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ELEN [110]
3 years ago
5

I think this is Chemistry but it might be physics

Chemistry
1 answer:
arlik [135]3 years ago
8 0

Answer:

No it is not a physics because in this there is about classification of element so it is in chemistry that's why it is not physics.

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What mass of potassium iodide is needed to prepare 5.60 L of a 1.13 M solution
MrMuchimi
Given that the question gives us concentration (M) and volume, we can use these so get moles. remember that Molarity (M)= mol/ Liters, so if we want the moles, then

moles= M x L

moles= 1.13 x 5.60= 6.33 moles KI

now to get the mass in grams, we need the molar mass of potassium iodide (KI) which can be determined using the periodic table and add the masses of each atom.

molar mass KI= 39.1 + 127= 166.1 g/mol

6.33 mol (166 g/ 1 mol)= 1050 grams KI


8 0
3 years ago
typical seawarer contains 2.7g of salt (sodium chloride,Nacl)per 100ml (100*10-3L).what is the molarity of Nacl in the ocean?​
faust18 [17]

Answer:

Molarity = 0.5 M

Explanation:

Given data:

Mass of NaCl = 2.7 g

Volume = 100 mL(100×10⁻³L)

Molarity of solution = ?

Solution:

Formula:

Molarity = number of moles / volume in litter

Number of moles:

Number of moles = mass/ molar mass

Number of moles = 2.7 g/ 58.5 g/mol

Number of moles = 0.05 mol

Molarity = number of moles / volume in litte

Molarity = 0.05 mol / 100×10⁻³L

Molarity = 0.5 M

4 0
3 years ago
three disaccharides are important in the human diet: sucrose, lactose, and maltose. click and drag the monosaccharides to build
Paul [167]

The monosaccharides to build each of the disaccharides are:

Glucose + fructose = sucrose

Galactose + glucose = lactose

glucose + glucose = maltose

What are monosaccharides examples?

The simplest carbohydrates, also called simple sugars, are plentiful in fruits. A monosaccharide is a carbohydrate consisting of one sugar unit.

What are the 4 monosaccharides?

Glucose is the most abundant monosaccharide. Galactose, mannose, fructose, and ribose are also of major biological importance.

What are the 3 disaccharides?

Disaccharides consist of two monosaccharide units, linked together with glycosidic bonds in the α or β orientation. The most important of them are sucrose, lactose, and maltose.

What are disaccharides and their functions?

Disaccharides act as an energy source for the body, just like any other carbohydrate. When we eat foods that contain disaccharides, our bodies break them down into simple sugars (monosaccharides) for absorption in the small intestine.

To know more about monosaccharides and disaccharides:

brainly.com/question/731310

#SPJ4

8 0
1 year ago
What volume of 17.8 M stock sulfuric acid solution would be needed to make 2.0L of 0.200 M diluted sulfuric acid solution?
vodomira [7]

Answer:

Required Volume is 22.47ml

Explanation:

To make 2.0L of 0.2M sulfuric acid required moles = 0.2 x 2 = 0.4 moles

To get 0.4 from 17.8M required quantity = 1000/17.8 x 0.4 = 22.47ml

7 0
3 years ago
What is the pH of the 1.0 M KOH solution?
Vadim26 [7]
So pH of the 1.0 * 10-2 mol-1 KOH is 12.
4 0
3 years ago
Read 2 more answers
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