2 years ago

Any integrated chem buffs out there?

Chemistry

1 answer:

marusya05 [52]2 years ago

5 0

The field of study that Christian Doppler's work influenced the most was about light waves.

Hope it helps you.

You might be interested in

20g of sugar is stirred into a beaker containing 100 g of water. After the sugar has completely dissolved, the solution is put o

ludmilkaskok [199]

Its D I Think because mass cant really disappear

7 0

3 years ago

Read 2 more answers

Who ever answer this is genius ????????? let's see?

Flura [38]

Can you do plsssssssss

help me plssssssssssss meee

3 0

3 years ago

A sample of octane undergoes combustion according to the equation 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O ΔH°rxn = -11018 kJ. What mas

Anna71 [15]

Answer:

$\large \boxed{\text{528.7 g} }$

Explanation:

It often helps to write the heat as if it were a reactant or a product in the thermochemical equation.

Then you can consider it to be 11018 "moles" of "kJ"

We will need a chemical equation with masses and molar masses, so, let's gather all the information in one place.

M_r: 32.00

2C₈H₁₈ + 25O₂ ⟶ 16CO₂ + 8H₂O + 11 018 kJ

n/mol: 7280

1. Moles of O₂

The molar ratio is 25 mol O₂:11 018 kJ

$\text{Moles of O}_{2} = \text{7280 kJ} \times \dfrac{\text{25 mol O}_{2}}{\text{11 018 kJ}} = \text{16.52 mol O}_{2}$

2. Mass of O₂

$\text{Mass of C$_{8}$H}_{18} = \text{16.52 mol O}_{2} \times \dfrac{\text{32.00 g O}_{2}}{\text{1 mol O}_{2}} = \textbf{528.6 g O}_{2}\\\text{The reaction requires $\large \boxed{\textbf{528.67 g O}_{2}}$}$

3 0

3 years ago

Which of the following elements would form the smallest ionic radius and why?

AnnyKZ [126]

Answer:

Sodium

Explanation:

5 0

2 years ago

In an electric current, the ___ particles flow or are pushed along a path

MakcuM [25]

The negative particles flow or are pushed along a path

7 0

1 year ago