2 years ago

How would one make a 2 M solution of a compound?

Chemistry

2 answers:

Sati [7]2 years ago

5 0

Answer:

B. By dissolving 2 moles of the compound in 1 L of water.

DiKsa [7]2 years ago

5 0

Answer:

Explanation:

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How many moles of argon would you have if you have 25 L of argon?

Anarel [89]

Answer: 39.948 grams

Explanation:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Argon, or 39.948 grams

4 0

2 years ago

The molecular weight of a gas that has a density of 5.75 g/l at stp is __________ g/mol.

Ira Lisetskai [31]

Answer : The molecular weight of a gas is, 128.9 g/mole

Explanation : Given,

Density of a gas = 5.75 g/L

First we have to calculate the moles of gas.

At STP,

As, 22.4 liter volume of gas present in 1 mole of gas

So, 1 liter volume of gas present in $\frac{1}{22.4}=0.0446$ mole of gas

Now we have to calculate the molecular weight of a gas.

Formula used :

$\text{Moles of gas}=\frac{\text{Mass of a gas}}{\text{Molecular weight of a gas}}$

Now put all the given values in this formula, we get the molecular weight of a gas.

$0.0446mole=\frac{5.75g}{\text{Molecular weight of a gas}}$

$\text{Molecular weight of a gas}=128.9g/mole$

Therefore, the molecular weight of a gas is, 128.9 g/mole

8 0

2 years ago

Read 2 more answers

Given that the density of iron is 7.9 g/cm3, what would be the volume of a 15.8 g piece of iron

Anuta_ua [19.1K]

Answer:

2cm^3

Explanation:

Use the density triangle: D=MxV

Switch for variables, V=M/D

Plug in numbers, 15.8g/7.9g/cm^3=2cm^3

7 0

3 years ago

Name three of the most sensitive parts of your body (Appropriate parts. Ex: finger, wrist, shoulder, etc.)

yKpoI14uk [10]

Inner thigh, eyes, brain

3 0

3 years ago

PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!

Marina CMI [18]

Answer:

Explanation:

It afffects changes in pressure and temperature not melting and boiling points

5 0

2 years ago