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
Arada [10]
3 years ago
10

Chemistry, need answer ASAP!! 50 points and i'll mark brainliest if correct! ^w^

Chemistry
1 answer:
pishuonlain [190]3 years ago
4 0

Answer:

615 g

Explanation:

In order to convert from moles of any given substance into grams, we have to use said substance's <em>molar mass</em>, as follows:

  • # moles * Molar mass = grams of substance.

Thus, we now <u>calculate the molar mass of beryllium iodide</u>, BeI₂, using the <em>molar masses of the elements</em>:

  • Molar Mass of BeI₂ = Molar Mass of Be + (Molar Mass of I)*2 = 262.821 g/mol

Finally we <u>calculate how many grams are there in 2.34 moles of BeI₂</u>:

  • 2.34 mol * 262.821 g/mol = 615 g
You might be interested in
How many molecules are in 1.5 mole of glucose
GalinKa [24]

Answer:

In one mole of glucose, there are

6.022×1023

individual glucose molecules

Explanation:

7 0
3 years ago
What mass of HBO2 is produced from the<br> combustion of 139.5 g of B2H6?<br> Answer in units of g.
aliina [53]

Answer:

m_{HBO_2}=441.8gHBO_2

Explanation:

Hello there!

In this case, since the combustion of B2H6 is:

B_2H_6+3O_2\rightarrow 2HBO_2+2H_2O

Thus, since there is 1:2 mole ratio between the reactant and product, the produced grams of the latter is:

m_{HBO_2}=139.5gB_2H_6*\frac{1molB_2H_6}{27.67gB_2H_6} *\frac{2molHBO_2}{1molB_2H_6} *\frac{43.82gHBO_2}{1molHBO_2}

m_{HBO_2}=441.8gHBO_2

Best regards!

5 0
3 years ago
What are three possible blood type alleles?
Keith_Richards [23]

Answer:

Three possible blood type alleles are Iᴬ, Iᴮ and i

Explanation:

Iᴬ, Iᴮ and i are three possible blood type alleles.

Iᴬ and Iᴮ are known as co-dominant, and The i allele is recessive.

Thus, Three possible blood type alleles are Iᴬ, Iᴮ and i

<u>-TheUnknownScientist</u>

8 0
3 years ago
Read 2 more answers
A balloon is filled with 35.0 L of helium in the morning when the temperature is 303 degrees kelvin. By 3:00 p.m., the temperatu
Anna007 [38]

Answer:

The new volume of the balloon is 38.5 L

Explanation:

Step 1: Data given

Volume at the start = V1 = 35.0 L

Temperature at the start = T1 = 303 Kelvin

Volume by 3pm = TO BE DETERMINED

Temperature by 3pm = 333 Kelvin

<u>Step 2: </u>Calculate the new volume

Charles' gas law says

V1/T1  = V2/T2

V 1  is the initial volume and T1 is the initial temperature

V2 is the final volume and T2 is the final temperature

35 L / 303 Kelvin = V2 / 333 Kelvin

V2 = 35L * 333 Kelvin / 303 Kelvin

V2 = 38.47L ≈ 38.5 L

The new volume of the balloon is 38.5 L

7 0
3 years ago
Read 2 more answers
Please help me to do this assignment
kirill [66]

Answer:

1. Objective

2. Objective

3. Opinion

4. Objective

5. Opinion

6. Opinion

7. Opinion (I think.)

8. Opinion (I think.)

Explanation:

7 0
3 years ago
Other questions:
  • Give the number of significant figures in this number: 40
    7·2 answers
  • Why does liquid medicines kept in dark coloured bottles
    12·2 answers
  • In chemistry when using electrical equipment, what should you look for? <br><br> ASAP! pls !
    13·2 answers
  • What does density have to do with our layers?
    12·1 answer
  • the mass number of a chromium Atom is 52 and it has 24 protons. How many neutrons does this atom have?
    11·2 answers
  • When making an observation you should provide a general description of the subject rather than going into too much detail true o
    11·1 answer
  • Water temperature
    9·1 answer
  • 9. The role of an organism in an ecosystemis called alan
    14·2 answers
  • Please Help Me<br> please help me with my attachment
    7·2 answers
  • 15. In the chemical equation H2O2(aq) → H2O(0) + O2(g), the O2 is a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!