What is the boiling point of 1 cup of water with 6 tablespoons of salt?

a chemist dissolves 0.564 moles of manganese (IV) oxide (MnO2) in water, and adds enough water to make 0.510 L of solution. Calc

ladessa [460]

Answer:

The molarity of the solution is 1.1 $\frac{moles}{liter}$

Explanation:

Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$molarity=\frac{number of moles of solute}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$

In this case

number of moles of solute= 0.564 moles
volume= 0.510 L

Replacing:

$molarity=\frac{0.564 moles}{0.510 L}$

Solving:

molarity= 1.1 $\frac{moles}{liter}$

The molarity of the solution is 1.1 $\frac{moles}{liter}$

4 0

3 years ago

You wish to prepare 100 mL of 0.600 M HCl from concentrated HCl (12.85 M). You are provided with a 100 mL volumetric flask and a

Soloha48 [4]

Answer:

Because we need to dispense 4.7 mL, the volume reading in the pipet is the 5.3 mL line.

Explanation:

First we use C₁V₁=C₂V₂ in order to calculate the required volume of concentrated HCl (V₁):

12.85 M * V₁ = 0.600 M * 100 mL

V₁ = 4.7 mL

So we need to dispense 4.7 mL of the concentrated HCl solution. The mark in the pipet that would contain that volume would be 10.0 - 4.7 = 5.3 mL

8 0

3 years ago

Using the periodic table as a reference, which elements could bond to form a compound most like NaCl?

pychu [463]

step by step

Na(sodium)=2.8.1

Cl (Chlorine)=2.8.7. sodium will give the chlorine the 1 valence electron to become stable ions.

answer

pottasium. (2.8.8.1) and Flourine(2.7)

4 0

3 years ago

Calculate the pH of milk with a hydrogen ionconcentration of 4.25 x 10^-7 mol dm-3. Show all steps ofyour calculations and inclu

yulyashka [42]

Answer:

6.37.

Explanation:

What is given?

[H (+)] = 4.25 x 10⁻⁷ mol/dm³

Step-by-step solution:

First, let's see the formula to calculate the pH based on the hydrogen ion concentration (H (+)):

$pH=-log\lbrack H^+].$

*Logarithm must be in base 10!

Our given concentration of hydrogen ion is 4.25 x 10⁻⁷ mol/dm³. Remember that the units of concentration must be in M (mol/L) but in this case, 1 dm³ equals 1 L, so based on this, we have that:

$4.25\cdot10^{-7}\frac{mol}{dm^3}=4.25\cdot10^{-7}\frac{mol}{L}.$

So, we can replace this value in the formula of pH:

$pH=-log\lbrack4.25\cdot10^{-7}]\approx6.37.$

The pH of milk would be 6.37 which means that is slightly acid (weak acid).

5 0

1 year ago

What’s the correct answer ?

Tanya [424]

Answer:

Explanation:

i think c

3 0

3 years ago

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What is the boiling point of 1 cup of water with 6 tablespoons of salt?​

What is the boiling point of 1 cup of water with 6 tablespoons of salt?