%

What is the percentage of sulfur in copper(I) sulfide, Cu2S

Oct 06, 2009· what is the percentage of sulfur and copper(I) sulfide, Cu2S is the answer 35.58% if not could you show me the formula . asked by Tierney on October 6, 2009; chemistry. One of the reactions involved in the smelting of copper sulfide ores involves copper(I) oxide and copper (I) sulfide: 2Cu2O(solid) + Cu2S(solid) ---> 6Cu(solid) + SO2(gas ...

How can I calculate the empirical formula of copper sulfide?

Jan 09, 2015· In order to determine the empirical formula for copper sulfide (or for any compound, for that matter) you need to have some information about either the mass of one reactant and the mass of the product, or about the percent composition of the copper sulfide. For the first case, let's assume you are doing a lab experiment in which you heat a mixture of copper and sulfur in order to produce a ...

Perdue to McCollum: Boundary Waters Environmental Review ...

May 25, 2017· In fact, 92 percent - 92 percent - of these sulfide-ore copper mines operating in the United States have experienced failures that impact water quality. The pictures show what recently happened in 2014 in Canada, and Canada has some of the same stringent safeguards that we try to put in place. But 92 percent of these fail.

Applications: Copper Compounds - Copper Sulphate's Role in ...

As copper sulphate contains 25% copper metal, the copper content of a 1% Bordeaux mixture would be 0-25 % copper. The quantity of lime used can be reduced considerably. Actually 1 kg copper sulphate requires only 0.225 kg of chemically pure hydrated lime to precipitate all the copper.

12.3 Primary Copper Smelting

metal", accumulates in the bottom of the converter. A final air blast ("final blow") oxidizes the copper sulfide to SO2, and blister copper forms, containing 98 to 99 percent coppers. The blister copper is removed from the converter for subsequent refining. The SO2 produced throughout the operation is vented to pollution control devices.

Copper in the USA: Copper Producers

The matte is oxidized in a converter to convert the iron sulfides to iron oxides, which separate out in a slag, and to reduce the copper sulfide to blister copper, which contains at least 98.5 percent copper. Current technology combines the converting step with the preceding smelting step.

Copper Ore Types: Sulfides vs. Oxides | Investing News Network

Copper Ore Types: Sulfides vs. Oxides. ... Copper-containing rock, or copper ore, holds only a small percentage of copper. Most of the rock is unwanted material, typically referred to as gangue.

Sulfide Mining Overview - Save Our Sky Blue Waters

in electric cars). 7 Sulfide mining is remarkable in its mineral to waste ratio. The USGS reported that the average yield of copper mining was between 0.47 and 0.60 percent 8 and that production of copper 9 reached a high of just under 1.6 million tons (based on data from 1970-1990). 10 This

Hydrogen Sulfide Corrosion: Its Consequences, Detection ...

• Mechanism of Sulfide Corrosion Hydrogen sulfide corrosion can occur by two mechanisms: 1) acid attack resulting from the biological conversion of hydrogen sulfide gas to sulfuric acid in the presence of moisture, and 2) direct chemical reaction with metals such as copper, iron .and silver with hydrogen sulfide …

Molecular weight of Copper(I) Sulfide - Convert Units

›› Copper(I) Sulfide molecular weight. Molar mass of Cu2S = 159.157 g/mol. Convert grams Copper(I) Sulfide to moles or moles Copper(I) Sulfide to grams. Molecular weight calculation: 63.546*2 + 32.065 ›› Percent composition by element

Copper sulfide - Wikipedia

Prominent copper sulfide minerals include Cu 2 S and CuS . In the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are often referred to as "copper sulfides". In chemistry, a "binary copper sulfide" is any binary chemical compound of the elements copper …

Solved: When Copper Is Heated With An Excess Of Sulfur, Co ...

When copper is heated with an excess of sulfur, copper(I)sulfide is formed. In a given experiment, 1.73 g of copper was heated with excesssulfur to yield 1.76 g of copper(I) sulfide. What is the percent yield? Expert Answer. 100 %(5 ratings) This problem has been …

Cupric sulfate | CuSO4 - PubChem

A tolerance is established in potable water for residues of copper resulting from the use of the algicides or herbicides basic copper carbonate (malachite), copper sulfate, copper monoethanolamine, and copper triethanolamine to control aquatic plants in reservoirs, lakes, ponds, irrigation ditches, and other potential sources of potable water.

US3793429A - Nitric acid process for recovering metal ...

a sulfide ore material containing sulfide iron and values of one or more metals in the group consisting of copper, nickel, cobalt and silver, is subjected to leaching with an aqueous solution of nitric acid under conditions controlled to insure the formation of easily filterable hydrogen jarosite (3fe2o3.so3.4so3.9h3o), or a similar butless desirable iron compound (2fe2o3.so3.5h2o), which in ...