Atoms and Reactions - Part 1, As, Unit 1, Module 1

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R E Q D S N C E S X Q C M N E R E O C G D
V T F V S M E X P E P D O C E E F J Y O G
N H A I A N M J X K U R L R B L P X X U B
H E Q N M E P F O S Q N E J P A J J B O F
D A A O A M I F L M K O C V J T B I M T J
J V M I L I R N E I Y I U M D I I G W F D
K O O T U C I S D L S T L S U V D V O P E
H G L A M Q C R Q D T U A D I E R B V Y J
V A A R R P A E I K O L R K M A W Y I U T
E D R T O R L B X H I O F K M T F P J T O
N R V N F P F M N W C S O H R O S F O T D
P O O E E U O U N U H D R P Y M B B F N O
P C L C V A R N V Y I R M S S I M B B A A
R O U N I H M C H X O A U Q S C Y P M A Y
Q N M O T B U I G F M D L V R M O J L R G
P S E C A O L M L P E N A W X A Y N H L U
K T U M L O A O N B T A S I T S Q V K E H
U A V L E T T T J L R T H K V S V K C X U
A N L X R H W A M N Y S H W T X I P E W F
W T T Q M A O V T N G C X Q P C H I G V R
J J C F A P O J X D R I U E I L D O U W C

Clues

  • a solution of a known concentration. Standard solutions are normally used in titrations to determine unknown information about another substance. (8, 8)
  • The actual number of atoms of each element in a molecule. (9, 7)
  • The amount of solute, in mol, dissolved per 1 dm3 of solution. (13)
  • the molar relationship between the relative quantities of substance taking part in the reaction. (13)
  • The number of atoms per mole of the carbon-12 isotope (6.02x10^23 mol^-1). (3, 8, 8)
  • The number of protons in the nucleus of an atom. (6, 6)
  • The simplest whole-number ratio of atoms of each element present in a compound. (9, 7)
  • The volume per mole os a gas. The units of molar volume are dm3 mol-1. At room temperature and pressure, the molar volume is approximately 24.0dm3mol-1. (5, 6)
  • The weighted mean mass of a formula unit compared with one-twelfth of the mass of an atom of carbon-12. (8, 7, 4)
  • The weighted mean mass of an atom of an element compared with one-twelfth of the mass oof an atom of carbon-12 (8, 6, 4)

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