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kotegsom [21]
4 years ago
10

Does the nucleus (protons and neutrons) weigh more than the electrons?

Chemistry
2 answers:
Butoxors [25]4 years ago
3 0
The mass of nucleons (and thus of the nucleus) is roughly 1000 times greater than that of electrons.
vichka [17]4 years ago
3 0
Yes, protons and neutrons weigh much more than electrons. Which is why the mass of an element is the protons and neutrons added together, disregarding the electrons. Their weight is almost negligible.
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Methane reacts with chlorine to produce methyl chloride and hydrogen chloride. Once formed, the methyl chloride may undergo furt
balandron [24]
Your gonna half to space this out in order for me to answer if you don’t mind. I’ll answer in the comments
5 0
3 years ago
Calculate the mass of glucose metabolized by a 60.0 −kg person in climbing a mountain with an elevation gain of 1550 m . Assume
lbvjy [14]

Answer:

Mass of glucose = 515.34 g

Explanation:

We are given;

Mass; m = 60 kg

Elevation; h = 1550 m

Acceleration due to gravity; 9.8 m/s²

Now, work performed to lift 60kg by 1550m is given by the formula;

W = mgh

W = 60 × 9.8 × 1550

W = 911400 J

We are told the actual work is 4 times the one above.

Thus;

Actual work = 4W = 4 × 911400 = 3,645,600 J

Now,

Molar mass of Glucose(C6H12O6) = 180 g/mol

We are given standard enthalpy of combustion = -1273.3 KJ/mol = -1273300

Moles of glucose = 3645600/1273300 = 2.863mol

Mass of glucose = 2.863 mol × 180 g/mol

Mass of glucose = 515.34 g

4 0
4 years ago
If you have 5.22*1022 molecules of glucose (C6H12O6) how many grams is this?
lianna [129]

Answer:

5.22*1022 molecules of glucose (C6H12O6)  is equal to 15.08 grams

Explanation:

Number of molecule of glucose in one mole = 6.023 * 10^{23}

Now mass of one mole of glucose = 180 grams

Number of moles in 6.023 * 10^{23} molecules of glucose = 1

Number of moles in 1 molecules of glucose =  \frac{1}{6.023 * 10^{23}}

Number of moles in 5.22 * 10^{22} molecules of glucose =  \frac{5.22* 10^{22}}{6.023 * 10^{23}}  = 0.083 moles

Weight of 0.083 moles

= 0.083 * 180\\= 15.08grams

7 0
3 years ago
Chemistry Help:
Umnica [9.8K]
It's answer A!
Reactants on left (see on the arrow), products on right.
7 0
3 years ago
what is the molarity of a concentrated hbr solution if the solution is 27.7% hbr by mass and has a density of 1.24 g/ml
givi [52]
Answer: 
         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
          

3 0
4 years ago
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