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morpeh [17]
3 years ago
9

Good day pleases help

Chemistry
2 answers:
evablogger [386]3 years ago
7 0
The answer is b. Wolves work together
klemol [59]3 years ago
6 0
I can’t see the choices can you take another picture of this assignment please so i can help you
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What is the molarity of a solution containing 12.0 g of NaOH in 250.0 mL of solution?
riadik2000 [5.3K]

Answer:

1.196 M NaOH

Explanation:

Molarity = moles/Volume (L)

moles NaOH = mass NaOH/MM NaOH = 12/40.01 = 0.299 moles NaOH

Volume solution = 250 mL = 0.250L

M = 0.299/0.250=1.196 M NaOH

3 0
3 years ago
How many formula units are in 325 grams of iron (III) chloride?
OLEGan [10]

Answer:

1.204 × 10^24 formula units

Explanation:

Using the following formula to convert mass of iron (III) chloride to moles;

mole = mass/molar mass

Molar mass of FeCl3 = 56 + 35.5(3)

= 56 + 106.5

= 162.5g/mol

Mole = 325/162.5

mole = 2mol

Next, to calculate the formula units of FeCl3, we multiply the number of moles of FeCl3 by Avagadro number (6.02 × 10^23)

Formula units of FeCl3 = 2 × 6.02 × 10^23

12.04 × 10^23

= 1.204 × 10^24 formula units.

7 0
3 years ago
To calculate the density of a sample of matter,you must divide it_____ by its______.
Ymorist [56]
I think it is voulume and total mass
8 0
3 years ago
if a gas is moved from a large container to a small container but its temperature and number of moles remain the same, what woul
Ierofanga [76]
The pressure will increase.
3 0
3 years ago
How many total atoms are in 0.380 g of P2O5
pogonyaev
The gram formula mass of P2O5 is 31*2 + 16*5 =142. The mole number of P2O5 is 0.380/142=0.00268 mol. There is 7 atom in one P2O5 molecule. And there is 6.02 * 10^23 molecule per mol. So the answer is 1.13*10^22 atoms.
7 0
3 years ago
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