1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
madreJ [45]
3 years ago
15

1.) C6H12O6 (aq) is a(an)?

Chemistry
1 answer:
Marina86 [1]3 years ago
8 0

Answer:

1) D. Dissolved Molecule

2) C. 11.30 M

Explanation:

<u><em>Q1:</em></u>

  • Glucose (C₆H₁₂O₆) is a non-polar molecule.
  • When it is dissolved in water, it will be a dissolved molecule.
  • It can not be ionized in water.
  • So, the right choice is: <em>D. Dissolved molecule.</em>

<u><em>Q2</em></u>:

  • The molarity is the no. of moles of dissolved solute in a 1.0 L of the solution.

<em>M = (n)solute (1000/V (mL) of the solution)</em>

n of LiCl = 2.60 mol, V = 230.0 mL.

∴ M = (n)solute (1000/V (mL) of the solution) = (2.60 mol)(1000)/(230.0 mL) = 11.30 M.

You might be interested in
PLEASE HELP ME ANSWER
ELEN [110]
It’s metric system dude
3 0
3 years ago
Read 2 more answers
Calculate the energy released when 24.8 g Na2O reacts in the following reaction.
gizmo_the_mogwai [7]

Answer:

<u>= 48.077 kcal </u>

Explanation:

The balanced equation is :

Na_{2}O(s)+2HI(g)\rightarrow 2NaI(s)+H_{2}O(l)

\Delta H=-120Kcal

Since the stoichiometric coefficient of Na2O = 1 hence its heat is  

<u>-120 Kcal/mol</u> rather -120 Kcal only.

This means when 1 mole of the Na2O is burned , then 120 kcal of energy is released .

Molar mass of  Na2O = 2(mass of Na) + 1(mass of O)

= 2(22.98)+16

=61.97 gram/mol

Molar mass = mass of the substance in grams present in 1 mole of it.

In 1 mole of Na2O , 61.97 gram of it is present.

Hence

61.97 gram of Na2O = -120 Kcal of heat is released

1 gram of Na2O =

/frac{-120kcal/mol}{61.9gram/mol}

So,

24.8 gram of Na2O will produce,

/frac{-120kcal/mol}{61.9gram/mol}/times 24.8

= -48.077 kcal of heat

You can also proceed through mole concept:

Calculate number of moles in 24.8 gram Na2O

Moles=\frac{given\ mass}{Molar\ mass}

Moles of Na2O = 24.08/61.9 = 0.4007 moles

So these many moles will produces:

0.4007 x 120

=-48.07

7 0
3 years ago
Can ultraviolet rays be felt by your skin but can not be seen by your eyes? If not then what is it
Sindrei [870]
Yes it can actually!
4 0
4 years ago
(Giving brainliest)
Aneli [31]
It would repel some of the negatively charged electrons of the wall so the answer would be C. The wall and the ballon repel each other
4 0
3 years ago
Read 2 more answers
A scientist has a 98,3 g sample of silicon, How many silicon atoms are in the sample?
Leno4ka [110]

The number of silicon atoms that are in this sample is: B. 2.11 \times 10^{23} \;atoms

<u>Given the following data:</u>

  • Mass of silicon = 98.3 grams

<u>Scientific data:</u>

  • Avogadro's number = 6.02 \times 10^{23}
  • Molar mass of silicon = 28.09 g/mol.

To determine the number of silicon atoms that are in this sample:

First of all, we would determine the number of moles contained in 98.3 grams of silicon.

Number\;of\;moles = \frac{mass}{molar\;mass}\\\\Number\;of\;moles = \frac{98.3}{28.09}

Number of moles = 3.4995 moles

<u>By stoichiometry:</u>

1 mole of silicon = 6.02 \times 10^{23} atoms

3.4995 moles of silicon = X atoms

Cross-multiplying, we have:

X = 6.02 \times 10^{23} \times 3.4995\\\\X= 2.11 \times 10^{23} \;atoms

Read more on atoms here: brainly.com/question/10614569

4 0
2 years ago
Other questions:
  • How much energy is realeased to the environment by 50.0 grams of condensing water vapor
    12·1 answer
  • 2C4H10 + 13 02 -- 8 CO2 + 10H20
    5·2 answers
  • How many helium atoms are in a helium blimp containing 498 kg of helium?
    7·1 answer
  • Which one A, B, C,D,E,F
    15·1 answer
  • How many atoms are in 0.23 moles of calcium?
    8·1 answer
  • What is the speed of a man walking for 30 meters and he walked for 5 seconds ​
    5·1 answer
  • How many molecules of oxygen is used when 15 grams of CH4 is burned in open air?
    5·1 answer
  • Write balanced net ionic equations and the corresponding equilibrium equations for the stepwise dissociation of the triprotic ac
    12·1 answer
  • How to gain weight?<br>explain me please. ​
    5·2 answers
  • Elements are usually dull, brittle and do not conduct electricity are know as_____.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!