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2 years ago

how would you determine which layer is organic in a separatory funnel if the density of the soltuions were unkown

Chemistry

1 answer:

ELEN [110]2 years ago

5 0

Answer:

yea ricorico

Explanation:

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50 POINTS! PLS HELP!

Jobisdone [24]

Answer:

please where is the Gibb free energy to indicate if its exothermic or endothermic reaction but the chemical equation is homogeneous one.

3 0

2 years ago

Which geologic era are we living in? paleozoic precambrian cenozoic mesozoic

tangare [24]

We are living in "COENOZOIC ERA".

3 0

3 years ago

Inorganic compounds which are found in the earth are called

saul85 [17]

Answer: The answer would be minerals. Synthetics are made by men, and shouldn't be found in the earth Vitamins are organic Cement is a mixture of an organic compounds and rarely found in nature.

6 0

2 years ago

Calculate the mass percent (m/m) of a solution prepared by dissolving 45.09 g of NaCl in 174.9 g of H2O.

inysia [295]

Answer:

20.3 % NaCl

Explanation:

Given data:

Mass of solute = 45.09 g

Mass of solvent = 174.9 g

Mass percent of solution = ?

Solution:

Mass of solution = 45.09 g + 174.9 g

Mass of solution = 220 g

The solute in 220 g is 45.09 g

220 g = 2.22 × 45.09

In 100 g solution amount of solute:

45.09 g/2.22 = 20.3 g

Thus m/m% = 20.3 % NaCl

5 0

3 years ago

Cu + 2AgNO3 → Cu(NO3)2 + 2Ag

Eva8 [605]

Answer:

$m_{Ag}=135.8gAg$

$Y=88.4\%$

Explanation:

Hello there!

In this case, according to the described chemical reaction, it is possible to compute the theoretical mass of silver as mass via the 1:2 mole ratio of copper to silver and their atomic mass in the periodic table, in order to perform the following stoichiometric setup:

$m_{Ag}=40.gCu*\frac{1molCu}{63.55gCu}*\frac{2molAg}{1molCu}*\frac{107.87gAg}{1molAg}\\\\ m_{Ag}=135.8gAg$

Next, given the actual yield of 120 g, we compute the percent yield via:

$Y=\frac{120g}{135.8g}*100\%\\\\Y=88.4\%$

Regards!

4 0

2 years ago