Flame tests + photometry

Question 1

Explain the method for flame tests

Answer 1

1)light bunsen burner, hot blue flame
2)pick up sample of test substance with platinum wipe loop cleaned in HCL
3)Hold close to flame

Question 1

What is a flame test

Answer 1

identifys metal ions

Question 2

What colour does lithium turn

Answer 2

red

Question 3

What colour does sodium turn

Answer 3

yellow

Question 4

What colour does pottasium turn

Answer 4

lilac

Question 5

What colour does calcium turn

Answer 5

orange-red

Question 6

What colour does copper turn

Answer 6

blue-green

Question 7

Why is flame photometry better

Answer 7

sensitivity, accuracy, speed

Question 8

What does intensity indicate

Answer 8

concentration of that ion in solution

Question 9

How can you find the cons from intensity

Answer 9

calibration curve