Answer:
1.33 × 10⁻³ m³
Explanation:
Step 1: Given data
Side of the cube (d): 11.0 cm
Step 2: Calculate the volume of the cube (V)
We will use the following expression.
V = d³
V = (11.0 cm)³
V = 1.33 × 10³ cm³
Step 3: Convert "V" to m³
We will use the conversion factor 1 m³ = 10⁶ cm³.
1.33 × 10³ cm³ × (1 m³ / 10⁶ cm³) = 1.33 × 10⁻³ m³
Answer:
23 moles
Explanation:
Given data:
number of moles of propane = 7.5 mol
Number of moles of carbon dioxide produced = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Now we will compare the moles of propane and carbon dioxide.
C₃H₈ : CO₂
1 : 3
7.5 : 3/1×7.5 = 22.5
22.5≅ 23 moles
Answer:
An experiment is a research method performed within a completely controlled environment that uses groups of individuals ( subjects), one of which the factors being tested are not spplied on, an independent factor of the hypothesys ( to be tested ), for example the resilience of a group of teenagers) and a dependant factor that is applied to check how it varyes depending on the tested factor ( for example, the most challanging experience of their generation)
The answer is 9.03 × 10²⁴ molecules of oxygen!
- <u>Step 1</u> 6.02 × 10²³ molecules : 1 mol = x : 15 mol
- <u>Step 2</u> x = 6.02 × 10²³ molecules * 15 mol * 1 mol
- <u>Step 3</u><em> </em> x = 90.3 × 10²³ molecules
- <u>Step 4</u> x = 9.03 × 10 × 10²³ molecules
- <u>Step 5</u> x = 9.03 × 10²³⁺¹ molecules
- <u>Step 6</u> { x = 9.03 × 10²⁴ molecules }
