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3 years ago

What is scientific notation

Chemistry

1 answer:

forsale [732]3 years ago

8 0

scientific notation is a mathematical way to turn large of small numbers into a simpler form.

ex. 9000000000 is 9*10^9 in scientific notation

ex. 0.000000009 is 9*10^-9 in scientific notation

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What is the purpose of a drying agent in the work up of an organic reaction?

vladimir1956 [14]

Answer:To absorb small amounts of water in an organic solution.

Explanation:A drying agent is added to absorb small amounts of water, usually from an organic solution after its separation from an aqueous solution.

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2 years ago

Will give most brainly.

Anna [14]

Answer:

One mole

Explanation:

It tells u the concentration

8 0

2 years ago

19. What is sthe mass of 6.02 x 1024 atoms

alekssr [168]

The mass of magnesium in $6.02 \times 10^{24}$ atoms is 240 g.

Answer: Option A

<u>Explanation:</u>

First, we have to convert the atoms to moles of magnesium.

We know that $6.02 \times 10^{24}$ atoms are present in 1 mole of magnesium. So,

$\text { 1 atom }=\frac{1}{6.02 \times 10^{24}} \text { moles }$

$6.02 \times 10^{24} \text { atoms }=\frac{6.02 \times 10^{24}}{6.02 \times 10^{23}} \text { moles }=10 \text { moles }$

Thus,

$Mass of M g= molar mass of M g \times No. of moles of M g$

$\text { Mass of } M g=24 \times 10=240 g$

Thus, 240 g of Magnesium is present in $6.02 \times 10^{24}$ atoms.

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3 years ago

How does chemistry affect the clothes you wear

tia_tia [17]

❤️ Textile chemistry is a highly specialized field that applies the principles of chemistry to the production of textiles, such as those used in clothing, furniture, tire yarn, air bags, and much more. ... It also encompasses organic chemistry in the synthesis and formulation of the products used in these processes.

Have a great day!!

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3 years ago

A school has 8 period in a day such the each periods is of 35 minutes.lf the number of period is reduced to 7, then how long wou

scZoUnD [109]

Answer:

45 minutes about

Explanation:

i think because i have 7 periods with 45 minutes each

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3 years ago