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gizmo_the_mogwai [7]
3 years ago
14

The molar mass of SO3 is grams. in significant figures

Chemistry
2 answers:
Vikentia [17]3 years ago
6 0

Answer:

80.066 g/mol

Explanation:

I looked it up

Elanso [62]3 years ago
4 0

Answer:

80.06

Explanation:

The molar mass of SO3 is the sum of the molar masses of the elements S and O:

32.06 g/mol + (15.999 g/mol × 3) = 80.06 g/mol.

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Would the amount of solid magnesium increase decrease or stay the same if you added a strong acid to it?
Vlada [557]
Solid Magnesium is considered as active metal so it reacts with strong acids like HCl and H₂SO₄ liberating Hydrogen gas according to the following equations:

Mg(s) + 2 HCl(aq) → MgCl₂(aq) + H₂(g)
Mg(s) + H₂SO₄(aq) → MgSO₄(aq) + H₂(g)

so the amount of solid magnesium decrease  by addition of strong acid to it.
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Please help I’m marking a branliest answer ☹️☹️☹️☹️☹️☹️
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The answer would be C
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2 years ago
Post-Lab Questions
Svet_ta [14]

Answer:

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The wrong dye was added to the drink

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2. Changing the compound changes the absorbance behavior.

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Explanation:

When the beverage company adds dye to the drink, there should be standard quantity added to the drink so that the color of the drink remains constant. When too much dye is added to the drink, the color will get dark brown or black. When the color of drink get lighter than green this means dye is not added in required quantity.

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Which of these is an example of a physical change?
igomit [66]
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If a tank of gas contains 4 L of N O2 how many molecules are in it
Jobisdone [24]

but heres a way to solve it

An athlete takes a deep breath, inhaling 1.85 L of air at 21°C and 754 mm Hg.

T

How many moles of air are in the breath? How many molecules?

Gas constant, R= 8.314 J mol ¹ K-1

PV = nRT

PV

RT

h=

=

P

= 0.08206 L atm mol-1 K-1

= 62.36 L Torr mol-1 K-1 -

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754 Forr 1.85€

6236 Jerr 294K

3 0
2 years ago
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