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MaRussiya [10]
2 years ago
10

How many molecules are in 7V205?​

Chemistry
1 answer:
elixir [45]2 years ago
7 0

Answer:

Calculate the number of moles you have by taking the Mass / molar mass. if you have 1000 grams ; then 1,000 g / 151.001 g/mol = X g moles. Then multiply by Avogadros # = 6.022140857 × 10^23 molecules per g mole. The result is the # of molecules of MnSO4

Explanation: Hope this helps

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How did scientists solve the nitrogen problem?
taurus [48]

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3 0
3 years ago
If the gas in the piston above has a volume of 20.0 L at a temperature of 25 C what is the volume of that gas when it is heated
dexar [7]

Answer:

15.98 L

Explanation:

First, you need to find T1, T2, V1 and V2.

T1 = 25 C = 298.15 K (25C + 273.15K)

T2 = 100 C = 373.15 K (100C + 273.15K)

V1 = 20. L

V2 = ? (we are trying to find)

Next, rearrange to fit the formula

V2 = V1 x T1 / T2

Next, fill in with our numbers

V2 = 20. L x 298.15 K / 373.15 K

Do the math and you should get...

15.98 L

- If you need more help or futher explanation please let me know. I would be glad to help!

8 0
3 years ago
Read 2 more answers
What is the voltage of a galvanic cell made with zinc (zn) and aluminum (al)?
bonufazy [111]
From the reduction standard potentials;
The emf of Zinc = -0.76 V
and the emf of Aluminium = -1.66 V
In a galvanic cell the component with lower standard reduction potential gets oxidized and that it is added to the anode compartment. 
Therefore. the voltage of a galvanic cell made with zinc and aluminium will be;
Voltage =Ered- Eoxd
             = -0.76 - (-1.66)
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6 0
3 years ago
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Which describes radioactive decay of a substance? More of the radioactivity is lost during the first half-life than in later hal
vovangra [49]

Answer:More of the radioactivity is lost during the first half-life than in later half-lives.

Explanation: Passed test with 98

5 0
3 years ago
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What is the percent composition of Phosphorus in Li3PO3
Vilka [71]

Answer:

you will get 17.983 g of lithium for every 100 g of lithium phosphate.

Explanation:

5 0
3 years ago
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