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
umka2103 [35]
3 years ago
15

Which of the following sets of empirical formula, molar mass, and molecular formula is correct?

Chemistry
1 answer:
lutik1710 [3]3 years ago
3 0

Answer:

CH4N, 90g, C3H12N3

Explanation:

You might be interested in
How many moles of potassium chloride are in 28 grams of KCl?
stiv31 [10]

Answer:

0.3758moles

Explanation:

moles of kcl = mass of kcl/ molar mass of kcl = 28/74.5 = 0.3758moles

7 0
2 years ago
Read 2 more answers
If the atomic mass of 1 oxygen atom is 15.9994 amu, how much mass does of oxygen have?​
Taya2010 [7]

Answer:

Oxygen's atomic weight is 16.00 amu. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom! Molar mass (in grams) is always equal to the atomic weight of the atom!

6 0
3 years ago
Read 2 more answers
Express the number 4.80x10-1 in standard form
rosijanka [135]
The number in standard form is 0.480
6 0
3 years ago
Determine the number of significant figures in the measurement quantity: 2600. kg.
xxMikexx [17]

Answer:

2600 kg has 4 significant figures

Explanation:

Any different number to zero is a significant figure

For example, 1.8 → 2 significant figures

When you  have 0 in the middle of two numbers, we consider it as a significant number

For example, 3.02 → 3 significant figures

When you have 0 on the left in the measure, we do not consider as a sgnificant figures

For example 0.0010 → 2 significant figures (10)

3.0 → 2 significant figures (0 is on the right, not the left)

7 0
2 years ago
What is the density of an object with a mass of 16 g and 3.0 ml
fomenos

Answer:

D = 5.3 g/mL

Explanation:

Density = Mass over Volume

D = m/V

Step 1: Define

D = unknown

m = 16 g

v = 3.0 mL

Step 2: Substitute and Evaluate

D = 16 g / 3.0 mL

D = 5.333333333 g/mL

Step 3: Simplify

We have 2 sig figs.

5.333333333 g/mL ≈ 5.3 g/mL

6 0
3 years ago
Other questions:
  • Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg (s) + O2 (g) →→ 2MgO (s) When 4.50 g of magnes
    13·2 answers
  • The maximum number of electrons in a p sub-level is:
    6·2 answers
  • Thermal energy is added to four identical samples of water what increases in each sample mass density or kinetic energy
    10·1 answer
  • Which type of society survives mainly by foraging for food?
    9·1 answer
  • A 19.0 L helium tank is pressurized to 26.0 atm. When connected to this tank, a balloon will inflate because the pressure inside
    13·1 answer
  • F2(g)+2Br(aq)=Br(t)+F(aq)<br> which species is redused?<br> a)F<br> b)Br<br> c)F2<br> d)Br2
    15·1 answer
  • Where are chemicals found in the home?
    11·2 answers
  • I need helpppp will pay anything !!
    7·1 answer
  • What are adipoyl chloride used for or uses?
    15·1 answer
  • Which rule for assigning oxidation numbers IS correct?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!