Answer:
80.2L
Explanation:
Given parameters:
Initial volume of oxygen = 47.2L
Initial pressure of oxygen = 1240torr
Final pressure = 730torr
Unknown:
Final volume = ?
Solution:
To solve this problem, we apply the Boyle's law proposed by Robert Boyle. It states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".
Mathematically;
P₁V₁ = P₂V₂
P and V are pressure and volume
1 and 2 are initial and final states
1240 x 47.2 = 730 x V₂
V₂ = 80.2L
In my point of view, the simple thing to do here is just to exchange the 3+ and the 2- and you will get:
Al2(CO3)3
The logic behind this is that when you have 2 Al^3+, it makes an overall charge of 6+. Additionally, when you have 3 CO^2-, it also makes an overall charge of 6- (because 3 X 2 = 6). Therefore, 6+ and 6- "cancelled" out, and you will have a neutral charge compound.
I hope you understand
Answer:
Such reaction's kinetics is slow.
Explanation:
Hello,
In this case, in quantitative analysis when using sodium it is mandatory to use a glass buret for titrations as it is accurate in terms of measuring volume; however, when sodium hydroxide is in contact with the glass, a very slow rate is present when it reacts with the silicates in the glass, forming sodium silicate, such rate is in the order of 1.3×10⁻⁴ and 4.3 × 10⁻⁴ g/(m² s). In this manner, as an experiment does not take more than 10 minutes (typical titrations) the time is not enough to for a considerable amount of sodium silicate, that is why its use is widely enforced.
Best regards.
Lithium is Li
<span>Oxygen gas is O2 </span>
<span>Lithium oxide is Li2O </span>
<span>Unbalanced Equation is Li + O2 --> Li2O </span>
<span>There's one O on right side, 2 Os on left, so make coefficient 2 on right side to balance the oxygens. </span>
<span>Li + O2 --> 2 Li2O </span>
<span>Now balance the lithiums. There are 4 Lis on right side; 1 Li on left, so make Li coefficient 4 to balance the lithiums. </span>
<span>4 Li + O2 --> 2 Li2O </span>
<span>This equation is now fully balanced. </span>
<span>Therefore balanced equation is: </span>
<span>4 Li + O2 --> 2 Li2O</span>
Answer:
a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
hope this helps
have a good day :)
Explanation: