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elena-14-01-66 [18.8K]
2 years ago
8

Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass,

Chemistry
2 answers:
Delicious77 [7]2 years ago
8 0
  • The units used for mass were kilogram (kg)
  • The units used for volume were cubic metres (m³)
  • The units used for density were kilogram per cubic metres (kg/m3).

When carrying out a research or experiment in a laboratory, your data should be recorded using standard units.

These units are called S.I. units or International system of units. They are the globally-agreed system of measurement units.

The properties of an object with its SI unit include:

  • Mass: This is the quantity of matter that is found in an object which is always constant. The SI unit of mass is Kilogram (kg).
  • Volume: This measures the space occupied by an object. The SI unit of volume is cubic metres (m³).
  • Density: This is mass of a unit volume of an object. The SI unit of density is kilogram per cubic metres (kg/m3).

Learn more here:

brainly.com/question/17686239

SVEN [57.7K]2 years ago
6 0

Answer:

1)grams 2) cubic centimeters 3) grams/cubic centimeters

Explanation:

I just put it in <3

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two kilogram of nasialo4 zeolites are used in a water filter to remove calcium. after complete ion exchange the zeolite is remov
defon

After ion exchange with zeolite in water filter to remove calcium by substitute natrium ion with calcium ion, the weight of zeolite become 1.9578 kg.

ion exchange calculation can be done by using basic stoichiometry if we know how the reaction of the ion exchange. In this case where zeolite with natrium ion will be exchanged with calcium. The reaction of exchange will be like this:

2NaSiAlO_{4} + Ca^{2+} ⇒ Ca(SiAlO_{4}) _{2} + 2Na^{+}

Calculate the molecule weight of both zeolite
Atomic weight data:
Na = 23 gram/mole

Si = 28 gram/mole

Al = 27 gram/mole

O = 16 gram/mole

Ca = 40 gram/mole

Molecule weight

NaSiAlO_{4} = 142 gram/mole

Ca(SiAlO_{4}) _{2} = 278 gram/mole

Calculate mole from 2kg of zeolite with natrium :

2000 gram/ 142 = 14.0845 mole

Based on the stoichiometry, we got the mole of zeolite with calcium:

14.0845 mole x 1/2 = 7.0423 mole

Weight of zeolite after the ion exchanged with calcium:

7.0423 mole x 278 = 1957.8 gram = 1.9578 kg

Learn more about ion exchange here: brainly.com/question/28203551

#SPJ4

6 0
1 year ago
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