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2 years ago

What is the number of grams in 1.25x10^25 molecules of aluminum oxide

Mathematics

1 answer:

aalyn [17]2 years ago

7 0

Answer:

Mass = no. of molecules / 6.023 * 10^ 23 * Molar mass

Step-by-step explanation:

Molar mass of CO2 = 44g/mol

1.5

⋅

6.023

⋅

= 51.5 moles of CO2

51.5

⋅

44g/mol

2266 grams

Hope this helped

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The volume of a cylinder is 2,200π cubic inches. The diameter of the circular base is 10 inches. what is the height of the cylin

umka21 [38]

If the diameter of the cylinder's base is 10, then the radius is half that, or 5.

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad 
\begin{cases}
r=radius\\
h=height\\
------\\
r=5\\
V=2200\pi 
\end{cases}\implies 2200\pi =\pi (5)^2h
\\\\\\
\cfrac{2200\pi }{\pi (5)^2}=h\implies \cfrac{2200}{25}=h\implies 88=h$

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2 years ago

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A school cafeteria uses 10

gladu [14]

Using proportions, it is found that there are 5 cups of milk in each bowl of chocolate pudding.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The cafeteria used 10 quarts for 8 bowls, hence the number of quarts per bowl is:

10/8 = 1.25

Each quart has 4 cups, hence the number of cups is:

4 x 1.25 = 5 cups.

More can be learned about proportions at brainly.com/question/24372153

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1 year ago

Whats the sum of (-3)+(-5)

Flura [38]

the answer is -8. have a nice day!⭐️

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2 years ago

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the figure on the left represents a scale drawing 5yd. of the figure on the right 2 in. what is the scale?

Nikolay [14]

Answer:

90 : 1

Step-by-step explanation:

1 yard = 36 inches

5 yards = 36×5 = 180 inches

180 : 2

90 : 1

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2 years ago

When downloading a large file from the internet Alice interrupted the download by closing her computer. Later that evening she r

Temka [501]

Using the slope concept, it is found that the rate of download of the file is of 1920 MB/s.

<h3>What is the slope?</h3>

The slope of a linear function is given by the <u>change in the output divided by the change in the input</u>.

In this problem:

3 minutes since resuming the download 6720 total MegaBytes (MB).

5 minutes since resuming the download 10560 total MegaBytes (MB) of the file had been downloaded..

Hence, in 2 minutes, there was a change of 10560 - 6720 = 3840 MB, which means that the slope is:

$m = \frac{3840}{2} = 1920$

The rate of download of the file is of 1920 MB/s.

You can learn more about the slope concept at brainly.com/question/25934562

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1 year ago