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

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

Clues

  • a solution of a known concentration. Standard solutions are normally used in titrations to determine unknown information about another substance. (8, 8)
  • 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 particles in the nuclues. (4, 6)
  • The number of protons in the nucleus of an atom. (6, 6)
  • THe quantity whose unit is the mole. Chemists use 'amount of substance' as a means of counting atoms. (6, 2, 9)
  • 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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