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SOVA2 [1]
2 years ago
9

A 30.5 gram sample of glucose (C6H12O6) contains __________ atoms of carbon.

Chemistry
1 answer:
Zolol [24]2 years ago
5 0
Before we get into the calculation, there are several things that we need to pay attention to:
- There are 6 moles of C
- The carbon mass of a glucose is 180.15 g

So,

<span>#30.5g Glucose(1 mol of glucose/180.15g Glucose)=.169 mol glucose
</span><span>#169 mol glucose(6 Moles of C/1mol C6H12O6)    =1.014 mol of C 
</span>#<span>1.014 Mol C(6.022x10^23 atoms/ 1 Mol)                 = 6.11 X 10^23 Atoms of C</span>
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Which compound lauric acid or sucrose is more soluble in water justify your answers in terms of intermolecular forces?
iogann1982 [59]
Answer is: sucrose is more soluble in water.
Solubility of sucrose (C₁₂H₂₂O₁₁) is about 2000 g in one liter of water (25°C) and solubility of lauric acid (C₁₂H₂₄O₂) is approximately 0,06 g approximately.
That is because sucrose has stronger intermolecular forces (hydrogen bond), Sucrose has more oxygen, more oxygen means more intermolecular bond with hydrogen.
3 0
2 years ago
A solid metal oxide crystallizes in a cubic unit cell. In the unit cell there are metal (M) ions on every corner and in the cent
kotegsom [21]

Answer:

The empirical formula of the solid metal oxide is : MO

Explanation:

M atom is present in the every corner and in the center of every face.

Number of m atoms :

\frac{1}{8}\times 8+\frac{1}{2}\times 6=4

Number of tetrahedral voids in F.C.C = 2n = 2 × 4 = 8

Oxide ion is present in the half of the tetrahedral void

Number oxide ions = \frac{8}{2}=4

The molecular formula of the solid metal oxide is : M_4O_4=MO

The empirical formula represent the lowest number of atoms present in a compound.

The empirical formula of the solid metal oxide is : MO

8 0
2 years ago
A sample of n2 gas occupies 2.40 l at 20°c. if the gas is in a container that can contract or expand at constant pressure, at wh
Bas_tet [7]
From Charle's law the volume of a fixed mass of a gas is directly proportional to the absolute temperature at constant pressure.
Therefore';
V1/T1=V2/T2
    Where; V1 = 2.40 l, T1 = 273 +20= 293 K, V2 = 4.80, and T2= ?
 2.4/293= 4.8/T2
 T2= (4.8×293)/2.4
       = 586 K or  313° C
     

4 0
2 years ago
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Which set of properties does a substance such as CO2(g) have?
mylen [45]
Since CO2 (Carbon Dioxide) is a gas these properties would be: -no definite shape and volume. A gas is invisible and colorless to the human naked eye. An example of pure gas would be like air. Just like air, you see no definite shape and weight or volume. 
5 0
2 years ago
In a group assignment, students are required to fill 10 beakers with 0.720 M CaCl2. If the molar mass of CaCl2 is 110.98 g/mol a
8_murik_8 [283]
The answer is 200 g.

If the molar mass of CaCl2 is 110.98 g/mol, this means there are 110.98 g in 1 L of 1 M solution.
Let's find how many g of CaCl2 are present in 0.720 M.
110.98 g : 1 M = x : 0.720 M
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So there are 79.90 g in 0.720 M. In other words, in 1 L of 0.720 M solution there will be  79.90 g.

Now, we need to prepare ten beakers with 250 mL of solutions:
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79.90 g : 1 L = x : 2.5 L
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8 0
2 years ago
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