Quantative chemistery

Question 1

Avagadro s constant

Answer 1

6.023*10 to the power of 23 ( number one mole))

Question 2

Moles=

Formula

Answer 2

Mass/ RAM

Question 3

Mass=

Formula regarding moles

Answer 3

Moles* RAM

Question 4

Why do scientist use percentage yield and atom economy?

Answer 4

To see how efficient the reaction is

Question 5

Yield

Answer 5

Amount of product produced

It is referring to the mass

Question 6

Percentage yield

Answer 6

Shows a percentage of the yield made instead of the expected yield

Question 7

Percentage yield=

Answer 7

(Actual yield/ expected yield) * 100

Question 8

What are other words that mean expected

Answer 8

Theoretical, predicted

Question 9

Maximum mass is the same as…

Answer 9

Expected yield

Question 10

What can cause yield not to become a 100%

Answer 10

The reactants may form an unexpected product
Some product may be lost when the reaction is occurring
the reaction might be reversible
the reaction is incomplete

Question 11

Percentage yield is also a good way…

Answer 11

To spot mistakes

Question 12

When working with moles always round to…

Answer 12

3 significant figures

Question 13

Atom economy

Answer 13

Amount of reactants turned into the useful products

Question 14

Atom economy is also important to see…

Answer 14

the effects on the atmosphere on the reaction

Question 15

Atom economy=

Formula

Answer 15

(Relative formula mass of desired product/ relative formula mass of all reactants)* 100

Question 16

Triangle for concentration( c), number of moles(n), volume(v)

Answer 16

n

c v

Question 17

What is concentration measured in?

Answer 17

mol dm to the power of 3

Question 18

What is volume measured in?

Answer 18

in dm to the power of 3

Question 19

What is numbers of moles measured in in concentration topic

Answer 19

mol/ dm to the power of 3

Question 20

what you have to do to get cm to the power of 3 to dm power of 3

Answer 20

divide by thousand either like N= ( C*V)/ 1000 or after you get the answer