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serg [7]
3 years ago
11

What is the mass (in grams) of 8.45 x 1023 molecules of dextrose: C6H12O6 (Mw. 180.16 g/mol)?

Chemistry
1 answer:
Goryan [66]3 years ago
4 0
<span>The mass (in grams) of 8.45 x 10^23 molecules of dextrose is 252.798g Working: Mw. dextrose is 180.16 g/mol therefore 180.16 grams dextrose = 1 mole therefore 180.16 grams dextrose= 6.022x10^23 molecules (Avogadro's number) We have 8.45 x 10^23 molecules of dextrose. Therefore, (180.16 divided by 6.022x10^23) times 8.45x10^23 gives the mass (in grams) of 8.45 x 10^23 molecules of dextrose; 252.798.</span>
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Calcium solid is placed in a solution of iron (III) chloride producing calcium chloride and iron solid
mestny [16]

Answer:

3Ca₍s₎ + 2FeCl₃ ------------------------------------------------------------->  3CaCl₂ + 2Fe₍s₎.

Explanation:

Iron(III) chloride is also known as Iron trichloride and it has the molar mass value of 162.2 g/mol and density of 2.9 g/cm³.

<em>The balanced equation for the chemical reaction between solid calcium and iron (III) chloride is given below as:  </em>

<em />

3Ca₍s₎ + 2FeCl₃ ------------------------------------------------------------->  3CaCl₂ + 2Fe₍s₎.

This kind of chemical reaction is known as <em>single displacement reaction or single replacement reaction. </em>

6 0
3 years ago
What are the atomic number and mass number of this atom
lina2011 [118]
No diagram is given therefore I cannot answer however, use this for reference.
The atomic mass of an atom would be the number of protons PLUS the number of neutrons. Because this atom shown has 6 protons and 6 neutrons, they add up to 12. In this case, the atomic mass of this atom is 12. Atomic number is the number of protons in an atom, in this case it is 6. The atomic number is 6.

5 0
3 years ago
Kobe is testing whether 100 g of substance A, 100 g of substance B, or 100 g of substance C produces more oxygen in a chemical r
skad [1K]
C, the amount of oxygen produced is the dependent variable since that is what is being measured and it is dependent on which substance is being tested
4 0
3 years ago
0.89kg is equivalent to
ahrayia [7]
1.96 pounds, i hope this helped.
3 0
3 years ago
How many moles are in 4.99x1032 molecules of H2o
bogdanovich [222]

Answer:

n≈8,29×10⁸ moles

Explanation:

Nᴀ=6.02×10²³ (constant)

n=N/Nᴀ=

=  \frac{ {4.99 \times 10}^{32} }{6.02 \times 10 ^{23} }  = 828903654

≈8,29×10⁸ moles

5 0
3 years ago
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