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
DaniilM [7]
3 years ago
10

Anyone know how to do this? It’s for Chemisty

Chemistry
1 answer:
Gennadij [26K]3 years ago
7 0
You have to take the top quantity and divide it by the crossponent
You might be interested in
How many kilograms of solvent would contain 0.43 mol of CaO in a 2.5 molality solution
dalvyx [7]
<h3>Answer:</h3>

0.024 kg CaO

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Aqueous Solutions</u>

  • Molarity = moles of solute / liters of solution

<u>Atomic Structure</u>

  • Reading a Periodic Tables
  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

0.41 mol CaO

2.5 M Solution

<u>Step 2: Identify Conversions</u>

1000 g = 1 kg

Molar Mass of Ca - 40.08 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of CaO - 40.08 + 16.00 = 56.08 g/mol

<u>Step 3: Convert</u>

  1. Set up:                                \displaystyle 0.43 \ mol \ CaO(\frac{56.08 \ g \ Cao}{1 \ mol \ CaO})(\frac{1 \ kg \ CaO}{1000 \ g \ CaO})
  2. Multiply:                              \displaystyle 0.024114 \ kg \ CaO

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs as our lowest.</em>

0.024114 kg CaO ≈ 0.024 kg CaO

4 0
3 years ago
Read 2 more answers
What is the density of a substance that has a mass of 453g and a volume of 224mL?
Savatey [412]
453 divided by 224
density is roughly 2.02 g per ml
as a ml is 1 cm3 density is 2.02 grams per centimeter cubed
7 0
3 years ago
How are covalent compounds similar to acids?
Ivan

Answer:

Acids are substances that produce an create high amounts of H+ ions when dissolved in water. And because the hydrogen bond's with non-metals,it forms covalent bonds. So,all acids are covalent bonds.

Explanation:

Colavent compounds are colavent bonds

Source:

https://www.quora.com/Are-acids-covalent-compound

5 0
3 years ago
Calculate the acid dissociation constant of a weak monoprotic acid if a 0.5M solution of this acid gives a hydrogen-ion concentr
RUDIKE [14]
Let the acid be HA.
The chemical formula for this acid will be the following:

HA \rightleftharpoons  H^{+}+A^{-}

The formula for the <span>acid dissociation constant will be the following:

</span>K_a= \dfrac{[H^+][A^-]}{[HA]}
<span>
We know [H+]=0.0001 (it's given).
However, we must find [A-] and [HA] in order to solve for the constant.

We find that [A-]=[H+] by using a electroneutrality equation.
Also, we can create a concentration equation to find [HA].

</span>0.5M=[A^-]+[HA]
[HA]=0.5M-[A^-]
<span>
Now, we can find the acid dissociation constant.

</span>K_a= \dfrac{[H^+][A^-]}{0.5M-[A^-]}

= \dfrac{0.0001*0.0001}{0.5-0.0001} = 2.0*10^{-8}
4 0
3 years ago
For an exothermic reaction, what effect will increasing the temperature have on the equilibrium?
VLD [36.1K]
The result of an exothermic reaction is released heat. According the Le Chatelier's principle, increasing<span> the </span>temperature means increasing<span> the amount of products. This means that </span><span> there will be more reactants left at equilibrium.</span>
5 0
3 years ago
Other questions:
  • Which of the following is an endothermic reaction?
    13·2 answers
  • Comment on whether each of the following is a homogeneous mixture or a heterogeneous mixture: (a) air in a closed bottle, (b) ai
    9·1 answer
  • Is it possible to see the tiny particles that make up a grain of sand
    14·2 answers
  • What is the answer to the net ionic equation FeO(s)+2HClO4(aq)--&gt; Fe(ClO4)2 (aq)+ H2O(l)
    7·2 answers
  • PLEASE ANSWER ASAP!
    6·1 answer
  • What three factors affect the biodiversity of an ecosystem
    10·2 answers
  • You titrate 25.00 mL of the lemon-lime Kool-Aid (with KI, HCl, and starch) with 0.001000 M KIO3(aq) solution. The titration requ
    15·1 answer
  • DIRECTIONS: Use the Word Bank to answer the questions below. For questions 2 and 3 circle the correct choice.
    8·1 answer
  • para una practica de laboratorio se requiere una disolucion de acido nitrico HNO3 al 3,5M,pero se dispone de un frasco de 1 litr
    14·1 answer
  • Marking anybody who got it the brainliest​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!