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kipiarov [429]
4 years ago
10

How do you determine the correct subscripts in a chemical formula

Chemistry
1 answer:
VMariaS [17]4 years ago
4 0

BY CHECKING THE REACTIVITY OF AN ELEMENT WHICH IS MOST REACTIVE OR NOT AND YOU STUDY TYPE OF CHEMICAL REACTION IN 1 CH AND YOU CHECK THE REACTIVITY OF ELEMENTS IN 3 CH METALS AND NON METALS PAGE NO 45 IN NCERT BOOK

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Sodium phosphate dissolves as follows: na3po4(s) → 3na (aq) po4-(aq). How many moles of na3po4 are required to make 1. 0 l of so
bezimeni [28]

The 0.05 moles of Na_{3}PO_{4} required to make 1 L of solution in which the Na concentration is 0. 15 M.

Calculation,

The Sodium phosphate dissolves as follows:

Na_{3}PO_{4}(s) → 3Na^{+} (aq)+PO_{4}^{-} (aq)

To make 1. L of solution in which the  Na^{+concentration is 0. 15 M

The morality  of Na^{+= 0.15 M = number of moles / volume in lit

The morality of Na^{+= 0.15 M = number of moles /1 Lit

number of moles of Na^{+ = 0.15 mole

The mole ratio is 1: 3

It means, the 1 mole of Na_{3}PO_{4}(s) required to form 3 mole of Na^{+

So, to form 0.15 mole of Na^{+  = 1×0.15 / 3 moles of Na_{3}PO_{4}(s)required.

Hence, number of moles of Na_{3}PO_{4}(s) required = 0.05 moles.

learn about moles

brainly.com/question/26416088

#SPJ4

6 0
2 years ago
Even if you used the right specific heat (c) and temperature change (∆T) for ice, for liquid, and for steam, it does not give yo
vodka [1.7K]

Answer: Heat of melting s = 333 kJ/kg and heat of vaporisation r= 2160 kJ/kg

Explanation:

4 0
3 years ago
Please help i'll give brainliest!!!!!
oksian1 [2.3K]

Answer:

15.8 m/s

Explanation:

v= u+at

v= 32+(-1.5×10.8)

v=32-16.2

v=15.8m/s

8 0
3 years ago
Water has a higher boiling point than expected because what?
finlep [7]

Answer:

Water has strong hydrogen bonds between molecules. These bonds require a lot of energy before they will break. This leads to water having a higher boiling point than if there were only weaker dipole-dipole forces. Water also has a high specific heat.

Explanation:

Hope this helped it is what I could find!

8 0
3 years ago
Read 2 more answers
Name for this compound Ag2O
Andrew [12]

it is silver oxide my friend mark as brainlest t

tthanxxxxx

silver oxide

Silver oxide is the chemical compound with the formula Ag₂O. It is a fine black or dark brown powder that is used to prepare other silver compounds

4 0
3 years ago
Read 2 more answers
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