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lutik1710 [3]
4 years ago
6

Hurricane form over ___ tropical seas

Chemistry
2 answers:
N76 [4]4 years ago
5 0
Antarctica has lots of penguins
mr Goodwill [35]4 years ago
3 0

Answer:

WARM

Explanation:

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if 0.953 g of copper was actually recovered at the end of the entire experiment, what would be the percent yield?
GrogVix [38]

Here is the full question:

Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)

1.000 g copper wire is reacted with 10 mL of concentrated nitric acid (16M). If 0.953 g of copper was actually recovered at the end of the entire experiment, what would be the percent yield?

Answer:

95.30 %

Explanation:

equation for the reaction is given as:

Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)

1.00 g of Cu = \frac{1.00}{63.54 mol of Cu}

= 0.01574 mol of Cu

10 mL of 16 M HNO3 = 10*\frac{16}{1000 mole of HNO3}

= 0.16 mol of HNO3

However, from both variables; we can arrive at a conclusion that Cu is the limiting reagent.

therefore % yield = = 4.70 %

Percentage yield = \frac{actual yield}{theorectical yield} *100%

Percentage yield = \frac{0.953}{ 1.000}* 100%

Percentage yield = 0.953 × 100%

Percentage yield = 95.30 %

3 0
3 years ago
When may a hypothesis be revised?
Mashutka [201]
When it has been disproven
3 0
3 years ago
The immediate destructive action of a nuclear explosion is caused by this.
Delicious77 [7]
<span>The immediate destructive action of a nuclear explosion is caused by shock. The answer is letter D. The shock wave cause an instantaneous jump in pressure at the schock front. The combination of the pressure produced in the front and the jump causes the damage.</span>
4 0
4 years ago
Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock.
Sphinxa [80]
ANDESITE is a fine grained rock that formed when magma irrupt it onto the surface and crystallized quickly ANDESITE & DIORITE have a composition that is intermediate between basalt.This is because their parent magmas formed from the PARTIAL melting of a BASALTIC oceanic plate.
7 0
3 years ago
There are 64 pretzels in a 16-ounce bag how many proportion would be in a 5-ounce bag?
qwelly [4]

Answer:

20 pretzels.

Explanation:

So in the first bag there at 64 pretzels in 16-ounces.

We can divide both these numbers by 16, to get 4 pretzels per ounce.

If we multiply both numbers by 5, we get 20 pretzels per ounces.

So, 20 pretzels i5-ounce bag.

3 0
3 years ago
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