<h3>
Answer:</h3>
Concentration will be 0.1 M and not 0.050M
<h3>
Explanation:</h3>
This explains why the molarity is not 0.050 M but 0.1 M
Molarity is the concentration of a solution in moles per liter.
Therefore,
Molarity = moles ÷ Volume
In this case,
We have 1.34 g of CuCl₂ and a volume of 100 mL
To get the molarity we need to find the number of moles in 1.34 CuCl₂
Number of moles = Mass÷ molar mass
Molar mass of CuCl₂ = 134.45 g/mol
Therefore,
Moles of CuCl₂ = 1.34 g ÷ 134.45 g/mol
= 0.009965 moles
= 0.01 moles
Then we can calculate the molarity;
Molarity = Number of moles ÷ Volume
Volume of the solution is 100 mL or 0.1 L
Molarity = 0.01 moles ÷ 0.1 L
= 0.1 M
Therefore, the concentration of 1.34 g CuCl₂ in a volume of 100 mL is 0.1 M and not 0.050M.
Answer:
The soil
Explanation:
The soil will cool faster because it has a lower
specific heat.
hope this helps :)
Answer:
The object placed in the water has a volume of 19 cm³
Explanation:
<u>Step 1: </u>Data given
volume of the cylinder before adding the object = 28 mL = 28 cm³
After adding an object with volume X the volume rises to 47 mL = 47 cm³
<u>Step 2:</u> Calculate the volume of the object
Volume of the object = Final volume - initial volume
Volume of the object = 47 cm³ (or 47 mL) - 28 cm³ ( or 28 mL) = 19 cm³ (or 19 mL)
The object placed in the water has a volume of 19 cm³
Answer:
From 4.0 moles of hydrogen 2.67 moles of ammonia are produced.
Explanation:
Given data:
Number of moles of hydrogen react = 4.0 mol
Number of moles of ammonia produced = ?
Solution:
Chemical equation:
N₂ + 3H₂ → 2NH₃
Now we will compare the moles of hydrogen and ammonia from balance chemical equation.
H₂ : NH₃
3 : 2
4 : 2/3×4 = 2.67 mol
From 4.0 moles of hydrogen 2.67 moles of ammonia are produced.
The density of the liquid is 0.884 g/mL.
<em>Density = mass/volume</em> = 22.1 g/25.0 mL = 0.884 g/mL
