How many grams are in 1.11 moles of manganese sulfate ?
Answers
There are 929 grams in 1.11 moles of manganese sulfate.
What are moles?
The mole is a SI unit of measurement that is used to calculate the quantity of any substance.
Step1: Calculate the molar mass of
3(54.94) + 7(32.07) + 28(16) = 837.31g
Step2: Calculate the mass of
Thus, the mass of 1.11 moles of is 929 grams.
Learn more about moles
Step 1: Find the molar mass of Mn3(SO4)7.
Mn3(SO4)7 = 3(54.94) + 7(32.07) + 28(16) = 837.31g
Step 2: Calculate grams of Mn3(SO4)7 in the following manner:
1.11 mol Mn3(SO4)7 (837.31g Mn3(SO4)7 /1 mol Mn3(SO4)7 ) = 929g Mn3(SO4)7
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What is the mass of an unknown whose volume is 0.45L and whose density is 94kg/L
Answers
According to zeroth law of thermodynamics, when two objects are kept in contact, heat (energy) is transferred from one to the other until they reach the same temperature (are in thermal equilibrium). When the objects are at the same temperature there is no heat transfer.
So, at equilibrium, =
,
+
q=m×c×T, where q = heat energy, m = mass of a substance, c = specific heat (units J/kg∙K), T is temperature
=(15X13X4.19)+(148X88.3X4.19)
= 81.37 ° C
Answers
Answer:
A body of air with horizontally uniform temperature, humidity, and pressure.
Explanation:
hope this helped :)
An
yedsdfsdfdsfsdfsd f sdf ssdf sdfsdf sd fsdf sd
Explanation:
If you have 1.0 mole of each of the following compounds, which will have the most molecules?
Х
NI3 (nitrogen triiodide)
KCI (potassium chloride)
Lici (lithium chloride)
O C2H2 (ethyne)
O They all have the same number of molecules.
7
1/1 point
fn 35 moles of Iron (Fe)?
Answers
Answer:
6. They all have the same number of molecules.
7. 19.5 g
Explanation:
6. From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ molecules i.e
1 mole = 6.02×10²³ molecules
Considering the question given above, each compounds has just 1 mole. Thus, they will also have the same number of molecules.
7. Determination of the mass of iron (Fe)
Number of mole of Fe = 0.35 mole
Molar mass of Fe = 55.85 g/mol
Mass of Fe =?
Mass = mole × molar mass
Mass of Fe = 0.35 × 55.85
Mass of Fe = 19.5 g
Thus, the mass of 0.35 mole of iron (Fe) is 19.5 g
Answers
Answers
M = No.of moles of solute / Volume of solution in litres
HBr: H = 1 x 1 = 1 Br = 1 x 80
Molar mass : 81 g / mol
a. n = 27.7% / 100 =0.277 g / (81 g / mol) = 0.0034 mol
density = 1.24 g/ml ; D= m / v
b. 65.32 ml x 1 L / 1000 mL = 0.065 L
c. M= n / V
= 0.0034 mol / 0.065 L
M= 0.052 mol / L
The molarity of the concentrated HBr solution is 0.052 mol/L