Answer:
Explanation:
To convert from moles to grams we must use the molar mass, which can be found on the Periodic Table.
- Aluminum (Al): 26.981538 g/mol
Use this number as a fraction.
Multiply by the given number of moles.
The moles of aluminum will cancel.
The original number of moles, 0.500, has 3 significant figures, so our answer must have the same.
For the number we calculated, that is the tenth place. The 9 in the hundredth place tells us to round the 4 to a 5.
There are about <u>13.5 grams of aluminum</u> in 0.500 moles.
<h3>
Answer:</h3>
Cytokinesis in animal cells occur by cleavage while in plants it occurs through the formation of a cell plate.
<h3>
Explanation:</h3>
- Cytokinesis refers to the process through which the cytoplasm divide in animal and plant cells.
- It occurs after the division of the nucleus.
- Cytokinesis in animal cells differs from that in plant cells in that, in animal cells it occurs by cleavage while in plant cells cytokinesis occurs through the formation of a cell plate.
- In animal cells, cleavage occurs as a result of the activity of actin and myosin which results to dividing of cytoplasm in to two.
- In plant cells, cell plate is formed by the fusion of golgi bodies on the equator which will generate cell wall and the plasma membrane between daughter cells.
Given :
Number of molecules of 
.
To Find :
How many moles are in given number of molecules.
Solution :
We know, in 1 moles of any element/compound contains 
at atoms/molecules.
So, number of moles in 
molecules are :
Therefore, number of moles are 8.97 .
Answer:
463.0 g.
Explanation:
- We can use the following relation:
<em>n = mass/molar mass.</em>
where, n is the mass of copper(ii) fluoride (m = 4.56 mol),
mass of copper(ii) fluoride = ??? g.
molar mass of copper(ii) fluoride = 101.543 g/mol.
∴ mass of copper(ii) fluoride = (n)(molar mass) = (4.56 mol)(101.543 g/mol) = 463.0 g.
Answer:
International System of Units
Definition: A system of physical units ( SI units ) based on the metre, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes to indicate multiplication or division by a power of ten.
Hope this helps!
