How many grams of copper are in the necklace? 3. if, Ask an Expert

Academics

An 18-karat gold necklace is 75 gold by mass, 16silver, and 9.0 copper. 1.What is the mass, in grams, of the necklace if it contains 0.29 of silver? 2. How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M9436881

Have any Question?Write your Review or question?

Related Questions in Chemistry

The following sequence of reactions occurs in the

The following sequence of reactions occurs in the commercial production of aqueous nitcric acid: 4NH3(g)+ 5O2(g) -> 4NO2 (g) + 6H2O(l) ΔH = -907 kJ 2NO(g) + O2(g) ? 2NO2(g) ΔH= -113 kJ 3NO2 + H2O(l) -> 2HNO3(aq) + NO(g) ...

Draw the molecule by placing atoms on the grid and

Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.

Asolution is prepared by dissolving 2244 grams of acetic

Asolution is prepared by dissolving 22.44 grams of acetic acid inenough water to make250.0 mL of solution. A 25.00-mL aliquot of NaOH solution is thentitrated with the acetic acid solution. 37.28 mL of the acetic acid so ...

Ironiii oxide reacts with carbon monoxide according to the

Iron(III) oxide reacts with carbon monoxide according to the equation: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) A reaction mixture initially contains 22.15 g Fe2O3 and 15.98 g CO. Once the reaction has occurred as completely as po ...

The reaction of solid dimethylhydrazine ch32n2h2 and

The reaction of solid dimethylhydrazine ((CH3)2N2H2) and liquefied dinitrogen tetroxide (N2O4) has been investigated as a rocket fuel; the reaction produces gaseous carbon dioxide (CO2) nitrogen (N2) and water vapor (H2O ...

Suppose that a student is determining the total base

Suppose that a student is determining the total base content of an antacid tablet by performing a back titration. He/she weighs out a .3012g portion of a tablet whose total weight is 1.5312g, dissolves this in exactly 40 ...

A 479 ml sample of 09833 m hcl is mixed with 485 ml sample

A 479 mL sample of 0.9833 M HCl is mixed with 485 mL sample of NaOH (which has a pH of 13.48). What is the pH of the resulting solution?

A 315-nbspsample ofnbspnh4no3nbspis introduced intoan

A 3.15- sample of NH4NO3 is introduced intoan evacuated 2.26- L flask and then heated to 245 C. What is the total gas pressure, in atmospheres, in the flask at245 C when the NH4NO3 has completely decomposed?

The solubility of silver sulfate ag2so4 inwater has been

The solubility of silver sulfate, Ag2SO4, inwater has been determined to be 8.0 g/L. What is the solubility in0.37 M sodium sulfate,Na2SO4?

The combustion of naphthalene c10h8 which releases 51501

The combustion of naphthalene (C 10 H 8 ), which releases 5150.1 kJ/mol, is often used to calibrate calorimeters. A 1.05 - g sample of naphthalene is burned in a calorimeter, producting a temperature rise of 3.86 degrees ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert