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Dafna11 [192]
3 years ago
13

a sample of neon occupied a volume of 15.0L at a temp 30.0(C. if the temp were to increase by 15(C, what would be the volume of

the neon under this new condition ?
Chemistry
2 answers:
jeyben [28]3 years ago
4 0

Answer:

22.5L will be the new volume for the gas

Explanation:

Pressure and number of moles remains constant.

When the temperature for a sample of gas is increased, the volume will also be increased, acording to this relation:

V₁ / T₁ = V₂ / T₂

15L / 30°C  =  V₂ / 45°C

(15L / 30°C ). 45°C = 22.5L

We assume Ar, as an Ideal Gas

OLEGan [10]3 years ago
4 0

Answer:

When the temperature increases with 15 °C the new volume will be 15.7 L

Explanation:

Step 1: Data given

Initial volume of the neon = 15.0 L

Initial temperature of the neon = 30.0 °C = 303 K

The temperature is increased by 15°C = 318 K

Step 2: Calculate the new volume

V1/T1 = V2/T2

⇒with V1 = the initial volume of neon = 15.0 L

⇒with T1 = the initial temperature = 303 K

⇒with V2 = the final volume = TO BE DETERMINED

⇒with T2 = the increased temperature = 318 K

15.0 L / 303 K = V2 / 318 K

V2 = (15.0 L/ 303 K) * 318 K

V2 = 15.7 L

When the temperature increases with 15 °C the new volume will be 15.7 L

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Hydrazine (N 2 H 4 )) a rocket fuel reacts with oxygen to form nitrogen gas and water vapor . The reaction is represented with t
Drupady [299]

The mass of hydrazine (N₂H₄) required to produce 96 g of water (H₂O) is 85.4 g (Option C)

<h3>Balanced equation </h3>

N₂H₄ + O₂ —> N₂ + 2H₂O

Molar mass of N₂H₄ = (2×14) + (4×1) = 32 g/mol

Mass of N₂H₄ from the balanced equation = 1 × 32 = 32 g

Molar mass of H₂O = (2×1) + 16 = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

<h3>How to determine the mass of N₂H₄</h3>

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

Therefore,

96 g of H₂O will be produced by = (96 × 32) / 36 = 85.4 g of N₂H₄

Thus, 85.4 g of N₂H₄ is needed for the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

8 0
2 years ago
How many millimeters (mm) is the length of a standard table if it is
matrenka [14]

Answer:

1,500 mm

Explanation:

if 1 meter = 1000 mm, 0.5 meters is 500 mm, so 1.50 meters is 1,500 mm

5 0
3 years ago
You have 100 mL of a 12M solution of HCl, and you need to dilute it to 1.5M for an experiment. How many liters will your new sol
sashaice [31]

Answer:

800.0 mL.

Explanation:

  • To solve this problem; we must mention the rule states the no. of millimoles of a substance before and after dilution is the same.

<em>(MV)before dilution of HCl = (MV)after dilution of HCl</em>

M before dilution = 12.0 M, V before dilution = 100.0 mL.

M after dilution = 1.5 M, V after dilution = ??? mL.

∵ (MV)before dilution of HCl = (MV)after dilution of HCl

∴ (12.0 M)(100.0 mL) = (1.5 M)(V after dilution of HCl)

<em>∴ V after dilution of HCl = (12.0 M)(100.0 mL)/(1`.5 M) = 800.0 mL.</em>

8 0
3 years ago
How would you prepare 100.0 ml of.400 m CaCl2 from a stock solution of 2.00 M CaCl2?
docker41 [41]
C₀=2 mol/l
c₁=0.400 mol/l
v₁=100.0 ml = 0.1 l

c₁v₁=c₀v₀

v₀=c₁v₁/c₀
v(H₂O)=v₁-v₀

v₀=0.1*0.400/2=0.02 l = 20 ml
v(H₂O)=100 - 20 = 80 ml

It is necessary to mix 20 ml of the feed solution and 80 ml of water.

4 0
3 years ago
Read 2 more answers
How do the hydrosphere and atmosphere interact? give an example
vladimir1956 [14]

Answer:

Evaporation

Explanation:

Water in the ocean, rivers, lakes, etc. is part of the hydrosphere, and when that water evaporates it enters the atmosphere

3 0
3 years ago
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