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stellarik [79]
3 years ago
6

How do you get the answer

Chemistry
2 answers:
Bad White [126]3 years ago
8 0
Cancle out and make sure both sides have same thing
drek231 [11]3 years ago
5 0
To find out how much of each element you need, you have to balance the equation — make sure that the number of atoms on the left side of the equation equals the number of atoms on the right. You know the reactants and the product for this reaction, and you can't change them.
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45.6 mL of 0.0600 M Ba(OH)2 is added to 25.0 mL of HCl of unknown concentration. What is the concentration of HCl?
Alex Ar [27]

45.6 mL of 0.0600 M of Ba(OH)_{2} is added to 25.0 mL of HCl of unknown concentration then , the  concentration of HCl is 0.032 M .

Calculation ,

Formula used : M_{1} V_{1} =  M_{2} V_{2}                 ...( 1 )

Where  M_{1}= concentration of Ba(OH)_{2}  =  0.0600 M ( given )

M_{2} = concentration of HCl = ? ( to be find )

 V_{1}= volume of Ba(OH)_{2}  = 25.0 mL  ( given )

V_{2} = volume of HCl = 45.6 mL  ( given )

Now , put the value of all volume and concentration in equation ( 1 ) we get .

0.0600 M ×  25.0 mL =  M_{2}  × 45.6 mL

M_{2}  =  0.0600 M ×  25.0 mL / 45.6 mL = 0.032 M

Therefore , concentration of  unknown concentration of HCl is 0.032 M .

to learn about concentration here ,

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7 0
1 year ago
To use combustion analysis data to determine an empirical formula A molecular formula expresses the number of each kind of atom
Kitty [74]

Answer:

0,1 mol of carbon and 0.2 moles of hydrogen were in the original sample.

Explanation:

The combustion reaction of the compound is

C_{x} H_{y} O_{z} +O_{2} -> CO_{2} + H_{2}O

And the molar mass of CO2 and H2O are 44g/mol and 18g/mol respectively

All the mass of carbon producing the CO2 must come from the carbon of the unknown compound, thus it is necessary to calculate the moles of carbon in 4.4g of CO2

\frac{4.4gx12g}{44gx12g/mol} = 0.1 mol of Carbon

Also, all the mass of hydrogen producing the H2O must come from the hydrogen of the unknown compound, hence it is necessary to calculate the moles of hydrogen in 1.8g of water

\frac{1.8gx2g}{18gx1g/mol} = 0.2 mol of Hydrogen

5 0
3 years ago
Which acid is weaker? 1. they have the same strength. 2. hbro2 3. hclo2?
iVinArrow [24]
HBrO2 is weaker than HClO2.
6 0
3 years ago
Which of these statements is false?
AVprozaik [17]

Answer:

The answer is b

Explanation:

Hope it helps

8 0
3 years ago
Read 2 more answers
n‑methyl‑2‑pyrrolidone is an aprotic solvent used in many industrial processes. draw the structure of the product formed when it
kotegsom [21]

The structure of n‑methyl‑2‑pyrrolidone when it is heated with aqueous acid. product is given below

<h3 /><h3>What is  aprotic solvent?</h3>

A polar solvent without an acidic proton is known as a polar aprotic solvent. These solvents don't include hydroxyl or amine groups. These solvents can act as proton acceptors, but unlike protic solvents, they do not act as proton donors in hydrogen bonding.

After being exposed to a strong aqueous acidic media and being heated, N-methyl-2-pyrrolidone opens up, forming a molecule with a carboxylic group at one end and a protonated nitrogen atom with a methyl group connected to it at the other.

Alcohol, water, hydrogen fluoride, formic acid, acetic acid, ammonia, methanol, ethanol, and other well-known substances are a few examples of polar protic solvents. Polar aprotic solvents, on the other hand, lack acidic protons and do not function as donors during hydrogen bonding.

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7 0
2 years ago
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