Answer:
heat energy is released into the surrounding
10 gm salt in 100 ml water- let its concentration be x
We want 2x(A. T. Q)
For decreasing concentration, we need higher solvent(water here)
x= 100ml
2x=2(100)ml
We already had 100 ml
So 200-100=100
100ml is correct
firm support that bears weight of microscope = base
Molarity is expressed as:
Molarity = moles / liter
Given that the cell is rod-shaped, its volume is calculated using the formula for a cylinder's volume:
V = πr²L
V = π * (0.6)² * 4.9
V = 5.54 μm³
1 Liter = 10³ mm³
1 mm = 10³ μm
1 mm³ = 10⁹ μm³
1 liter = 10¹² μm³
So the volume in liters is:
5.54 x 10⁻¹² L
Moles = molarity * liters
Moles = 0.0029 * 5.54 x 10⁻¹²
Moles = 1.61 x 10⁻¹⁴
To get the number of molecules, we multiply the moles by Avagadro's number
Number of molecules = 1.61 x 10⁻¹⁴ * 6.02 x 10²³
There are 9.69 x 10⁹ molecules in the cell
Answer:2NaCl + 2H2O = 2NaOH + Cl2 + H2 this would be the correct balanced equation which the answer would be no
Explanation:When a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction: 2NaCl + 2H2O → 2NaOH + Cl2 + H2. What is the chemical symbol for the starting substance? A NaCl.Apr 14, 2018