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3 years ago

14

A solution that contains a small amount of salt in a large amount of water is said to be a -----solution?

1 answer:

Tems11 [23]3 years ago

5 0

It's a saline solution, commonly used in many ways, primarly in chemistry and medicine (i.e. in intravenous therapy, nasal lavage or in biological and chemical experiments), but also for cleaning new piercings or rinsing contact lenses.

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What is the percent composition of nitrogen in Ca(NO3)2?

MrMuchimi

Nitrogen in this compound has 2 atoms. 2 multiplied by its mass, 14.007, equals 28.014. Divide 28.014 by the molar mass of calcium nitrate: 28.014/164 = 0.17081. Multiply this by 100 to achieve its percentage: 0.17081 x 100 = 17.08%

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4 years ago

What is the name and formula of the principal aluminium compound in it?

mylen [45]

The formula is Al2O<span>3. 2 aluminium and 3 oxygen
</span><span />

4 0

4 years ago

Read 2 more answers

What is the molarity if a solution that contains 289 grams of sugar in a 2 liter solution?? Molar mass of source is 342.2965g/mo

Olegator [25]

<u>Answer;</u>

= 0.422 M

<h3><u>Explanation;</u></h3>

Molarity or concentration is the number of moles of a solute in 1 liter of a solution.

Therefore; Molarity = n/V ; where n is the number of moles and V is the volume of the solution in L.

Number of moles = Mass/molar mass

= 289 g/342.2965g/mol

= 0.844 Moles

Therefore;

Molarity = 0.844 moles/ 2L

= 0.422 M

8 0

4 years ago

If the length, width, and height of a box are 10.00 cm, 7.25 cm and 3.00 cm, respectively, what is the volume of the box in unit

Blizzard [7]

<u>Answer:</u>

<u>For a:</u> The volume of the box is 217.5 mL

<u>For b:</u> The volume of the box is 0.2175 L

<u>Explanation:</u>

The box is a type of cuboid.

To calculate the volume of cuboid, we use the equation:

$V=lbh$

where,

V = volume of cuboid

l = length of cuboid = 10.00 cm

b = breadth of cuboid = 7.25 cm

h = height of cuboid = 3.00 cm

Putting values in above equation, we get:

$V=10.00\times 7.25\times 3.00=217.5cm^3$

<u>For a:</u>

To convert the volume of cuboid into milliliters, we use the conversion factor:

$1mL=1cm^3$

So,

$\Rightarrow 217.5cm^3\times (\frac{1mL}{1cm^3})\\\\\Rightarrow 217.5mL$

Hence, the volume of the box is 217.5 mL

<u>For b:</u>

To convert the volume of cuboid into liters, we use the conversion factor:

$1L=1000cm^3$

So,

$\Rightarrow 217.5cm^3\times (\frac{1L}{1000cm^3})\\\\\Rightarrow 0.2175L$

Hence, the volume of the box is 0.2175 L

3 0

4 years ago

Write the formula: carbon hexabromide

KATRIN_1 [288]

Answer: C2Br6

Explanation:

8 0

3 years ago