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lesantik [10]
3 years ago
9

(d) Calculate the relative molecular mass of ammonium sulphate (NH4)2SO4.5H2O

Chemistry
1 answer:
elixir [45]3 years ago
7 0

Answer:

222.1

Explanation:

(14+4*1)*2+32.1+16*4+(2*1+16)*5=222.1

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There is a bell at the top of a tower that is 45m high. The bell weighs 190N (N=Newtons). The bell has potential energy. The for
fiasKO [112]

Since the bell weighs 190 N and is 45 m high, the bell’s potential energy is 8550 J

To answer the question, we need to know what potential energy is.

<h3>What is potential energy?</h3>

This is energy due to position. It is given by PE = mgh where

  • m = mass,
  • g = acceleration due to gravity and
  • h = height of object.

Also, W = mg = weight of object.

So, PE = Wh

<h3>The bell's potential energy</h3>

Now, given that the bells weight 190 N and is 45 m high,

  • W = 190 N and
  • h = 45 m.

So, PE = Wh

= 190 N × 45 m

= 8550 Nm

= 8550 J

So, the bell’s potential energy is 8550 J

Learn more about potential energy here:

brainly.com/question/24933254

5 0
2 years ago
A pool owner adds a compound containing chlorine to the pool to disinfect it. However, too much of the compound is added. As a r
MrMuchimi

Answer: He could add a base to the pool to neutralize the acid.

Explanation:

Chlorine is used to disinfect the pools as it produces hypochlorous acid in water. This hypochlorous acid is unstable and gives hydrochloric acid and nascent oxygen which is used to disinfect.

Cl_2+H_2O\rightarrow HOCl

HOCl\rightarrow HCl+O

The excess acid is neutralized by adding base which produces salt and water and thus decrease the acidity.

Acid+Base\rightarrow Salt+water

Adding more acid would increase the acidity further.

3 0
3 years ago
Read 2 more answers
1. (a) What are the possible interactions<br> between two charged objects?
lord [1]

Answer:

the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object.

Explanation:

3 0
4 years ago
¿Cuál era su juego favorito cuando eran niños?​
blagie [28]

Answer:

mi juego favorito probablemente sería Mine craft cuando era más joven, aunque sigue siendo uno de mis juegos favoritos

Explanation:

7 0
3 years ago
Which compound will precipitate when solutions of iron(II) acetate, Fe(C2H3O2)2, and potassium iodide (KI) are mixed?
oksano4ka [1.4K]
FeI2 (B). Group 1 elements (K) dissociate completely, so KCH3CO2 will become K+ and CH3CO2- . Fe2+ and I- don't dissociate in water, so you get FeI2(s) precipitate.
8 0
3 years ago
Read 2 more answers
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