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GenaCL600 [577]
3 years ago
5

How many grams of calcium nitrate are needed to make 3.30 L of a 0.10 M solution?

Chemistry
1 answer:
ki77a [65]3 years ago
6 0
54.15 g
First you start out with the equation n=cv (n= moles, c=molarity, v= volume)
You’re going to multiply 0.10M by 3.30L to get an answer of 0.33 moles of Ca(NO3)2
From there you’re gonna convert the moles to grams to get your answer, first you have to find the molar mass of Ca(NO3)2
This can be done by finding adding the molar mass of each individual substance
The answer you should get for the molar mass is 164.1 g
From there just multiply the number of moles you calculated (0.33 mol) by the molar mass (164.1 g) and your answer is going to be 54.15 g Ca(NO3)2
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Solnce55 [7]

The answer is it shifts right. This could be explained by Le Chatelier's principle. It states that that when a system experiences a commotion (such as absorption, temperature, or heaviness variations), it will answer to reinstate a new equilibrium state. This just means that if there is an energy added, the reaction is trying to remove it again by going to the right.

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What is the total number of moles of solute in 2230 ml of 3.0 M NaOH solution.
kolbaska11 [484]

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M *=* ml / M

Explanation:

2230 / 3.0 = 743.3

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How many Mol are in 4.000 grams of MgCl2 ?
grigory [225]

Answer:

The number of mol is: 0, 042 mol in 4 grams of MgCl2

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4 0
3 years ago
Please help!!!!its due tomorrow !!!
scZoUnD [109]

#6).
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How many 1,000mL are there in  2,800 mL ?
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#7).
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You have to know that both sides of a rectangle are the same length,
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   (2 yd) + (4.5 yd) + (2.yd) + (4.5 yd) = 13 yd .

Oops.  The problem wants to know the perimeter in feet.
So you have to know that each yard is the same as 3 feet.
In order to find the number of feet in 13 yards, you have to
take 3 feet 13 <em><u>times</u></em> .

       (3 feet) times (13)  =  <em>39 feet .</em>

#8).
For this one, you have to know that every 36 inches makes 1 yard.

How many 36 inches are there in 48 inches ?
That's division.
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#9).
For this problem, you have to know how to handle a mixed number,
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Add up the fruit:

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___________________________________

#10).
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Add up the distances that Omar ran:

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That's division.

   (4,125 meters) / (1,000 meters)  =  <em>4.125 kilometers</em>


4 0
3 years ago
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