kishae15 kishae15

11-02-2021
Chemistry

contestada

how many moles are in 5g of Na2CO3?
a) 0.047
b) 1
c) 2
d)21.2

Respuesta :

waleedkhan001002 waleedkhan001002

11-02-2021

Answer:

0.047

Explanation:

Data : 5g , Na2CO3

Formula:

Molecular mass of Na2Co3 = no.of atomic mass x no. of atom

moles = mass÷ molecular mass

molecular mass = 2(23)+1(12)+3(16)

=106amu

moles = 5÷106

= 0.047 Ans:

Answer Link

Otras preguntas

One claim about the Berlin Wall

what are three subatomic particles

I need help on how to do combinations

Sort these elements into pairs that would most likely exhibit similar chemical properties. It doesn't matter which pair goes in which box, so long as the correc

Which is a type of epithelial tissue? A) The skin on your hand B) cardiac muscle C) neurons D) cartilage?

Which course must first-time drivers in Florida take to be eligible for their Learner License? A. Effects of Alcohol and Substance Abuse course B. Thirty hour

Dante's The Divine Comedy BEST illustrates the ideals of humanism because

Oli and Sanjay help organise a village festival.On the morning of the festival a parade Will travel through the village to the park.the parade will start at 11:

What is a portion of a country that is separated geographically from the mainland

true or false vitamin k is necessary for the absorption of vitamin B12 from the intestines