Answer:
The correct option is GRADUATED CYLINDER.
Explanation:
Each of the glassware used in the laboratory has its specific functions. The graduated cylinder is especially manufacture to facilitate the measurement of accurate volume of liquids in the laboratory. Measurements obtained by means of graduated cylinder can be considered to be moderately accurate; volumentric flasks are more accurate than graduated cylinder and should be used when higher precision are required.
Answer:
transfer pipet that had markings every 0.1 mL.
Explanation:
Answer : The value of 'R' is 
Solution : Given,
At STP conditions,
Pressure = 1 atm
Temperature = 273 K
Number of moles = 1 mole
Volume = 22.4 L
Formula used : 
where,
R = Gas constant
P = pressure of gas
T = temperature of gas
V = volume of gas
n = number of moles of gas
Now put all the given values in this formula, we get the values of 'R'.
Therefore, the value of 'R' is .
To solve this problem all you would have to do is to use the stoichiometric ratio of 1 mol of Oxygen would react with 2 mol of H2O, to find moles of water produced.
1 mol of O2 = 2 mol of H2O
20 mol of O2 = 40 mol of H2O.
The moles of water produced would be 40 moles.
Answer:
Explanation:
<h2>Electromagnetic waves differ from <em>mechanical waves </em>in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.</h2>
