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
Shkiper50 [21]
3 years ago
8

A 0.85% saline solution is: a.8.5 mL of saline added to 91.5 mL of water b.85 g of NaCl made up to 1,000 mL of water c.0.85 g Na

Cl made up to 100 mL of water d.8.5 g NaCl in 100 mL of water
Chemistry
1 answer:
sineoko [7]3 years ago
5 0

Answer:

c

Explanation:

A 0.85% saline solution would consist of <u>0.85 g NaCl made up to 100 mL of water.</u>

<em>A 0.85% saline solution contains 0.85% by weight of NaCl. Hence, in order to prepare such a solution, 0.85 g of NaCl is weighed out into a beaker or cylinder and distilled water is added up to the 100 mL mark. On the other hand, 8.5 g of the NaCl can be weighed out and then distilled water added to 1000 mL mark. </em>

The correct option is, therefore, c.

You might be interested in
Inertia is _____ to mass
Arisa [49]

Answer:

directly proportional

6 0
3 years ago
Read 2 more answers
HELP ASAP 30 POINTS
allsm [11]

Answer:

Explanation:

Dind out

5 0
3 years ago
Read 2 more answers
The atomic number of an element is determined by the number of electrons in the nucleus of the atom.
iren [92.7K]
A
The number of electrons/protons is the one that determines the atomic number of an element.
7 0
3 years ago
Read 2 more answers
The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In t
Sloan [31]

Answer:

Mass =  42.8g

Explanation:

4 NH 3 ( g ) + 5 O 2 ( g ) ⟶ 4 NO ( g ) + 6 H 2 O ( g )

Observe that every 4 mole of ammonia requires 5 moles of oxygen to obtain 4 moles of Nitrogen oxide and 6 moles of water.

Step 1: Determine the balanced chemical equation for the chemical reaction.

The balanced chemical equation is already given.

Step 2: Convert all given information into moles (through the use of molar mass as a conversion factor).

Ammonia = 63.4g × 1mol / 17.031 g = 3.7226mol

Oxygen = 63.4g × 1mol / 32g = 1.9813mol

Step 3: Calculate the mole ratio from the given information. Compare the calculated ratio to the actual ratio.

If all of the 1.9831 moles of oxygen were to be used up, there would need to be 1.9831 × 4 / 5 or 1.5865 moles of Ammonia. We have 3.72226 moles of ammonia - Far excess. Because there is an excess of Ammonia, the Oxygen amount is used to calculate the amount of the products in the reaction.

Step 4: Use the amount of limiting reactant to calculate the amount of H2O produced.

5 moles of O2  = 6 moles of H2O

1.9831 moles = x

x = (1.9831 * 6 ) / 5

x = 2.37972 moles

Mass of H2O = Molar mass * Molar mass

Mass = 2.7972 * 18

Mass =  42.8g

6 0
4 years ago
How many grams are in 23.0 moles of carbon (C)?
Gnesinka [82]
276 grams of carbon in 23.0 moles
3 0
3 years ago
Other questions:
  • How do I find the number of neutrons in an atom?
    7·2 answers
  • Which is true about an invading species?
    9·2 answers
  • Is it Nephrons or Kidney or Urine or Urethra
    12·1 answer
  • In a reaction involving I− ,  I 2 and starch, you observe the rate at which a blue color appears over time. Which statement is t
    11·1 answer
  • Latitude plays a major role in determining the climate, or long-term weather patterns, of an area. Because of differences in the
    14·1 answer
  • Can I have Help? please
    13·2 answers
  • Answer quickly plz. CO2 dissolving in bodies of water forms_____
    10·2 answers
  • Molecules can be dissolved? Why?
    12·2 answers
  • PLEASE ANSWER ASAP!!!
    10·2 answers
  • What is the height on human
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!