How does cells structure relate to its function of the body
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Ответ:
Ответ:
A) 1.67 grams H2CO3
Explanation:
A. This is a gram to gram conversion so first you need to find the atomic mass for 1 mole of Na2CO3 (105.988 grams) you'll then divide by how many grams you have (2.86) by 105.988 which will give you 0.02698419
0.02698419 is how many moles of Na2CO3 you have
Next you'll use the coefficients to find how many moles of H2CO3 you have and since both the coefficients are the same (1) you know you have 0.02698419 moles of H2CO3
You're then going to multiply this by the atomic mass of H2CO3 (62.024 grams) to get 1.6736674 grams of H2CO3
Now convert this number in sig figs
I'm so sorry but I don't know how to do B