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
Anna [14]
3 years ago
7

Toluene (C7H8) and nitric acid (HNO3) are used in the production of trinitrotoluene (TNT, C7H5N3O6), an explosive. C7H8 + HNO3 =

> C7H5N3O6 + H2O (not balanced) (a) what mass in grams of nitric acid is required to react with 454 g C7H8 (b) what mass in grams of TNT can be made from 829 g C7H8 ?
Chemistry
1 answer:
olga55 [171]3 years ago
8 0
  The mass in grams  of nitric  acid that is required  to react  with 454g C7H8 is 932.72  grams

     calculation
find the  moles  of C7H8  used
moles = mass/molar mass

= 454 g/92  = 4.935  moles

balanced reacting  equation

C7H8  +3 HNO3  = C7H5N3O6  +3 H20
by  use of mole ratio between  C7H8  to  HNo3  which is  1:3  the moles of  HNO3  =4.935  x3 = 14.805  moles

mass of HNo3  =  moles  x molar mass
= 14.805  x 63  = 932.72  grams

part B

the  mass of  C7H5N3o6 = 2045.5 grams

calculate the moles of C7H8
= 829 g/92  g/mol  = 9.011  moles

by use of mole  ratio  between C7H8 to C7H5N3O6  which is  1:1  the moles of  C7H5N3O6  is also  = 9.011  moles

mass of  C7H5N3O6  is therefore  =  moles x molar mass

=9.011 x227  = 2045.5 grams
You might be interested in
Radium has a half-life of 1,620 years. In how many years will a 1 kg sample of radium decay and reduce to 0.125 kg of radium?
Tasya [4]
We can calculate years by using the half-life equation. It is expressed as:

A = Ao e^-kt

<span>where A is the amount left at t years, Ao is the initial concentration, and k is a constant.

</span>From the half-life data, we can calculate for k.

1/2(Ao) = Ao e^-k(1620)
<span>k = 4.28 x 10^-4
</span>
0.125 = 1 e^-<span>4.28 x 10^-4 (</span>t)
t = 4259 years
7 0
2 years ago
Read 2 more answers
Determine the empirical formula of a compound that contains 30.45% nitrogen and 69.55% oxygen
melomori [17]

I might not be right but I think the empirical formula is NO2

5 0
3 years ago
Isotopes of carbon differ with the respect to the number of
hodyreva [135]

Answer:

Neutrons.

Explanation:

Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of nucleons).

The isotope of an element is denoted by X^{A}_{Z}

Where; X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

<em>Therefore, the number of neutrons = A - Z</em>

<em>Isotopes of carbon differ with respect to the number of neutrons.</em>

<em>Basically, there are three (3) Isotopes of Carbon and these are;</em>

<em>1. Carbon-12: it has an atomic mass of 12 with 6 numbers of proton and neutron respectively. </em>

<em>2. Carbon-13: it has an atomic mass of 13 with 6 numbers of proton and 7 numbers of neutron. </em>

<em>3. Carbon-14: it has an atomic mass of 14 with 6 numbers of proton and 8 numbers of neutron.  </em>

8 0
3 years ago
Relating ideas explain why ionic crystals melt at much higher temperatures than typical covalent molecular crystals.
gayaneshka [121]
Because of the way the temp is set up
6 0
3 years ago
Is glass biotic or abiotic
zhuklara [117]
Glass is not a living organism, so it is <u>abiotic</u>.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A nucleoside has no ____ group and is not a part of a nucleic acid
    12·1 answer
  • What type of silicate minerals is shown from this arrangement of silicon tetrahedron?
    11·2 answers
  • 1.) Why does carbon form covalent bonds?
    10·2 answers
  • On a mission to a newly discovered planet, an astronaut finds gallium abundances of 61.29 % for 69Ga and 39.71 % for 71Ga. What
    15·1 answer
  • For which element are the number of protons, electron, and neutrons are 36, 36, and 48 respectively? a cadmium b rubidium c brom
    12·2 answers
  • What are the properties of synthetic fuels
    15·1 answer
  • I'll mark you brainliest if you answer first! - Iron filings and copper (II) sulphate solution are mixed together and they produ
    11·1 answer
  • The equivalent weight of crystalline oxalic<br>acid is:​
    9·1 answer
  • Give below are the four mixtures. Choose the correct one which can be separated by winnowing. (i) soybean and chickpeas (ii) whe
    12·1 answer
  • Differentiate between homogenous and heterogeneous catalysis​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!