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Lady bird [3.3K]
3 years ago
8

Lanthanum periodic table

Chemistry
1 answer:
Alborosie3 years ago
5 0
The answer would be LA
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If a gas at 20.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a
slamgirl [31]

Answer:

1.44L

Explanation:

P1V1/T1=P2V2/T2

since the temperature didn’t change, stay at 20celsius, we can ignore T1 and T2.T1=T2

(1.00atm)(3.60L)=(2.50 atm)V2

V2=(1.00atm)(3.60L)/(2.50atm)

=1.44L

7 0
3 years ago
A chemist needs to neutralize 25.5 L of 3.86 M chloric acid (HClO3). What mass of sodium hydroxide is
Karolina [17]

Answer:

3.94 × 10³ g

Explanation:

Step 1: Write the neutralization reaction

HClO₃ + NaOH = NaClO₃ + H₂O

Step 2: Calculate the moles of chloric acid that react

25.5 L of 3.86 M chloric acid is to be neutralized. The reacting moles are:

25.5L \times \frac{3.86mol}{L} =98.4mol

Step 3: Calculate the required moles of sodium hydroxide

The molar ratio of HClO₃ to NaOH is 1:1. Then, the reacting moles of NaOH are 98.4 moles.

Step 4: Calculate the mass of sodium hydroxide corresponding to 98.4 moles

The molar mass of NaOH is 40.00 g/mol.

98.4mol \times \frac{40.00g}{mol} =3.94 \times 10^{3} g

6 0
3 years ago
650.0 mL of a gas is under a pressure of 840.0 torr. What would the volume of
zheka24 [161]

Answer:

Explanation:using the ideal gas formula, calculate the volume of 1.5omoles of a gas at 115kPA and a temperature of 298k?

6 0
2 years ago
How can you best classify this molecule<br><br>A) Carboxylic<br>B) Alcohol<br>C) Ester<br>D) Amine​
gavmur [86]

Answer:

B) Alcohol

Explanation:

It is methanol. Alcohol has group 'OH'

4 0
3 years ago
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