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
Calculate the percent of iron in iron (III) hydroxide
Harrizon [31]
Carbon monoxide would be the anwser
4 0
3 years ago
Read: https://kids.britannica.com/kids/article/DNA/390730 (Links to an external site.)
kompoz [17]

Answer:

im not doing your whole homework. but ill give you  one cent ;>, whats ur paypal

Explanation:

4 0
3 years ago
Which pairs would form covalent bonds?
vladimir1956 [14]

A) H and Cl

E) C and O

6 0
3 years ago
Read 2 more answers
Which of the following statements is NOT true?
maria [59]

Answer : The incorrect statements are:

(A) When two nonmetals react, the compound formed is ionic.

(B) Two nonmetals can undergo an oxidation-reduction reaction.

Explanation :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

The two nonmetals can not undergo an oxidation-reduction reaction.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

The metal-nonmetal reaction can always be assumed to be an oxidation-reduction reaction.

For example : 2Na(s)+Cl_2(g)\rightarrow 2NaCl(s)

In this reaction, sodium shows oxidation because the oxidation state changes from (0) to (+1) and and chlorine shows reduction because the oxidation state changes from (0) to (-1).

Hence, the incorrect statements are, (A) and (B)

8 0
4 years ago
1) H, + NH, &lt; -&gt; H +<br> NH4+
Goshia [24]
If this is balancing them its 4H+1NH —> 1H+NH4
8 0
3 years ago
Other questions:
  • Why do scientists consider humans to be "carbon creatures"?<br> PLEASE HELP ME
    9·1 answer
  • When [OH⁻] changes from 10-9to 10-11in a solution: Kw = [H+][OH-] What happens to [H+]?
    12·2 answers
  • Which of the following pairs of elements is most likely to form an ionic bond? Sulfur and Oxygen Carbon and Chlorine Phosphorous
    9·1 answer
  • Which of the following best describes how attractive forces of the molecules in a solid compared to a liquid?
    8·1 answer
  • Calculate the Ksp of Ag2CrO4.
    14·1 answer
  • Al calentar la mantequilla, esta se transforma en liquido, este cambio se denomina?
    5·1 answer
  • Plz plz help me with
    15·1 answer
  • Did you know An apple, potato, and onion all taste the same if you eat them with your nose plugged , CRAZYYYYYYYYY
    5·1 answer
  • What is the process of old crust sinking back into the mantle? *
    10·1 answer
  • Which of the following tools is not used for measurement?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!