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
charle [14.2K]
3 years ago
15

Calculate the formula/molecular mass of following

Chemistry
1 answer:
ddd [48]3 years ago
8 0

Answer:

Refer to the period table. Use the atomic mass for calculation. Multiply the atomic mass with the number of atoms. For example, Al2(SO4)3. (27 × 2) + (32 x 3) + (16 x 12) = molecular mass

You might be interested in
What is the pH of a 2.6 x 10-9 M H+ solution? pH ?]
bija089 [108]

Answer: The value of the pH is 8.58

Explanation:

The pH is defined negative logarithm of the H^+ ions concentration in a given solution.

[H^+]=2.6\times 10^{-9} M

pH=-\log{H^+}

pH=-\log[2.6\times 10^{-9}]=5.58

The value of the pH is 8.58

6 0
3 years ago
Fill in the Blank
Sunny_sXe [5.5K]
Wood is type of biomass that’s uses heating homes, via wood burning fires, dates back centuries.
3 0
3 years ago
Omg, I need help ASAP. Btw this is science.
nikdorinn [45]

Answer: B. Asexual Reproduction

Explanation:

Vascular is typically only spores, sexual reproduction does not seem to fit this, and fertilization could be a key but most likely not. I am sorry if this is wrong.

4 0
3 years ago
Using 25 micromoles, pmoles, of CO2 consumed how many grams of glucose (MW = 180 g/mole) were produced?
Sladkaya [172]

Grams of glucose = 0.7488 mg=748.8 μg

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

6CO₂+6H₂O⇒C₆H₁₂O₆+6O₂

25 micromoles, μmoles, of CO₂ :

moles CO₂ : moles glucose - C₆H₁₂O₆ = 6 : 1, so :

\tt moles~glucose=\dfrac{1}{6}\times 25\mu~moles=4.16\mu~moles=4.16\times 10^{-6}~moles

mass of glucose

\tt mass=mol\times MW\\\\mass=4.16\times 10^{-6}\times 180\\\\mass=7.488\times 10^{-4}g=0.7488~mg=748.8\mu g

8 0
3 years ago
Which of the following elements does not form an ion with a charge of plus one hydrogen fluorine sodium or potassium
Reil [10]

Answer:

ffgbhjhuujghhfjbbjkbbb

6 0
3 years ago
Read 2 more answers
Other questions:
  • A scientist observes that after mixing a solid powder into water, the pH of the newly formed solution is 2.7. What can he infer
    6·2 answers
  • Which of the following describes a synthesis reaction?
    14·1 answer
  • What is the percent of sugar?
    9·1 answer
  • Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)2(aq)+2
    15·1 answer
  • Gold atoms form small clusters containing a fixed number of atoms. What is the mass (in grams) of oneAu31 cluster
    7·1 answer
  • Which element forms steel when added to carbon?
    12·1 answer
  • Mallory combines two chemicals and notices that each chemical retains its original properties. What did Mallory form?
    13·1 answer
  • Is the valency of carbon 2 or 4​
    8·2 answers
  • assume you are performing the calibration step of experiment 8 and you begin with 80 g of water at 20 oc and 80 g of water at 80
    15·1 answer
  • 100 grams of iron ore contains 30.06% oxygen find the empirical formula​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!