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
SVETLANKA909090 [29]
4 years ago
5

What is the mass percent of sodium in NaCl? a)39.34% b)60.66% c)60.66% d)78.68%

Chemistry
2 answers:
rosijanka [135]4 years ago
6 0
Well as it is 39.33% then go with a. also with 58.44 grams of NaCl you have 22.99 g Na so x100% = 39.33%
vodka [1.7K]4 years ago
3 0

Answer:

Explanation:

Molecular mass of NaCl = 58.44g/mol

Molecular mass of Na = 22.98g/mol

Molecular mass of Cl = 35.5g/mol

To find the percentage mass of Na in NaCl we divide the molecular mass of Na by the total number of atoms of Na present in the compound which in this case is 1 by the molecular mass of the compound

%Na = molecular mass of Na / molecular mass of compound.

%Na =( 22.98 / 58.44 ) * 100

% Na = 0.3932 * 100 = 39.32%

The mass percent of Na present in NaCl is 39.32%

You might be interested in
Could a copper metal container be used to store a solution of silver nitrate
marin [14]

Answer:

a

Explanation:

because that is .y answee

7 0
3 years ago
Describe one experiment that could be carried out to determine which chemical reaction, decomposition, dimerization, or racemiza
mash [69]

Answer:

Thermal decomposition

Explanation:

The thermal decomposition of amino acids could be carried out at different temperatures and at fixed pressure in a reactor. The effect of temperature on products and pathway could be determined by using time as a function. The hydrothermal decomposition of amino acids takes two key paths

1. The delamination of amino acids to produce ammonia and organi acids

2. The decarboxylation to produce amines and carbonic acids.

The thermal decomposition is and effective experiment that could determine the chemical reaction rate and order of reaction, since it's working with time.

8 0
3 years ago
KOH +HBr KBr+ H2O<br><br> Which is the acid in this reaction?
Allisa [31]

Answer:

HBr Potassium bromide

5 0
3 years ago
Read 2 more answers
Whats the molar mass of c6h6
N76 [4]
B I did this on a test
3 0
3 years ago
A student collected the data shown in the table below during an experiment.
pentagon [3]

Answer: The answer is C.  A mercury thermometer is better to measure very small changes in temperature.

Explanation:

i took this quiz and this is the answer .

A) A mercury thermometer can measure the freezing point of a liquid that freezes at −80 °C.

B) An alcohol thermometer can measure the boiling point of a liquid that boils at 80 °C.

C) A mercury thermometer is better to measure very small changes in temperature.

D) An alcohol thermometer is better to measure the boiling points of colorless liquids.

3 0
4 years ago
Other questions:
  • _______ is another resource often found buried with oil deposits.
    8·2 answers
  • 17. True or False: Proximal means farther away from the point of attachment of the limb. *
    15·1 answer
  • A 1.0-mole sample of krypton gas has a mass of
    7·1 answer
  • Air is transferred from a 75 L tank where the pressure is 125 psi and the temperture is 288 k to a tire with a volume of 6.1 L a
    15·1 answer
  • How to do it not sure I tried but not sure
    12·1 answer
  • Which of the following elements holds its electrons with the most energy?
    12·1 answer
  • A compound of phosphorus and chlorine contains 3.00grams of phosphorus and 10.3 grams of chlorine. how many grams of phosphorus
    5·1 answer
  • The biggest polluters of The water in the ground are A home owners b farmers C animals or D plant
    11·1 answer
  • What kind of information does the activity series of metals give us?
    5·2 answers
  • Rx: 0.4l of 65% kcl soln. in stock: 30% kcl and 80% kcl. How many ml of 80% kcl is required to fill the doctor's order?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!