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cupoosta [38]
2 years ago
13

Give the name, atomic symbol, and group number of the element with each Z value, and classify it as a metal, metalloid, or nonme

tal:
(a) Z = 33
Chemistry
1 answer:
SashulF [63]2 years ago
5 0

Arsenic is the element having z=33

How to find these valves of Z=33?

So, we are going to find out the name, symbol and group numbers element from the given Z value and classifiy as a metal, metalloid, or nonmetal.

Z =33 (Given)

So, atomic number of the element is 33.

Also, the name of the element is Arsenic.

Atomic symbol of the Arsenic  is As

The group number of As is 5A (15)

As is a metalloid.

Hence ,the element is As having z=  33

learn more about z valve here :

brainly.com/question/930789

#SPJ4

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 The number of calcium  atoms  that would  be in a  100 g sample of calcium  is 1.505 x 10²⁴  atoms

     <u><em>calculation</em></u>

Step 1 ; find the  moles of calcium

moles = mass÷  molar mass

from periodic table the  molar mass of Ca =40 g/mol

moles is therefore = 100 g÷ 40 g/mol = 2.5 moles

Step 2: use the Avogadro's  law constant to determine the number of atoms  of Calcium

That is According  Avogadro's law   1 mole = 6.02 × 10²³  atoms

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 {(2.5  moles  ×  6.02×10²³  atoms)  / 1 mole}  = 1.505  ×  10²⁴  atoms


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3 years ago
A student measures the absorbance of a sample of red dye #3 using a spectrophotometer. If the absorbance is measured as 0.468, w
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5.88 μM is the concentration of red dye in the sample.

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Given, A = 0.468, l = d = 1.00 cm,c = ?

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(1 L= 1,000,000 \mu L)

5.88 μM is the concentration of red dye in the sample.

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