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Zinaida [17]
4 years ago
9

Which is true about the dissolving process in water?

Chemistry
1 answer:
xxTIMURxx [149]4 years ago
7 0

Answer:

The correct answer is option C.Water molecules move throughout the solute

Explanation:

The basic standard for solute disintegration in a specific dissolvable is "like breaks up like". On account of water, a solute will disintegrate if it is polar. This is on the grounds that water is a polar dis-solvable. A polar substance is one which has particles that have a net charge on them. This net charge produces powers of fascination.

At the point when a polar solute is added to water, the water atoms are pulled in to the solute particles and they join to them. In the wake of appending to the water atoms, the solute particles are scattered all through the water. Accordingly, the appropriate response is particles or particles of a solute spread all through the water atoms.

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How many grams of oxygen gas are contained in a 15 L sample at 1.02 atm and 28°C? Please show your work.
vampirchik [111]

Answer:

0.019 g.

Explanation:

  • Firstly, we need to find the no. of moles of oxygen gas:
  • We can use the general law of ideal gas: <em>PV = nRT. </em>

where, P is the pressure of the gas in atm (P = 1.02 atm).

V is the volume of the gas in L (V = 15.0 L).

n is the no. of moles of the gas in mol (n = ??? mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (T = 28°C + 273 = 301.0 K).

∴ n = PV/RT = (1.02 atm)(15.0 L)/(0.0821 L.atm/mol.K)(301.0 K) = 0.62 mol.

  • To find the mass of oxygen gas, we have:

<em>no. of moles = mass/molar mass.</em>

<em></em>

∴ mass of oxygen = (no. of moles)(molar mass) = (0.62 mol)(32.0 g/mol) = 0.019 g.

4 0
4 years ago
If 5.00lb of potatoes cost $3.60,how much would 1.30kg of potatoes cost?
Nana76 [90]

Answer:

the correct answer is $2.06

Explanation:

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6 0
2 years ago
Can someone help me with this question please​
strojnjashka [21]

Answer:

Are u a boy or a girl so we can form a study group and the answer is C

6 0
3 years ago
When u heat a pot of water over a flame what form of energy is added to water
USPshnik [31]
Thermal energy is added to the water
5 0
3 years ago
If body fat has a density of .94g/mL and 4.0L of fat is removed, how many pounds of fat were removed?
Vlad1618 [11]

Answer:

8.3lb of fat were removed

Explanation:

To solve this problem we need to convert the liters of fat removed to mL. Using the mL and density we can find the grams. To convert grams to pounds we must use (1lb = 453.592g):

<em>mL fat:</em>

4.0L * (1000mL / 1L) = 4000mL

<em>g fat:</em>

4000mL * (0.94g / mL) = 3760g of fat

<em>lb fat:</em>

3760g of fat * (1lb / 453.592g) =

<h3>8.3lb of fat were removed</h3>
7 0
3 years ago
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