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zimovet [89]
3 years ago
9

29.3g CO2 and 20.8g H2O

Chemistry
1 answer:
docker41 [41]3 years ago
6 0

Answer:

the most best answer is 50.1 you never find such type of answer

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A chemist prepares hydrogen fluoride by means of the following reaction:
natita [175]

Answer:

39.3%

Explanation:

CaF2 + H2SO4 --> CaSO4 + 2HF

We must first determine the limiting reactant, the limiting reactant is the reactant that yields the least number of moles of products. The question explicitly says that H2SO4 is in excess so CaF2 is the limiting reactant hence:

For CaF2;

Number of moles reacted= mass/molar mass

Molar mass of CaF2= 78.07 g/mol

Number of moles reacted= 11g/78.07 g/mol = 0.14 moles of Calcium flouride

Since 1 mole of calcium fluoride yields two moles of 2 moles hydrogen fluoride

0.14 moles of calcium fluoride will yield 0.14×2= 0.28 moles of hydrogen fluoride

Mass of hydrogen fluoride formed (theoretical yield) = number of moles× molar mass

Molar mass of hydrogen fluoride= 20.01 g/mol

Mass of HF= 0.28 moles × 20.01 g/mol= 5.6 g ( theoretical yield of HF)

Actual yield of HF was given in the question as 2.2g

% yield of HF= actual yield/ theoretical yield ×100

%yield of HF= 2.2/5.6 ×100

% yield of HF= 39.3%

4 0
3 years ago
What does “unsaturated” refer to when talking about solutions
vovangra [49]

Answer:

Not saturated

Explanation:

not saturated; having the power to dissolve still more of a substance. Chemistry. (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH2 = CH2; undersaturated.

6 0
3 years ago
Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the
choli [55]

Answer:

...................................................

3 0
3 years ago
Is reacts with acid a chemical or physical property? (WORTH 30 Points.)
Alborosie

Answer:

Metals in general have they chemical property of reacting with an acid. Zinc reacts with hydrochloric acid to produce hydrogen gas. This is a chemical property. Chemical change results in one or more substances of entirely different composition from the original substances.

3 0
3 years ago
Read 2 more answers
How many grams are in 8.3 moles of CaCl2?
r-ruslan [8.4K]

Answer:

(8.3×40)+(8.3×71)

921.3grames

3 0
3 years ago
Read 2 more answers
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