Physics, 05.03.2021 14:00 kileylynn

Copper(II) oxide reacts with dilute sulphuric acid according to the following equation. CuO + H2SO4 = CuSO4 + H2O
A student uses this reaction to prepare crystals of copper(II) sulphate.

(a) To make sure that the crystals are pure, an excess of copper(II) oxide must be used

(i) Explain why an excess of copper(II) oxide must be used to ensure purity of the
crystals.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:10, SKYBLUE1015

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Answers: 2

continue

Physics, 22.06.2019 00:20, pooperjooper

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

Answers: 2

continue

Physics, 22.06.2019 00:30, kate6218

Which type of wave can travel without a medium

Answers: 1

continue

Physics, 22.06.2019 03:00, janeou17xn

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process

Answers: 1

continue

You know the right answer?

Copper(II) oxide reacts with dilute sulphuric acid according to the following equation. CuO + H2SO4...