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
krok68 [10]
3 years ago
9

A sample of water has a volume of 24.0 millimeters and a mass of 23.8 grams. what is the density

Chemistry
1 answer:
victus00 [196]3 years ago
3 0
24.0mm^3=24÷10÷10÷10cm^3
density=Mass÷Volume
You might be interested in
How many liters of fat would have to be removed to result in a 5.2 lb weight loss? The density of human fat is 0.94 g/mL?​
aksik [14]
I don’t even know I’m just answering for pints
7 0
3 years ago
A chemist requires 0.802 mol Na2CO3 for a reaction. How many grams does this correspond to?
Komok [63]

Answer:

Ok:

Explanation:

So grams = mols*MolarMass. Here, MolarMass (MM) = 105.99g which can be found using the periodic table. mols is given to be 0.802. We can then plug in to get that it corresponds to 85.0g.

7 0
3 years ago
How many grams of octane (C8H18) must be burned to produce 300.0g of CO2?
nika2105 [10]

Answer:

m_{C_8H_{18}}=85.67gC_8H_{18}

Explanation:

Hello there!

In this case, according to the given combustion reaction of octane, it is possible for us to perform the stoichiometric method in order to calculate the mass of octane that is required to consume 300.0 g of oxygen by considering the 2:25 mole ratio, and the molar masses of 114.22 g/mol and 32.00 g/mol respectively:

m_{C_8H_{18}}=300.0gO_2*\frac{1molO_2}{32.00gO_2}*\frac{2molC_8H_{18}}{25molO_2}*\frac{114.22gC_8H_{18}}{1molC_8H_{18}}   \\\\m_{C_8H_{18}}=85.67gC_8H_{18}

Regards!

6 0
3 years ago
How many ammonium ions and how many sulfate ions are present in an 0.250 mol sample of (nh42so4?
Nastasia [14]
Thw answer is PHj78 JJ CP30 R2D2
7 0
3 years ago
What sublevels are contained in the hydrogen atoms first four energy levels what orbitals are related to each?
erik [133]
1st level = s 
<span>2nd level = s,p </span>
<span>3rd level = s,p,d </span>
<span>4th level = s,p,d,f</span>
6 0
3 years ago
Other questions:
  • Which statements are true? The oxidation number for Cu(s) is +2. An oxidizing agent gains electrons. Na+ is formed from the redu
    10·2 answers
  • How many moles of the product fecl3 do you make, when 8moles of fe react with excess cl2
    7·2 answers
  • Jack hypothesize that more mold will grow on a slice of bread that is left in the dark that a slice of bread left in the light h
    5·1 answer
  • . If the combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy, how much heat
    13·2 answers
  • A 30 wt % solution of NaOH is diluted in a mixer to 5 wt%. If the streams entering and leaving the mixer are at 40 oC, find the
    11·1 answer
  • In the galvanic cell Al(s) ǀ Al3+(aq, 1 M) ǀǀ Cu2+(aq, 1 M) ǀ Cu(s) which of the following changes will increase the cell potent
    14·2 answers
  • How many Joules are present in 7401 kJ?
    5·1 answer
  • 30 POINTS HELP Which idea was supported by Aristarchus, Copernicus, and Galileo?
    11·2 answers
  • Please help! 50 points and Brainliest!
    9·2 answers
  • On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and drop
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!