Answer:
3.25 mol CO₂
Explanation:
Step 1: Write the balanced equation
C(s) + O₂(g) ⇒ CO₂(g)
Step 2: Establish the appropriate molar ratio
According to the balanced equation, the molar ratio of O₂ to CO₂ is 1:1.
Step 3: Calculate the number of moles of CO₂ produced from 3.25 moles of O₂
We will use the previously established molar ratio.
3.25 mol O₂ × 1 mol CO₂/ 1 mol O₂ = 3.25 mol CO₂
Answer:
The answer to your question is V2 = 0.203 kPa
Explanation:
Data
Volume 1 = V1 = 1l
Pressure 1 = P1 = 101.3 kPa
Volume 2= V2 = ?
Pressure 2 = 500 kPa
Process
- Use the Boyle's law to solve this problem
P1V1 = P2V2
-Solve for V2
V2 = P1V1/P2
-Substitution
V2 = (101.3 x 1) / 500
-Simplification
V2 = 101.3 / 500
-Result
V2 = 0.203 kPa
Answer:
0.705 g/cm³
Explanation:
Step 1: define density
The (volumetric mass) density of a sample or substance, is this sample or substance its mass per unit volume and can be defined through following formula:
ρ = m/v
with ρ = density (kg/m³)
m = mass of the substance (kg )
v = volume (m3)
Step 2: change datat SI-units
10.0 cm³ = 10^-5 m³
7.05 g = 0.00705 kg
ρ = 0.00705 kg / 10^-5 m³ = 705 kg / m³
To convert this to g/cm³ we have to divide by 1000
ρ = 0.705 g/cm³
To control this we calculate 7.05g / 10cm³ = 0.705 g/cm³
The desnity of the alcohol is 0.705 g/cm³
Do you need examples or?
Elements can’t be broken down it’s already the most simplest substance ( eg.oxygen,carbon )- basically your whole periodic table
Compunds can be broken down into elements (eg. carbon dioxide and iron oxide)
Mixtures are just 2 or more compunds chilling with each other and can be broken down (eg. salt and water)
