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
Ganezh [65]
3 years ago
7

How many grams of glucose are needed to prepare 400. g of a 2.00% (m/m) glucose solution g?

Chemistry
1 answer:
Dominik [7]3 years ago
5 0
The grams   of glucose  are  needed  to  prepare  400g  of  a 2.00%(m/m)  glucose  solution  g  is  calculated  as  below

=% m/m =mass  of the solute/mass  of  the  solution  x100

let mass of   solute  be represented  by  y
mass  of solution = 400 g
 % (m/m) = 2% = 2/100

 grams  of  glucose  is  therefore =2/100 =  y/400
by cross  multiplication

100y = 800
divide   both side  by  100

y= 8.0 grams



You might be interested in
Intermolecular forces allow which of the following substances to be the least fluid?
slava [35]
Out of the options, glass is the least fluid. The proof of this also lies in the fact that glass is the most difficult to melt out of all of the mentioned substances, and melting point gives us a rough estimate of the strength of intermolecular forces.
3 0
3 years ago
Read 2 more answers
Alkanes and alkenes differ in that alkene molecules contain at least one:
Zarrin [17]

Answer:

Double bond

Explanation:

an alkene is a unsaturated hydrocarbon which means that it contain at least one double bond

4 0
3 years ago
Read 2 more answers
HELP ME AGAIN FOR BRAINLIEST
oksano4ka [1.4K]

Answer:

1: C

2: a

3: B

4: D

hope this helps

7 0
3 years ago
I need some help understanding this.​
otez555 [7]

Answer:

c^21, t^729, CH^56>748, do this to calculate the moceluar mass

4 0
3 years ago
What is adaptation, and what are some examples of it?
Alja [10]
An adaption is a change or process an organism goes through to become better suited for its environment.

Example: A polar bear having white fur in order to blend in in its environment.
6 0
3 years ago
Other questions:
  • An atom of 110Sn has a mass of 109.907858 amu. Calculate the mass defect in amu/atom. Enter your answer with 4 significant figur
    7·1 answer
  • Consider a wooden chair and a balloon. What do these two
    15·1 answer
  • Science questions please help.
    14·1 answer
  • Identify any solutes and solvents present in a mixture of 0.05 mol ethanol, 1 liter water, and 0.2 g hydrogen
    7·1 answer
  • What type of mirror should be used for this application? Explain why this mirror is the right choice for a telescope.
    6·1 answer
  • According to the reaction, below, how many grams of aluminum are needed to react fully with 100 grams of sulfur? 2AL + 3s - Al2S
    6·1 answer
  • An isotope of an element whose number of protons and neutrons place it on the edge of the Island of Stability is most likely
    7·1 answer
  • Elabore el balance de la ecuación por oxido reducción enumerando cada paso
    9·1 answer
  • Explain, in terms of particles, what happens when methane boils and why
    10·1 answer
  • A physical change is ...
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!