Chalcopyrite is among the most common varieties of copper ore. Assuming chalcopyrite is 34.4% copper by mass (34.4 grams copper per 100. grams of ore), how many kilograms of chalcopyrite would be needed to smelt 30.0 kilograms of pure copper?

Q: Mass= 1.00 lb volume= 500 cm^3 calculate the density in grams per cubic cemitermiter

A: The density of a substance is defined as the mass of the substance present per unit volume. Given:…

Q: The density of ethylene glycol (anti-freeze) is 1114 kg/m3. How much mass (in kilograms) of this…

A:

Q: Chalcopyrite, the principal ore of copper (Cu), contains 34.63 percent Cu by mass. How many grams of…

A: Percent by mass can be represented by the formula as; Pecent by mass = Mass of the elementTotal mass…

Q: In a clean and dry crucible with cover weighing 24.342 g some of the unknown hydrate (CuSO4.nH2O)…

A: Mass of crucible with and without unknown hydrate and the final constant mass after heating using…

Q: The diagram on the left represents the result of a process. Which of the diagrams [(i) to…

A: The diagram which represent the starting material if the process were physical, and which could…

Q: International computer communications are often carried by optical fibers incables laid along the…

A: Given, the mass of optical fiber = 1.19 x 103 lb/m            Length of each strands optical fiber…

Q: 4. How sizing down to Nano affect material properties?

A: Since  substances at the nanoscale level have a greater surface-to-volume ratio, which causes them…

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: (1) Diamond and graphite are two minerals with identical chemical compositions, pure carbon (C).…

A: 1. Given that, diamond and graphite are two materials with identical chemical compositions and pure…

Q: If the price of gold is $1,254 per ounce and the exchange rate is $1 = €0.8925, how many Euros (€)…

A: It is based on basic unit conversion formula based solution. All you need to do is change 100 kg…

Q: 1. What is the density of a solid if a sample occupying a volume of 16.53 mL wei 85.4 g? 2. Why does…

A: Given: The mass of the solid is 85.4 g. The volume occupied is 16.53 mL.

Q: Classify each property as physical or chemical. (a) the tendency of copper to turn green when…

A: Chemistry is the branch of science which deals chemicals, the chemical behavior of matter and the…

Q: A Canadian, driving in the U.S.A., fuels their car at a cost of US$3.74 per gallon (US).The current…

A: Amount of the car fuel can be calculated as given below:

Q: Given the following data, what was the dollar amount of the gold that could have been extracted from…

A:

Q: A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x…

A: first we have to find the volume, volume=length ×width ×height  then we know, density=mass/volume…

Q: A contractor has 215 bags of cement. Each bag weighs 25.0 kg. How many tonnes of cement does the…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: What is the difference between a chemical process and a physical process in chemistry

A:

Q: 9.87 g + 0.520 g g 9.607 g – 1.00 g %3D g 7.77 g - 1.4 g %3D g

A: In addition and subtraction,  the minimum significant figures in final answer is same as fewest…

Q: The total weight of copper in a vehicle ranges from 15 kilos for a small car to 28 kilos for a…

A: The weight will affect the car acceleration and deacceleration which tells that how better a car can…

Q: An empty vial weighs 55.32 g. (a) If the vial weighs 185.56 g when filled with liquid mercury (d =…

A: The density of a liquid is defined as the ratio of the mass of the liquid to the volume. The SI unit…

Q: A small bottle of Coke contains 8 fluid ounces, or 237 mL, of soda. The nutrition label states that…

A: Mass%= Mass of solute/Mass of solution×100

Q: oncentrated ammonia has 14.8 M, express this in % w/w. The density of NH₃ is 0.899 g/mL.

A: A concentrated ammonia has 14.8 M, express this in % w/w. The density of NH3 is 0.899 g/mL.

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: A mouthwash is 21.3% ethanol by mass If each bottle contains 1.43pt of mouthwash with a density of…

A:

Q: What would be the mass, in grams, of a sphere of titanium which is 24.68 mm in diameter? V =…

A: Given : Sphere of titanium with diameter = 24.68 mm = 2.468 cm…

Q: A cement mixer can produce 88.20 pounds of cement mix for 27 minutes. How many hours would it take…

A:

Q: Determine the density (in g/cm3) of a metal alloy (a mix of metals) that has a mass of 56.68g and…

A:

Q: How many mL of paraffin wax would it take to make a candle of this size, with a volume of 11.0 in³ ?

A: Given: Volume = 11.0 in3.

Q: Soft wood chips weighing 17.2 kg are placed in an iron vessel and mixed with 150.1 kg water and…

A: (a)

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given,2.0g pill contains 7.5% of the active ingredient by mass.Then,25 pills contains = ?

Q: 76 pound flask of mercury costs $156.50. The density of mercury is 13.534 g/cm^3. 1)Find the price…

A: Given: Mass of flask = 76 pounds Density of mercury = 13.534 g/cm^3

Q: the underlined part of the macroscopic domain, or the microscopic domain of chemistry ? 16 g of…

A: Microscopic means small particle while macroscopic means large particles  Molecule of Hydrogen and…

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

A:

Q: Iron is found in Earth's crust as several iron compounds Calculate the mass (in kg) of each compound…

A: Given :- mass of Fe in FeCO3 = 6.3 × 103 kg  To calculate :- mass of compound (in kg)    Molar mass…

Q: "If lemons cost $2.49 per pound and Alice makes $32.00 per hour, how many hours must Alice work to…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: Classify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine…

A: Physical property is the characteristics of matter that is not associated with a change in its…

Q: 1. XY,(aq) + T(s) –– > TX(s) + Y(s)

A: Given: A chemical reaction.  To find : Balanced chemical equation and type of reaction.  Solution :…

Q: Chromium is most commonly mined in the form of chromite, which has the chemical formula FeCr2O4.…

A: Given :-  Chemical formula of Chromite = FeCr2O4  To determine :-  %w/w of each element in chromite

Q: 26,000 nanoliters = ? dekaliters %3D 26.9 = ? 62 = ? %3D

A: The properties of matter are mainly two types. These are extensive properties and intensive…

Q: What is the mass (in kg) of 6.89 × 10^25 molecules of carbon dioxide?

A: Mass is a physical quantity which indicates the amount of matter present in a substance. Its units…

Q: Four research teams measured the density of a new alloy, and what each team wrote in its team…

A: In this question, we are provided with experiment results by to research teams for the measurements…

Q: What is the volume of a piece of diamond (ρ = 3.5 g/cm3) that has a mass of 0.65 kg?

A: Given : density of diamond = ρ = 3.5 g/cm3  And mass of diamond = 0.65 Kg

Q: he distance between atoms is sometimes given in pico-meters, where 1 pm is equivalent to 1 × 10^–12…

A: Given : distance between layers in pm = 568 pm

Q: Substance Substance A Substance B Substance C Substance A Substance E Substance B Substance C…

A:

Q: Which piece of equipment would you use to measure 7.10 mL of CuSO4 (aq)?

A: The given information says that about 7.10mL of CuSO4 (aq) has to be measured. The given value is…

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: Given: Concentration of salt dissolved in Lake Parsons = 28.44 g/L Average concentration of salt in…

Q: Aluminum-Lithium alloys have been developed by aircraft industry to reduce the weight and improve…

A:

Q: A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is…

A: Given Information - mass of empty flask =  78.23 g  mass of flask filled with water = 593.63 g  mass…

Q: The most common oxide of vanadium, V2O5, is used as a catalyst in manufacturing sulfuric acid H2…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".