What is the purpose of the graduated cylinder in the collection of hydrogen gas by water displacement?
A graduated cylinder is a laboratory equipment. Its purpose in the collection of hydrogen gas by water displacement is for measuring and mixing the volume of liquid.
Explain why hydrogen gas is given off when a reactive metal undergoes a single-displacement reaction with water?
It doesn't cost anything because they won't sell you just one atom of it. It is a reactive product, so if you put hydrogen in a cylinder for sale the cylinder will be full of hydrogen molecules--H2. As far as what a whole cylinder of it costs, it depends on where you are and how large of a cylinder you want.
Hydrogen is a gas and would have to be stored under high pressure in a car to be used as a fuel. In the event of a crash with a car containing a cylinder of pressurized hydrogen the cylinder could rupture and any sort of ignition would cause the very flammable hydrogen to catch resulting in an explosion. A cylinder containing hydrogen in a car is a potetnial bomb. This is why the use of…
because in the preparation of hydrogen gas ......granulated zinc is used n which is the purest form of zinc. if granulated zinc reacts with dilute sulphuric acid .....there , a displacement reaction takes place but the purest form of zinc don't react with concentrated sulphuric acid ..... . i.e ....there will be no displacement reaction ....so hydrogen gas will not be formed
Why can't pressurized hydrogen be contained in a cylinder the size of a car gas tank in order to power cars?
In order to store enough hydrogen gas, very high pressure and low temperatureis needed. The walls of the cylinder must also be sufficiently thick that will cause it to be very heavy. Thus impractical. ---------- The essential problem is that hydrogen has low energy capacity by volume in comparison with hydrocarbons.