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
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

You might be interested in
X) = 3x - 13<br> g(x) = 2x2 - 4x-5<br> {x) = -4-7<br> 6. Find (f- g(x).
Nastasia [14]

Answer:

sorry

Explanation:

don know

8 0
3 years ago
If i add more water than the recipe says what would the solution be
Elan Coil [88]

Answer:

If it is still too liquid, add pasta, rice, tapioca or potato to absorb the excess of liquid. Get inspired by recipes you can make with the ingredients you have at home today.

Explanation:

8 0
3 years ago
7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long
Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

a=\frac{v-u}{t}

thus,

t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds

4 0
3 years ago
How many moles are there in 1.09 kg of Al(OH)3?
alina1380 [7]
  question   1
moles  =  mass/molar  mass  of  Al(OH)3
convert   Kg  to  g
that  is  1.09  x  1000=1090g

moles  is  therefore=1090g/78(molar  mass  of Al(OH)3)=  13.974 moles

   question  2
moles=
2.55g/327.2(molar   mass  of  Pb(CO3)2=  7.79  x   10^-3   moles
from  avogadro  constant
1moles=6.02  x10^23  formula  units
what  about  7.79  x  10  ^-3
={(7.79  x  10^-3)moles  x ( 6.02  x10^23)} /1  mole=4.69  x10^21  formula  units
4 0
3 years ago
2. Calculate the standard free energy change
telo118 [61]

Answer:

-36.67 KJ

Explanation:

Now, we ,must find the  E°cell as follows;

E°cell= E°cathode -  E°anode

E°cathode= -0.25 V

E°anode = -  0.44 V

E°cell= -0.25 -(-  0.44) = 0.19 V

Equation of the reaction; Ni2+ (aq) + Fe(s) → Ni(s) +Fe2+ (aq)

Hence, n=2, there were two electrons transferred.

ΔG=-nFE°cell

ΔG= -(2 * 96,500 * 0.19)

ΔG= -36670 J

ΔG= -36.67 KJ

5 0
2 years ago
Other questions:
  • Use the terms magnetic field and magnetic pole in a sentence
    6·2 answers
  • At night,plants take in the gas of​
    8·1 answer
  • Which of the following correctly lists the name of the element, the symbol for the ion, and the name of the ion?
    13·2 answers
  • If 0.500 mol of NaN3 react what mass I'm grams of nitrogen would result
    8·1 answer
  • Calcule el porcentaje de soluto (%vv) en una disolución preparada con 45,2 mL de ácido nítrico en 205 mL de agua.
    6·1 answer
  • How is the atomic mass of an element calculated? A. by determining the number of electrons in the outer orbital B.by determining
    9·2 answers
  • Explain in terms of atomic structure, why cesium has a lower first ionization energy than rubidium. Determine the family/group i
    10·1 answer
  • Help me pls!!<br> List all three sets of opposing forces.
    15·1 answer
  • How do chemicals hurt our environment
    13·2 answers
  • The reaction of charcoal (carbon) and oxygen is sped up by grinding the charcoal into a fine powder. This is an example of:
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!