Home > categories > Minerals & Metallurgy > Dolomite > Need Help With Chemistry Homework?
Question:

Need Help With Chemistry Homework?

What is the mass percent of dolomite in the soil?To find the mass percent of dolomite [CaMg(CO3)2] in a soil sample, a geochemist titrates 11.85 g of soil with 34.60 mL of 0.2516 M HCl.

Answer:

CaMg(CO3)2 + 4 HCl -- CaCl2 + MgCl2 + 2H2O + 2CO2 Get the moles of what?? from what you are given moles of HCl . 0.03460 L X 0.2516 mole/L 0.00870536 moles HCl used 0.00870536 X [1 mole CaMg(CO3)2 / 4mole HCl] 0.00217634 mole CaMg(CO3)2 convert to mass with the molar mass 0.00217634 mole X [ 184.3 g/mole ] 0.4011 g % [0.4011 g / 11.85 g] X 100 3.38 %
The bar could be part of the suspension or a stabilizer bar. ONLY cure is replacement of the bar. IF you are going to be working under the vehicle use JACKSTANDS not a jack to hold the vehicle up and be sure they are correctly placed. Be more careful next time. Mistakes happen, and nobody is perfect.
the least confusing way is to tug the carpet up and hammer it out. you're gonna could get rid of the seats and any plastic trim by technique of the door to get at it.locate the middle of the bulge and positioned a block of wood like a 4x4 on there and whack it some situations until finally it is going down. its not the suitable thank you to do it yet once you have not have been given the equipment for physique artwork like a steel dolly to pass in the back of, it relatively is a trend to pass
There is a name badge somewhere on the outside of the car. Go see what it is so someone here has a clue as to what it might be that your working on.

Share to: