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
Nesterboy [21]
3 years ago
12

You need to prepare 250. ml of a 0.600 m aqueous solution of sucrose, c12h22o11(aq, which is used frequently in biological exper

iments.
Chemistry
1 answer:
Darya [45]3 years ago
6 0
Molality is a unit of measurement for concentration that is calculated through the equation,
                               m  = moles of solute / kg of solvent
Recall that because water's density is approximately equal to 1 g/mL, 250 mL of water is also equal to 250 g or 0.25 kg. Substituting the known values,
                            0.6 = moles of solute / 0.25 kg solvent
                        moles of solute = 0.15 moles
Then, we determine the mass of sucrose by multiplying the calculated number of moles with the molar mass of sucrose (342 g/mol). The answer would be equal to 51.3 g. 
You might be interested in
Which has more moles of carbon atoms, 169.2g of vitamin B6 or 176.1g of vitamin C?
ki77a [65]
169.2g of vitamin B6
8 0
3 years ago
Which element will have the greatest attraction for the calcium electrons?
ratelena [41]
Its would be fluorine as its the most electronegative 

hope that helps <span />
6 0
4 years ago
A garbage collector collects food wrappers and aluminum cans from a park. what type of waste is the garbage collector collecting
BartSMP [9]

Answer:

Explanation:

Food wrappers and aluminium wrappers are widely use for packing various eatable items.

For example, in our homes our mother wraps our food for lunch in aluminium foil.

As it helps in keeping the food warm for hours.

Thus, we can conclude that out of the given options, a packaging waste is the garbage collector collecting.

4 0
2 years ago
The process of splitting and Atom into two lighters atoms is called?
natima [27]
<span>The process of splitting and Atom into two lighters atoms is called </span>Nuclear Fission
5 0
3 years ago
What sample size (grams) of Na3PO4 (FW 164.00) known to be 50.00% pure should be used to consume exactly 40.00 mL of 0.1000 M HC
Mkey [24]

Answer:

0.109 g.

Explanation:

Equation of the reaction:

Na3PO4 + 3HCl --> 3NaCl + H3PO4

Number of moles of HCl = molar concentration × volume

= 0.1 × 0.04

= 0.004 mol.

By stoichiometry, 1 mole of Na3PO4 neutralises 3 moles of HCl. Therefore, number of moles of Na3PO4 = 0.004/3

= 0.0013 mol

Mass of Na3PO4 = molar mass × number of moles

= 0.0013 × 164

= 0.219 g

Since 50% of Na3PO4 was present in the sample. Let 100 g be the total mass of the substance

= 0.219 × 50 g/100 g

= 0.109 g.

3 0
3 years ago
Other questions:
  • The molar mass of c3h8o2 (four significant figures) is ________.
    6·1 answer
  • If you want to prepare 5 liters of a 0.35m solution of nh4cl, how many grams of salt
    9·1 answer
  • What is the smallest unit of an element called
    12·2 answers
  • Is Benzylamine polar or not polar?​
    7·1 answer
  • Alcohol and water are best separated from one another by
    14·2 answers
  • I really need help plz plz plz plz plz plz
    13·1 answer
  • You have two pure substance that you cannot identify. Each sample is solid at room temperature. Describe at least five steps in
    8·1 answer
  • Baking soda (NaHCO3, 84.0 g/mol) requires acids from other ingredients to generate the carbon dioxide needed to make bread rise.
    5·1 answer
  • HELP HELP!
    6·2 answers
  • 4. Base your answer to the following question on the elements in Group 2 on the Periodic Table. State, in terms of the number of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!