Total weight = 1 + 35.45 + 3 * 16 = 84.45
H = 1 / 84.45 * 100% = 1.18%
Cl = 35.45 / 84.45 * 100% = 41.98%
O = 48 / 84.45 * 100% = 56.84%
1.curium ( 1944 Marie and Pierre Curie
<span>2.einsteinium ( Albert Einstein) </span>
<span>3.fermium (1953 Enrico Fermi) </span>
<span>4.mendelevium (1955 Dmitri Mendeleev, who devised first Periodic Table) </span>
<span>5.nobelium ( 1957 Alfred Nobel) </span>
<span>6.niobium (1801 Niobe/ daughter of Tantalus) </span>
<span>7.samarium (1879 Samarski, a Russian engineer) </span>
<span>8.titanium (1791 Greek mythology, Titans, first sons of earth) </span>
<span>9.thorium ( 1819 named after Thor of course !!!:) ) </span>
<span>10.tantalum ( 1802 Tantalus of Greek mythology) pick which ever best that your more into hope this helped you alot:/</span>
After ion exchange with zeolite in water filter to remove calcium by substitute natrium ion with calcium ion, the weight of zeolite become 1.9578 kg.
ion exchange calculation can be done by using basic stoichiometry if we know how the reaction of the ion exchange. In this case where zeolite with natrium ion will be exchanged with calcium. The reaction of exchange will be like this:
⇒ 
Calculate the molecule weight of both zeolite
Atomic weight data:
Na = 23 gram/mole
Si = 28 gram/mole
Al = 27 gram/mole
O = 16 gram/mole
Ca = 40 gram/mole
Molecule weight
= 142 gram/mole
= 278 gram/mole
Calculate mole from 2kg of zeolite with natrium :
2000 gram/ 142 = 14.0845 mole
Based on the stoichiometry, we got the mole of zeolite with calcium:
14.0845 mole x 1/2 = 7.0423 mole
Weight of zeolite after the ion exchanged with calcium:
7.0423 mole x 278 = 1957.8 gram = 1.9578 kg
Learn more about ion exchange here: brainly.com/question/28203551
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