Evaluate the mass percentages of copper

Reference no: EM13554276

A 1.28-gram sample of copper is heated with sulfur to produce 1.60 grams of a copper sulfide compund. Calculate the mass percentages of copper and sulfur in the compund.

Reference no: EM13554276

Questions Cloud

Determine by what percent has the block melted : A block of solid water (m = 12g, Ti = -5 degress C) is placed as ammo inside a spring loaded cannon. The spring in this cannon has a stiffness of k = 20,000 N/m and is compressed by 1 m. by what percent has the block melted

Explain how many grams of formaldehyde h2co : How many grams of formaldehyde, H2CO, are in a 500 ml of a 40% solution of formaldehyde in water. (Assume for this problem that the density of the formalin solution is 0.98 g/ml)

Determine what is the entropy change of the universe : Humans cool off by perspiring; the evaporating sweat removes heat from the body. what is the entropy change of the universe due to the evaporation of 215 mL of sweat

What is the change in kinetic energy of the system : You stand on a frictionless platform that is rotating with an angular speed of 7.2 rev/s. What is the change in kinetic energy of the system

Evaluate the mass percentages of copper : A 1.28-gram sample of copper is heated with sulfur to produce 1.60 grams of a copper sulfide compund. Calculate the mass percentages of copper and sulfur in the compund.

Determine what is the rotational inertia of the fly wheel : A block of mass m is attached to a cord that is wrapped around the rim of a flywheel of radius R and hangs vertically, what is the rotational inertia of the fly wheel

Explain average rise in sea level due to thermal expansion : Predict the average rise in sea level due to thermal expansion based on temp changes of 1,2, and 3.5 degrees C given that the volume of the Earth's Oceans is 1.37X10^9 km^3 and the surface area is 361X10^6 km^2, and state the approximations that g..

Find the image position with a ray diagram : An object is 20 cm to the left of a thin diverging lens having a 10 cm focal length. Find the image position with a ray diagram

Ratio of coulomb and gravitational force magnitudes : It is known that the electric force between two objects is muchstronger in magnitude than the attractive gravitational force. Twoparticles of masses 6.01 kg and 1.81 kg and charges 8.82 μC and-1.53 μC respectively are separated by a distance 10.6 ..

User Account

All Pages