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Firlakuza [10]
3 years ago
11

How many moles of trifluoromethanoic acid (CHF3O3S) are present in 9.0345 × 1024 molecules of (CHF3O3S)?

Chemistry
1 answer:
timama [110]3 years ago
5 0
1 mole ------------ 6.02x10²³ molecules
? moles ----------- 9.0345x10²⁴ molecules

( 9.0345x10²⁴) x 1 / 6.02x10²³ =

9.0345x10²⁴ / 6.02x10²³ => 15.007 moles


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Answer:

E. HCl

Explanation:

Cl atom does not have enough electronegativity to make enough positive charge on H.

3 0
3 years ago
Which type of substance is soft has a low melting point is a poor conductor of heat and electricity
stealth61 [152]
Covalent solid, such as candle wax.
4 0
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Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l)
Marina CMI [18]

Answer:

Please see the complete formt of the question below

Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid.

MnO₂(s) + HCl(aq) → MnCl₂(aq) + H₂O(l) + Cl₂(g)

According to the above reaction, determine the limiting reactant when 5.6 moles of MnO₂ are reacted with 7.5 moles of HCl.

The answer to the above question is

The limiting reactant is the MnO₂

Explanation:

To solve this,  we note that one mole of MnO₂ reacts with one mole of HCl to produce one mole of MnCl₂, one mole of H₂O and one mole of Cl₂

Molar mass of MnO₂ = 86.9368 g/mol

Molar mass of HCl = 36.46 g/mol

From the stoichiometry of the reaction, 5.6 moles of MnO₂ will react with 5.6 moles of HCl to produce 5.6  moles of H₂O and 5.6 moles of Cl₂

However there are 7.5 moles of HCL therefore there will be an extra 7.5-5.6 or 1.9 moles of HCl remaining when the reaction is completed

7 0
3 years ago
1- Which of the following has one double covalent bond?
Zielflug [23.3K]

Answer:

C2H6

Explanation:

Carbon forms bonds with itself, this property is called catenation and Carbon also has a tendency to form multiple bonds, double or triple. ... For C2H6, carbon forms double bond with the other carbon, and each carbon has three hydrogen atoms attached to it.

4 0
3 years ago
What is the molarity of a solution made from 0.250 mol of sodium hydroxide and 500 mL of water?
Arlecino [84]

Answer:

\boxed {\boxed {\sf 0.5 \ M \ NaOH}}

Explanation:

Molarity is a measure of concentration in moles per liter.

molarity= \frac{moles}{liters}

There are 0.250 moles of sodium hydroxide (NaOH) and 500 milliliters of water. We need to convert milliliters to liters. Remember that 1 liter contains 1000 milliliters.

\frac{1 \ L}{1000 \ mL}

500 \ mL*\frac{1 \ L}{1000 \ mL}

500*\frac{1 \ L}{1000 }

\frac{500}{1000} \ L=0.5 \ L

Now we have the values to solve for molarity:

  • moles= 0.250 mol NaOH
  • liters= 0.5 L

Substitute the values into the formula.

molarity= \frac{0.250 \ mol \ NaOH}{0.5 \ L}

Divide.

molarity= 0.5 \ mol \ NaOH/ L

  • 1 mole per liter (mol/liter) is equal to 1 Molar or M.
  • Our answer of 0.5 moles of sodium hydroxide per liter is equal to 0.5 M NaOH

molarity= 0.5 \ M \ NaOH

The molarity of the solution is <u>0.5 M NaOH</u>

8 0
3 years ago
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