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saveliy_v [14]
3 years ago
12

Decide which liquid does not belong in a science laboratory. water hydrochloric acid milkshake ethanol

Chemistry
2 answers:
Xelga [282]3 years ago
8 0
Milkshake, i say this because for one we're not supposed to have drinks in the lad and for two it obviously has no purpose there.
Anon25 [30]3 years ago
7 0

Answer: milkshake

Explanation:

A science laboratory is a place where potentially reactive and harmfull chemicals can be found. Chemicals like hydrochloric acid, ethanol, and useful neutral solvent like water can also be found in the science laboratory.

Milkshake is a liquid mixture that can be found in the kitchen or restaurant.

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how many grams of calcium sulfate are produced from 10 grams of calcium nitrate and how many grams of calcium sulfate are produc
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Answer:  8.30 g of calcium sulfate are produced from 10 grams of lithium sulfate.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} Ca(NO_3)_2=\frac{10g}{164g/mol}=0.061moles

\text{Moles of} Li_2SO_4=\frac{10g}{110g/mol}=0.091moles

Ca(NO_3)_2+Li_2SO_4\rightarrow 2LiNO_3+CaSO_4  

According to stoichiometry :

1 mole of Ca(NO_3)_2 require = 1 mole of Li_2SO_4

Thus 0.061 moles of Ca(NO_3)_2 will require=\frac{1}{1}\times 0.061=0.061moles  of Li_2SO_4

Thus Ca(NO_3)_2 is the limiting reagent as it limits the formation of product and Li_2SO_4 is the excess reagent.

As 1 mole of Ca(NO_3)_2 give = 1 mole of CaSO_4

Thus 0.061 moles of Ca(NO_3)_2 give =\frac{1}{1}\times 0.061=0.061moles  of CaSO_4

Mass of CaSO_4=moles\times {\text {Molar mass}}=0.061moles\times 136g/mol=8.30g

Thus 8.30 g of calcium sulfate are produced from 10 grams of lithium sulfate.

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