How many kilograms are in 4 moles of Na2CO3?

Question

anonymous · Answer

Whats the molar mass of that? I don't have a periodic table so I keep asking

lukecrayonz · Answer

zbay, http://www.webqc.org/mmcalc.php for future use:)

lukecrayonz · Answer

Molar mass of Na2CO3 is 105.9886 g/mol

anonymous · Answer

$$4 mole Na_2CO_3(\frac{105.99 g Na_2CO_3}{1 mole Na_2CO_3})(\frac{1 kg}{1000 g })=.424 kg Na_2CO_3$$

anonymous · Answer

Is the equation loading or does it look all crazy for you?

lukecrayonz · Answer

Looks fine:)

anonymous · Answer

ok cool

anonymous · Answer

let me first tell u how to calculate molar mass ok?
u need to find of Na2CO3
so add the molar masses of the elements together multiplying them with their respective subscripts
so here it goes like this Na= 23
C=12
O=16
so Na2CO3=2(23)+12+3(16)=46+12+48=96

xishem · Answer

$$46+12+48=106$$

anonymous · Answer

now 1 mole of sodium carbonate has 96 grams so 4 moles will have 4x106=424 oh yeah sry

anonymous · Answer

oops sry now that means one mole of Na2CO3 will have 106 grams

anonymous · Answer

thanks

xishem · Answer

To get the final answer, you need to convert to kg (:.

anonymous · Answer

well that is easy enough... from here the question can b done by the asker himself yhe main question has been solved isnt it?
even so the answer is .106 kg ok?

xishem · Answer

Well, zbay has already answered the question.

It's .424kg of Na_2CO_3

anonymous · Answer

yeah...

anonymous · Answer

hah i again forgot to multiply by 4 wat a shame
yeah k the answer is .424 kg i m really sry

xishem · Answer

Don't be sorry! We're all learning here.