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1 year ago

How many molecules of water are there in 8.050 x 10^3 grams of water

Chemistry

1 answer:

rewona [7]1 year ago

3 0

Answer:This is approximately 2.69 * 10^26 molecules.

Explanation:

i just know

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5 The apparatus shown below was set up. Give explanations for the following observations.

lana [24]

Answer:

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Explanation:

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1 year ago

science-what kind of input #o you need to provide to make the pen work. Describe the process and out put that result from the in

seropon [69]

Answer:

10 1/3

Explanation:I looked it UP

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2 years ago

Determine the mass in grams of sucrose that must be added to 26 g of water to make a 1.15 m solution. Enter your answer to 2 dec

True [87]

Answer:

10.23 grams of sucrose should be added.

Explanation:

1.15 m means molality (moles of solute in 1kg of solvent)

1.15 moles of sucrose are contained in 1 kg of solvent (1000 g)

Let's determine the moles in our mass of solvent.

Firstly we convert the g to kg → 26 g . 1kg/1000g = 0.026 kg

m . mass (kg) = 1.15 mol/kg . 0.026kg → 0.0299 moles.

Finally we convert the moles to mass (mol . molar mass)

0.0299 mol . 342.3 g/mol = 10.23 g

4 0

3 years ago

Read 2 more answers

How many moles are 7.25 x 1023 formula units of Mgo ?

romanna [79]

Answer:

<h2>The answer is option D</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{7.25 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{7.25}{6.02} \\ = 1.2043189368...$

We have the final answer as

<h3>1.20 moles</h3>

Hope this helps you

6 0

2 years ago

What is the mass, in grams, of 8 mol of 12c?

Kitty [74]

The mass of 8 mol of ¹²C is 96 g.

Mass = 8 mol × (12 g/1 mol) = 96 g

5 0

2 years ago