Answer:
50.63 cm³
Explanation:
Using Charles law equation as follows:
V1/T1 = V2/T2
Where;
V1 = initial volume (cm³)
V2 = final volume (cm³)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the question, V1 = 45.0 cm³, V2 = ?, T1 = 280 K, T2 = 315 K
Using; V1/T1 = V2/T2
45/280 = V2/315
Cross multiply
45 × 315 = 280 × V2
14175 = 280V2
V2 = 14175 ÷ 280
V2 = 50.625
V2 = 50.63 cm³
Answer:
troposphere
stratosphere
mesosphere
thermospjere
exosphere
Explanation:
this is from the lowest to highest
<span>13.7 g
The balanced formula is:
Pb(ClO3)2(aq)+2NaI(aq) ==> PbI2(s) + 2NaClO3(aq)
The number of moles of NaI we have is the volume of fluid multiplied by the molarity so
0.350 * 0.170 = 0.0595 moles
Since the NaI is the limiting reactant, for every two moles used, we'll produce 1 mole of precipitate. So
0.0595 mole / 2 = 0.02975 mole
Now we need to calculate the molar mass of PbI2. Looking up the atomic weights
Atomic weight Lead = 207.2
Atomic weight iodine = 126.90447
Molar mass PbI2 = 207.2 + 2 * 126.90447 = 461.00894 g/mol
Now multiply the molar mass by the number of moles we have.
461.00894 g/mol * 0.02975 mol = 13.71501597 g
Rounded to 3 significant figures, the answer is 13.7 g</span>
Sodium hydroxide solution 30% CAS 1310-73- 2 Suprapur® - Find MSDS or SDS, a COA, data sheets and more information.
CAS number:
Answer:
B
Explanation:
From charles' law,
where v is volume and t is absolute temperature
- Hence that's it