3 years ago

A desk measures 42 inches long. How many meters is that?

Chemistry

2 answers:

Montano1993 [528]3 years ago

8 0

Answer:1.067

Explanation:

look it up

Blababa [14]3 years ago

3 0

The answer to 42inches as meters is 1.07 meters

You might be interested in

True or False: As the ice warms up, the molecules get more energy and move around more from place to place to form liquid water.

Arada [10]

The answer is TRUE.

Hope it helps.

7 0

3 years ago

Read 2 more answers

Two colorless solutions are mixed together bubbles form as the solution is stirred give to possible explanations for this result

Aleks [24]

One possible answer could be that a chemical reaction has occurred.

5 0

3 years ago

The chart below includes images of different structures found in animals or plants. For each structure, describe the smaller liv

Lady_Fox [76]

Gggfvmkjhgtfgjjhghhhhfddfgghhjjjjjjjj

5 0

3 years ago

Which element, Sulfur or Chlorine, would have the higher first ionization energy?

Lyrx [107]

Answer:

Chlorine

Explanation:

7 0

3 years ago

Read 2 more answers

Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be

vlabodo [156]

Answer:

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

Explanation:

Mass of bottle = 10.221 g

Mass of bottle with aluminium pieces = 11.353 g

Mass of aluminium = 11.353 g - 10.221 g = 1.132 g

Mass of alum and bottle = 19.230 g

Mass of alum = 19.230 g - 10.221 g = 9.009 g

Experimental yield of alum = 9.009 g

Theoretical yield of alum:

$2Al(s) +2 KOH(aq) +4H_2SO_4(aq)+10 H_2O(l) \rightarrow 2 KAl(SO_4)_2.12 H_2O(s)+3H_2(g)$

Moles of aluminium = $\frac{1.132 g}{27 g/mol}=0.041926 mol$

According to reaction, 2 moles of aluminum gives 2 moles of alum.

Then 0.041926 mol aluminium will give :

$\frac{2}{2}\times 0.041926 mol=0.041926 mol$ of alum.

Mass of 0.041926 moles of alum:

0.041926 mol × 474 g/mol= 19.873 g

Theoretical yield of alum = 19.873 g

Percentage yield:

$\% Yield =\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100$

Percentage yield of the alum:

$\% Yield =\frac{ 9.009 g}{19.873 g}\times 100=45.33\%$

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

7 0

4 years ago