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
Brilliant_brown [7]
3 years ago
10

How many moles are in 30 mL water sample

Chemistry
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

moles of water in 1 ml = 1/18 mol.

take 1 ml and calculate it by 30

1 ml x 30= 30 ml

Explanation:

You might be interested in
What is another name for a condensation reaction?
defon
The other name for a condensation reaction would be dehydration reaction. This reaction happens when two molecules or compounds react forming a larger molecule and a small H2O molecule. From the name itself, water should be produced.
8 0
2 years ago
Hey everyone, I'm starting honors chemistry next year and I want to get prepared for the class. What are the basic keys informat
11Alexandr11 [23.1K]

Answer:

hi!

Explanation:

Well, some things I would do is to know the Periodic Table font and back. Know they elements and their class and atomic number and weight. Know how many atoms make up each element and how many protons, neutrons, and elements are in each atom.

5 0
2 years ago
What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 54?
Anika [276]

Answer:

1. Caffeine, C₈H₁₀N₄O₂

Amount = 1.00/194 = 0.00515 moles

2. Ethanol, C₂H₅OH

Amount = 0.0217 moles

3. Dry Ice, CO₂

amount = 0.0227 moles

<em>Note: The question is incomplete. The compound are as follows:</em>

<em> 1. Caffeine, C₈H₁₀N₄O₂;</em>

<em>2. Ethanol, C₂H₅OH;</em>

<em>3. Dry Ice, CO₂</em>

Explanation:

Amount (moles) = mass in grams /molar mass in grams per mole

1. Caffeine, C₈H₁₀N₄O₂

molar mass of caffeine = 194 g/mol

Amount = 1.00 g/194 g/mol = 0.00515 moles

2. Ethanol, C₂H₅OH

molar mass of ethanol = 46 g/mol

Amount = 1.00 g/46 g/mol = 0.0217 moles

3. Dry Ice, CO₂

molar mass of dry ice = 44 g/mol

amount = 1.00 g/44 g/mol = 0.0227 moles

5 0
2 years ago
Many appliances in your home and school use electrical energy. Which of these appliances is intended to convert electrical energ
Solnce55 [7]

Answer:

music amplifier or a loudspeaker

Explanation:

A music amplifier or a loudspeaker are a few devices that convert electrical energy into sound energy.

As it is a well known fact that energy can neither be created nor be destroyed it can only change from one form to the other. As here it is changing from electrical to sound.

6 0
2 years ago
Determine the number of grams of carbon-14 remaining in this sample at 17,100 years.
earnstyle [38]

Answer: I need help

Explanation:

8 0
3 years ago
Other questions:
  • Which statement is correct about the rate of most chemical reactions? It increases when the concentration of reactants decreases
    8·1 answer
  • Which of the following substances can be decomposed by chemical change?
    14·1 answer
  • Which is a pure substance?
    13·1 answer
  • What is speed ?
    5·1 answer
  • What happens when you add salt to very cold ice?
    11·1 answer
  • 1) identify the physical state of the substances pictured.
    5·1 answer
  • Which of the following pairs of compounds would you expect to form homogeneous solutions when combined? a)CH3CH2CH2CH2CH3 AND CH
    14·1 answer
  • An electron na hydrogen atom moves from level to level 4 The electron then drops from level 4 to level 2. Which statement
    9·1 answer
  • Neutrons released in a fission reaction can strike other nuclei and cause
    14·1 answer
  • 50 POINTS PLEASE ANSWER CORRECTLY
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!