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Arada [10]
3 years ago
14

The mass of 3.45 L of hydrogen gas at SATP

Chemistry
1 answer:
Licemer1 [7]3 years ago
5 0

Answer:

Explanation:

The easy way is knowing that all gases basically are 22.4 L/mol at SATP.

There fore   3.45 L/22.4 L/mol =0.154 mol

Or use PV=nRT

n=(1 atm)(3.45L)/(273 K)(0.82 L atm)/(mol K) =0.154 mol

same answer

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What is the temperature of a gas that is expanded from 3.75 L at 37 degrees Celsius to 5.6 L?
deff fn [24]

Answer:

190 °C  

Step-by-step explanation:

The pressure is constant, so this looks like a case where we can use <em>Charles’ Law</em>:  

V₁/T₁ = V₂/T₂      Invert both sides of the equation.  

T₁/V₁ = T₂/V₂      Multiply each side by V₂

T₂ = T₁ × V₂/V₁

=====

V₁ = 3.75 L; T₁ = (37 + 273.15) K = 310.15 K  

V₂ = 5.6 L;   T₂ = ?  

=====

T₂ = 310.15 × 5.6/3.75

T₂ = 310.15 × 1.49

T₂ = 463 K

t₂ = 463 – 273.15

t₂ = 190 °C

3 0
3 years ago
Element Name: Oxygen,
White raven [17]

Answer:

Element Name: Oxygen

Symbol: O

What is the Mass: 15.999 u

Protons: 8

Neutrons:10

Electrons: 8

Ion or Isotope: Oxide

8 0
3 years ago
In the single displacement reaction of HCl and magnesium, how many grams of magnesium chloride would be produced if 1.05g of mag
iren [92.7K]

Answer:

4.16g of MgCl2

Explanation:

First, let us generate a balanced equation for the reaction:

Mg + 2HCl —> MgCl2 + H2

Molar Mass of Mg = 24g/mol

Molar Mass of MgCl2 = 24 + (2x35.5) = 24 + 71 = 95g

From the equation,

24g of Mg produced 95g of MgCl2.

Therefore, 1.05g of Mg will produce = (1.05x95)/24 = 4.16g of MgCl2

5 0
4 years ago
I need some advice, I know like this is random, and I can not do this cuz issa place for questions about school work and stuff,
alina1380 [7]

Answer:

well try talking to him first and being his friend. introduce yourself and try not to be too awkward or shy. can't reltate lol. after that if he really likes you, he'll initiate stuffs ^^

Explanation:

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3 years ago
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A price support is a type of _____. price fixing price floor rent control price ceiling
Oksi-84 [34.3K]
Subsidy

A price support is a type of subsidy. It seems that this is not given in the choices. However, subsidy is a form of monetary or financial support which is provided by a local or state sector. It aims to provide economic and social stability and development. Hence, subsidy encompasses various types of support funded by either government or non-government offices. It can be given in form of either direct (money, incentives and etc.) or indirect (insurance, write-offs and etc.) in procedures.  



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3 years ago
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