3 years ago

Chlorine dioxide is used as a disinfectant and bleaching agent. In water, it reacts to form chloric acid (HClO3),

Chemistry

1 answer:

Sliva [168]3 years ago

5 0

All done no worries

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The heat of solution is found by adding a salt to water in a calorimeter and measuring the temperature change. The specific heat

melomori [17]

Answer:

The heat of the solution of salt is 1.66.11 J/g.

Explanation:

Mass of the water = m = 46.52 g

Initial temperature of the water = $T_1=22.83 ^oC$

Final temperature of the water = $T_2=18.98^oC$

The specific heat of water, c = 4.180 J/gºC

Heat associated with water on dissolving salt: q

$Q=mc(T_2-T_1)$

$Q=46.52 g\times 4.180 J/g&oC\times (18.98^oC-22.83 ^oC)$

$Q=-748.65 J$

Negative sign means that heat was lost by water on an addition of a salt.

Heat released on dissolving of salt = -Q = 748.65 J

Mass of salt added = 4.5069 g

Heat of the solution of salt :

= $\frac{-Q}{ 4.5069 g}=\frac{748.65 J}{ 4.5069 g}=1.66.11 J/g$

The heat of the solution of salt is 1.66.11 J/g.

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4 years ago

True or False: Molar ratios come from the molar coefficients of balanced chemical reactions

jeka94

Answer:

1. true

2.true

3.fasle

Explanation:

sorry if im wrong.

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7 0

3 years ago

How many moles of nitrogen N are in 71.0g of nitrous oxide , N2O

timama [110]

1.6 moles of N2 in 71g

8 0

3 years ago

Read 2 more answers

What is the total number of neutrons in an atom of O-18?<br> (1) 18 (3) 10<br> (2) 16 (4) 8

Julli [10]

The oxygen has 8 protons and 8 neutrons <span>in your nucleus

A = z + n

n = 18 - 8

n = 10 neutrons

Answer (3)

hope this helps!</span>

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4 years ago

Within each ______ in the periodic table, elements have similar properties because they have the same number of valence electron

borishaifa [10]

Answer:

group

Explanation:

elements in the same group have the same number of valence electrons

6 0

4 years ago