4 moles of NaOH is present in the given 160 grams of NaOH.
<h3>How we calculate moles?</h3>
Moles of any substance will be calculated as:
n = W/M, where
W = given mass of NaOH = 160 grams (given)
M = molar mass of NaOH = 40 g/mole
Moles of NaOH is calculated as:
n = 160g / 40g/mol = 4 moles
Hence, moles of sodium hydroxide (NaOH) is 4 moles.
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brainly.com/question/24322641
Answer:
It copies itself and gives instructions for building cells.
It provides energy to cells and passes from parent to offspring
Explanation:
The DNA is the genetic materials of the cell upon which any form of inheritance is predicated.
This giant molecules is a very important organelle in all living organisms. It has a double helix structure and can be found within the nucleus.
- The DNA copies itself and gives instruction for building cells.
- It has important information needed by the cell to produce protein so DNA replication is a vital process.
- The DNA is also able to ration energy within the cell.
- It passes genetic materials from parents to offspring
1) Chemical equation of the equilibrium
BaCrO4⇄ Ba (2+) + CrO4 (2-)
2) Ksp equation
Ksp = [Ba(2+)] [CrO4 (2-)]
where Ksp = 1.0 * 10^ - 10 and [Ba(2+)] = [CrO4(2-)] = x
3) Calculations
1.0 * 10^ -10 = x * x
=> x^2 = 1.10 * 10^-10
=> x = √[1.0 * 10^ -10] = 0.000010
Answer: [Ba(2+)] = [CrO4(2-)] = 0.00001 M
