1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nikdorinn [45]
3 years ago
11

A geochemist in the field takes a 36.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.

He notes the temperature of the pool, 170 C, and caps the sample carefully. Back in the lab, the geochemist filters the sample and then evaporates all the water under vacuum. Crystals of are left behind. The researcher washes, dries and weighs the crystals. They weigh 3.96 g. Using only the information above, can you calculate the solubility of X in water at 17.0C? If you said yes, calculate it.
Chemistry
1 answer:
Shkiper50 [21]3 years ago
3 0

Answer:

Yes, 0.11g/mL is the solubility of X in water at 17.0°C.

Explanation:

As the sample of water has crystals around it, the solution is oversaturated at 17.0°C. The water contains the maximum amount of X at 17.0°C, this concentration is called <em>solubility</em>. Thus, yes, we can calculate solubility in water at 17.0°C

The concentration of the crystals is 3.96g in 36.0mL, that is:

3.96g / 36.0mL =

<h3>0.11g/mL is the solubility of X in water at 17.0°C</h3>
You might be interested in
In a very violent reaction called a thermite reaction, aluminum metal reacts with iron (III) oxide to form iron metal and alumin
leva [86]
Here's the equation:
<span>Fe2 O3 + 2Al → 2Fe + Al2 O3 
</span>
Here's the question.
What mass of Al will react with 150g of Fe2 O3? 

<span>In every 2 moles Al you need 1 mole Fe2O3 </span>

<span>moles = mass / molar mass </span>
<span>moles Fe2O3 = 150 g / 159.69 g/mol </span>
<span>= 0.9393 moles </span>

<span>moles Al needed = 2 x moles Fe2O3 </span>
<span>= 2 x 0.9393 mol </span>
<span>= 1.879 moles Al needed </span>

<span>mass = molar mass x moles </span>
<span>mass Al = 26.98 g/mol x 1.879 mol </span>
<span>= 50.69 g </span>
<span>= 51 g (2 sig figs) 
</span>
So the <span>mass of Al that will react with 150g of Fe2 O3 is 51 grams.</span>
3 0
3 years ago
It's actually Science but I didn't find it.
fomenos

Answer:

Forces acting on an object may be balanced or unbalanced. When the forces  acting on an object have <u>equal</u> strength and act in opposite directions, they  are <u>balanced</u>. These forces cancel out one another, and the <u>motion</u> of the  object does not <u>change</u>.  When the forces acting on an object are <u>unbalanced</u>, they do not cancel out  one another. An unbalanced force acting on an object results in the object’s  motion <u>changing</u>. The object may change its <u>speed</u> (speed up or slow down), or it may change its <u>direction</u>.  <u>Friction</u> is a force that resists the motion or the tendency toward motion  between two objects in contact with each other.  <u>Gravity</u> is a force that pulls objects toward one another. For example, Earth  pulls all objects toward it.

Explanation:

3 0
3 years ago
3. Calculate the percent yield of silver chromate if 0.455 grams of silver chromate are produced
andrezito [222]

The answer is in the photo.

8 0
3 years ago
How many particles are in 1.40 x 10^7 mol of aluminum (Al)?
SpyIntel [72]

Answer:

<h3>Hlo there !! </h3>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.</u>

<u>One mole of any substance contains 6.022*1023 structural units (atoms, molecules, ions, etc.). This number is known as the Avogadro constant.So 1.04*107 mol of Al contains 1.40*107 * 6.022*1023 = 8.43*1030 structural units (in case of Al – atoms).</u>

<h3><u>8.43*1030 particles Al.</u></h3>

Explanation:

<h3>Hope this helps !!</h3>
5 0
2 years ago
Which scientist was the first to use the telescope in astronomy? Copernicus Newton Kepler Galileo
coldgirl [10]

The scientist that was the first to use the telescope in astronomy was Newton

8 0
3 years ago
Other questions:
  • For this heterogeneous system 2 A ( aq ) + 3 B ( g ) + C ( l ) − ⇀ ↽ − 2 D ( s ) + 3 E ( g ) 2A(aq)+3B(g)+C(l)↽−−⇀2D(s)+3E(g) th
    15·1 answer
  • Tell why small droplets of water on an oily surface are almost spherical.
    14·1 answer
  • What is the concentration of H+ in 0.0025 M HClO4? What is the pH of the solution? What is the OH− concentration in the solution
    14·1 answer
  • A gas has a pressure of 25 atm at 303 K . What is the temperature if the pressure drops to 20 atm?
    15·1 answer
  • Al2(SO4)3+Mg(NO3)2⟶ What would be the product(s) of this reaction? *These are NOT balanced, just look for the correct products*
    14·1 answer
  • How can volcanic ash change Earths surface ?
    8·1 answer
  • The question in the picture, I really a correct answer, no cheap answers​
    8·1 answer
  • Which of the following protects the contents of the nucleus
    10·1 answer
  • How can the Swartz process be modified to work for bacteria? Explain.​
    14·1 answer
  • A solution with a volume of 4.0 L that contains 2.0 mol of KNOg has a molarity of
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!