Answer:
78.6 lb/ft³
Step-by-step explanation:
Let's do this in steps.
1. Convert grams to pounds
D = (1.26 g/1 cm³) × (1 lb/454 g)
= 2.775 × 10⁻³ lb/cm³
2. Convert cubic centimetres to cubic feet
D = (2.775 × 10⁻³ lb/1 cm³) × (28 317cm³/1 ft³)
= 78.6 lb/ft³
Alcohol is completely soluble in water in any amounts. That is because every alcohol contains carbon chain and OH group which are non-polar and polar. Any substances or solutes that will be mixed with the alcohol you will just get a simple solution.
Answer:
Hope this helps!
Explanation:
The molarity of a given solution is defined as the total number of moles of solute per litre of solution.
\(Molarity = \frac{n}{V}\)
Here,
M is the molality of the solution
n is the number of moles of the solute
V is the volume of solution given in terms of litres
Molecular weight of oxalic acid (H2C2O4.2H2O) = 126 g/mol.
M = n/V
0.1 M = n/0.25L
n = 0. 025 mol
Number of moles = Given mass/Molar mass
0. 025 mol = m / 126
m = 3.15 g
So, amount of oxalic acid is 3.15 g
Answer:
Fission reaction occurs.
Explanation:
When a radioactive atom undergoes a nuclear decay event, spontaneous fission reaction occurs, the decaying nucleus undergoes a transformation in the change in the number of protons in the nucleus. The fission process produces gamma photons, and releases a very large amount of energy. After the radiation stops, a stable element is obtained whereas the energy is released in the surrounding.
