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
Ann [662]
3 years ago
14

Why cant we carry out the combustion of magnesium in a calorimeter?

Chemistry
1 answer:
Butoxors [25]3 years ago
7 0

Answer:              

Explanation:

You might be interested in
Which model shows 6 electrons in the outer shell of the atom?
AVprozaik [17]
D. Model number 2

Hope this helps!! (:
7 0
3 years ago
Read 2 more answers
Why are the electrons in a nitrogen-phosphorus covalent bond not shared equally? which atom do the electrons spend more time aro
a_sh-v [17]
<span>Electrons in a nitrogen-phosphorus covalent bond are not shared equally because nitrogen and phosphorus do not have the same electronegativity. The atoms spend more time around the most electronegative atom nitrogen.</span>
6 0
4 years ago
What is the molecular formula of a compound with the empirical formula so and molecular weight 96.13?
garik1379 [7]
<h3>Answer:</h3>

                  Molecular Formula  =  S₂O₂  (Disulfur Dioxide)

<h3>Solution:</h3>

Molecular formula is calculated by using following formula,

                    Molecular Formula  =  n × Empirical Formula  ---- (1)

Also, n is given as,

                     n  =  Molecular Weight / Empirical Formula Weight

Molecular Weight  =  96.13 g.mol⁻¹

Empirical Formula Weight  =  32.06 (S) + 16.0 (O)  =  48.06 g.mol⁻¹

So,

                     n  =  96.13 g.mol⁻¹ ÷ 48.06 g.mol⁻¹

                     n  =  2.0002 ≈ 2

Putting Empirical Formula and value of "n" in equation 1,

                    Molecular Formula  = 2 × SO

                    Molecular Formula  =  S₂O₂  (Disulfur Dioxide)

4 0
4 years ago
Al2(SO4)3(s) + H2O(l) ---- Al2O3(s) + H2SO4 (aq) calculate enthalpy formation for this reaction. Balance the reaction. Calculate
katen-ka-za [31]

The given chemical equation is:

Al_{2}(SO_{4})_{3}(aq)+H_{2}O(l)-->Al_{2}O_{3}(aq)+H_{2}SO_{4}(aq)

On balancing the equation we get,

Al_{2}(SO_{4})_{3}(aq)+3H_{2}O(l)-->Al_{2}O_{3}(aq)+3H_{2}SO_{4}(aq)

Calculating enthalpy of formation of this reaction from the standard heats of formation of the products and reactants:

ΔH_{reaction}^{0}=[H_{f}^{0}(Al_{2}O_{3}(s)) + (3*H_{f}^{0}(H_{2}SO_{4}(aq))] -   [H_{f}^{0}(Al_{2}SO_{4}(aq)) + (3*H_{f}^{0}(H_{2}O(l))]

=[(-1669.8kJ/mol)+ {3* (-909.27 kJ/mol)}]-[(-3442kJ/mol)+{3*(-285.8 kJ/mol)}]

=[(-4397.61kJ/mol)]-[(-4299.4kJ/mol)]

=-98.21kJ/mol

Total enthalpy change when 15 mol of Al_{2}(SO_{4})_{3}reacts will be=

15 mol Al_{2}(SO_{4})_{3}*\frac{-98.21kJ}{1 molAl_{2}(SO_{4})_{3}} =-1473.15kJ/mol

4 0
4 years ago
Someone please help me with this !
meriva

Answer:

1) 7.256 mol Br2 (Cl2)/(Br2)

The Br2 cancels out, so we have 7.256(2)

This is 14.512.

2) Number of moles = mass / molar mass

Number of moles = 239.7 g/ 35.5 g/mol

Number of moles =  6.8 mol

BrCl=13.6 mol

13.6(11.5.357)

1568.9 g

3) Repeat the same process with problem 2, given that there are 6.022x10^23 atoms in a mole.

Explanation:

Br2 + Cl2 → 2BrCl

4 0
3 years ago
Other questions:
  • ) how much of the primary standard benzoic acid (fm 122.12, density 1.27 g/ml) should you weigh out to obtain a 100.0 mm aqueous
    14·1 answer
  • Identify the conjugate acid base pair <br> H3PO4(ag)+CO32=HCO3-(ag)+HPO42-(ag)
    8·1 answer
  • A colorless solution is known to contain one of these ions. Which ion is present if adding dilute HCl produces a white precipita
    10·1 answer
  • What is the number of moles of chemical units represented by 9.03x10^24? And how do I show work? (DUMB IT DOWN PLEASE)
    12·1 answer
  • Draw the product formed when the compound shown below undergoes a reaction with hbr in ch2cl2. 2-methylbut-2-ene
    5·1 answer
  • What can be used to determine the absolute age of two rocks? *
    15·1 answer
  • When the absolute value of the difference in electronegativity of two adjacent atom in a compound is 1, they are most likely bon
    7·1 answer
  • PLEASE HELP 15 POINTS!! Which equation is needed to solve this problem?
    12·1 answer
  • Which two pairs are isotopes
    13·1 answer
  • What causes atoms to form covalent bonds?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!