Which could be sources of error in the lab? check all that apply. measurement of volumes when making the serial dilutions approximating the ph based on matching colors between ph papers miscalculation of ph values using the reference tables not boiling the cabbage long enough or hot enough to make the indicator solution using distilled water to make your dilutions instead of sea water

I know this maybe late but

-measurement of volumes when making the serial dilutions

-approximating the pH based on matching colors between pH papers

-miscalculation of pH values using the reference tables

-not boiling the cabbage long enough or hot enough to make the indicator solution

Hope this helps anyone who still needs it :)

a. they are both space stations

happy to

pls mark as brainliest.

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"