Answer:
179.2g of O2
Explanation:
Fir, we must obtain a balanced equation for the reaction.
The equation for the reaction is:
2H2 + 02 —> 2H2O
Next, we find the molar mass of H2 and O2 as shown below:
Molar Mass of H2 = 2x1 = 2g/mol
Mass conc. of H2 from the balanced equation = 2 x 2 = 4g
Molar Mass of O2 =16x2 = 32g/mol
From the equation,
4g of H2 required 32g of O2,
Therefore 22.4g of H2 will require = (22.4x32)/4 = 179.2g of O2
Explanation:
Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph
This is intended as a class practical. It is best if the students work in pairs because setting up and starting the experiment requires more than one pair of hands. One student can add the magnesium ribbon to the acid and stopper the flask, while the other starts the stopclock. During the experiment, one student can take the readings while the other records them. The experiment itself takes only a few minutes. But allow at least 30 minutes to give students time to set up, take readings and draw graph.
please mark as brainliest
<span> because gasoline changes volume as a function of temperature or because there are different grades of gasoline or because the values are given in different units of measure .</span>
HCCH? That would be drawn like shown below. It doesn't look the greatest, sorry about that.
