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
ioda
4 years ago
13

Please help!!

Chemistry
1 answer:
Olegator [25]4 years ago
8 0
Molarity =  Moles/Liter

Use the molecular atomic mass of NaCl to convert from grams to moles.
Molecular mass of NaCl is the sum of its atomic masses. Look at the periodic table to find these. Na is 23 g/mol and Cl is 35.5 g/mol ,
so NaCl = 23 + 35.5 = 58.5 g/mol

multiply to cancel out grams
76 g NaCl * (1mol / 58.5 g NaCl) = 1.3 mol NaCl

over 1 Liter is just 1.3 M NaCl
Hope this helps!
You might be interested in
From where in the solar system did scientists conduct their spectral anaylses in 1948? How do you know?
Kryger [21]

Answer:

They conducted it from earth

Explanation:

There had never been anything capable of observing it from space launched at that time because Sputnik wasn't even launched

3 0
3 years ago
Wendy is using a poorly calibrated electronic balance to measure the mass of a crucible. Her technique in making the measurement
Nataly [62]
B answer is b I repeat it’s b
4 0
3 years ago
Balanced equation for solid magnesium oxide
Y_Kistochka [10]

Answer:

Mg + O2 → MgO

Explanation:

3 0
3 years ago
True or false atoms are made up of tiny particles called molecules true or false
Nana76 [90]
False, Molecules are made of atoms and atoms are made of quarks.
4 0
3 years ago
What is the temperature of CO2 gas if the average speed (actually the root-mean-square speed) of the molecules is 750 m/s?
erastova [34]

Answer:

992.302 K

Explanation:

V(rms) = 750 m/s

V(rms) = √(3RT / M)

V = velocity of the gas

R = ideal gas constant = 8.314 J/mol.K

T = temperature of the gas

M = molar mass of the gas

Molar mass of CO₂ = [12 + (16*2)] = 12+32 = 44g/mol

Molar mass = 0.044kg/mol

From

½ M*V² = 3 / 2 RT

MV² = 3RT

K = constant

V² = 3RT / M

V = √(3RT / M)

So, from V = √(3RT / M)

V² = 3RT / M

V² * M = 3RT

T = (V² * M) / 3R

T = (750² * 0.044) / 3 * 8.314

T = 24750000 / 24.942

T = 992.302K

The temperature of the gas is 992.302K

Note : molar mass of the gas was converted from g/mol to kg/mol so the value can change depending on whichever one you use.

3 0
3 years ago
Other questions:
  • You need to make an aqueous solution of 0.215 M aluminum bromide for an experiment in lab, using a 300 mL volumetric flask. How
    12·1 answer
  • What are the similarities between molecules and elements
    9·1 answer
  • 100 g of an inorganic compound X.5H2O containing a volatile impurity was kept in an oven at 150 degree celcius for 60 minutes. t
    13·1 answer
  • What is the frequency of a photon with a wavelength of 1040 nm. Report your answers to three significant digits. The frequency i
    12·1 answer
  • Which of the following electron configurations are written incorrectly?
    15·1 answer
  • A sample of an ideal gas (5.00 L) in a closed container at 28.0°C and 95.0 torr is heated to 290 °C. The pressure of the gas at
    6·1 answer
  • The proton number of barium (Ba) is 56. It is in Group II of the periidic table how many electrons would you expect a barium ato
    6·1 answer
  • A hot air ballon rises because?
    7·1 answer
  • Part A The first step to engineering is to define the problem. Write down the problem the students have to solve, and describe t
    11·2 answers
  • Which type of region would be most likely to support chemical weathering?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!