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3 years ago

Which solubility curve on the right best represents the data table on the left?

Chemistry

2 answers:

Ksenya-84 [330]3 years ago

6 0

Answer:

blue curve

Explanation:

edge 2021

Korvikt [17]3 years ago

6 0

Answer:

blue curve on edge :)

Explanation:

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Differences between evaporation and vaporization

laiz [17]

I BELIEVE THAT VAPORIZATION THAT <span>element or compound is a phase transition from the liquid phase to vapor.

AND

EVAPORATION </span>a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.

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3 years ago

Students at Gonzaga University were attempting to make barium phosphate by precipitation when mixing solutions of barium chlorid

Solnce55 [7]

Answer:

Explanation:

3BaCl₂(aq) + 2Na₃PO₄(aq) = Ba₃(PO₄)₂ + 6NaCl(aq)

3 x 208 g = 624 g 2 x 164 g = 328 g

328 g of Na₃PO₄ reacts with 624 g of BaCl₂

.611 g of Na₃PO₄ reacts with 624 x .611/328 g of BaCl₂

624 x .611/328 g = 1.16 g of BaCl₂

BaCl₂ available is .504 g which is less than required .

Hence BaCl₂ is limiting reagent .

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3 years ago

Calculate the concentration of OH in a solution that contains 3.9 10-4 M H30 at 25°C. Identify the solution as acidic, basic or

Norma-Jean [14]

Answer:

Option A) 2.6 × 10⁻¹¹ M, acidic.

Explanation:

The ion-product constant of water $K_{\rm w}$ gives a relationship between $\rm [H_3O^{+}]$ and $\rm [OH^{-}]$ :

$K_{\rm w} = \rm [H_3O^{+}]\cdot [OH^{-}]$ .

The exact value of $K_{\rm w}$ depends on the temperature. Under $\rm 25^{\circ}C$ , $K_{\rm w} \approx 1^{-14}$ .

The question states that $\rm [H_3O^{+}] = 3.9\times 10^{-4}\; M$ . As a result,

$\begin{aligned} {\rm [OH^{-}]} &= \frac{K_{\rm w}}{[{\rm H_3O^{+}}]}\\ &\approx\frac{1^{-14}}{3.9\times 10^{-4}} && \rm {\leftarrow Only~under~25^{\circ}C.}\atop{}\\&\approx \rm 2.6\times 10^{-11}\; M\end{aligned}$ .

A solution is acidic if $\rm [H_3O^{+}] > [OH^{-}]$ .
A solution is neutral if $\rm [H_3O^{+}] = [OH^{-}]$ .
A solution is acidic if $\rm [H_3O^{+}] < [OH^{-}]$ .

$\rm [H_3O^{+}] > [OH^{-}]$ for this solution. As a result, this solution is acidic.

8 0

3 years ago

2. (10 Points) What is a calorimeter?

Luden [163]

Answer:

A calorimeter is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity. Differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters and accelerated rate calorimeters are among the most common types.

Explanation:

5 0

4 years ago

Read 2 more answers

A balloon filled with helium gas contains 8.89 moles of helium. How many atoms are present in the balloon? Show all of your work

NNADVOKAT [17]

There are 5.35 × 10²⁴ atoms in 8.89 moles of Helium.

<u>Explanation:</u>

Given that number of moles of Helium = 8.89 moles

Moles and Avogadro's number are related to each other by multiplying those two we can convert moles into atoms, molecules and Particles .

We have to convert the moles into atoms by multiplying the molar amount by Avogadro's number as,

Number of atoms = 8.89 × 6.022 × 10²³ atoms

= 5.35 × 10²⁴ atoms

So there are 5.35 × 10²⁴ atoms in 8.89 moles of Helium.

7 0

3 years ago