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3 years ago

Please help me

SAT

2 answers:

nevsk [136]3 years ago

5 0

At one is C a satellite because it moves around Earth

11Alexandr11 [23.1K]3 years ago

3 0

It is D or C cause the moon could be D OR C

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A salt shaker is filled with 25 g sodium chloride. How many mole(s) of nacl does it contain?

AleksAgata [21]

Considering the definition of molar mass, a salt shaker contains 0.43 moles of sodium chloride.

<h3>Definition of molar mass</h3>

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

<h3>Molar mass of NaCl</h3>

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound NaCl is calculated as:

NaCl= 23 g/mole + 35.45 g/mole

Solving:

NaCl= 58.45 g/mole

<h3 /><h3>Amount of moles of 25 grams of NaCl</h3>

Next, you can apply the following rule of three: If by definition of molar mass 58.45 grams of the compound are contained in 1 mole, 25 grams of the compound are contained in how many moles?

$amount of moles=\frac{25 gramsx1 mole}{58.45 grams}$

<u><em>amount of moles= 0.43 moles</em></u>

Finally, a salt shaker contains 0.43 moles of sodium chloride.

Learn more about molar mass:

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zmey [24]

If she wants the instructions to be performed in a certain order. Then she has to use the online word document for the instruction properly.

<h3>Which type of instructions should be processed in a word document?</h3>

Word documents should be considered if you create any type of document. Use this handy tool to quickly and simply produce a range of professional papers.

This versatile application, which is linked to a personal account, allows you to view your stored files from just about any internet-connected device. You may also transfer data to work online, and they will sync when you return to the internet.

More about the Word document link is given below.

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You need to say what the statements are for us to answer :)

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