I think its a or b mainly a
I’m sorry if I wasted your time but I think it’s alkali metals but I’m
Not sure
The empirical formula for the citric acid is C₆H₈O₇
<h3>Data obtained from the question </h3>
Divide by their molar mass
C = 37.51 / 12 = 3.126
H = 4.2 / 1 = 4.2
O = 58.29 / 16 = 3.643
Divide by the smallest
C = 3.126 / 3.126 = 1
H = 4.2 / 3.126 = 1.34
O = 3.643 / 3.126 = 1.17
Multiply through by 6 to express in whole number
C = 1 × 6 = 6
H = 1.34 × 6 = 8
O = 1.17 × 6 = 7
Thus, the empirical formula for the citric acid is C₆H₈O₇
Learn more about empirical formula:
brainly.com/question/24818135
Answer:
Explanation:
All you need to know is the atomic mass of platinum, and Avogadro's number.
2.00g Pt divided by atomic mass gives you the moles of platinum, and multiplying by avogadro's number (6.022 x 10^23) gives you the number of atoms.
Atomic mass of platinum can be found on any periodic table.
Hope this helped.
Answer:
Element Properties
atomic number 47
atomic weight 107.868
melting point 960.8 °C (1,861.4 °F)
boiling point 2,212 °C (4,014 °F)
specific gravity 10.5 (20 °C [68 °F])
oxidation states +1, +2, +3
electron configuration [Kr]4d105s1
hope that helps
