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
Citrus2011 [14]
2 years ago
12

37.2 moles of hydrogen gas would have what mass? Your answer

Chemistry
1 answer:
raketka [301]2 years ago
5 0

Answer:

74.99g

Explanation:

Mass of a substance can be calculated by using the formula;

mole = mass ÷ molar mass

mass = molar mass × mole

According to this question, 37.2 moles of hydrogen gas is given.

Molar mass of hydrogen gas (H2) = 1.008(2) = 2.016g/mol

mass = 2.016 × 37.2

Mass of H2 = 74.995

Mass = 74.99g

You might be interested in
Which of the following is a sign a chemical reaction has occurred?
tankabanditka [31]
A solid dissolves in abolishing forms from the mixing of 2 liquids
6 0
3 years ago
Read 2 more answers
A student is studying asbestos, a mineral that causes cancer in humans. One of the components of asbestos is silicon, a somewhat
kondaur [170]

Answer:

The characteristic of silicon that is most closely related to its chemical reactivity is that;

It is found in nature in mainly as oxides and silicates

Explanation:

Silicon, which is a member of group 14 of the periodic table has the electron configuration of [Ne]3s²3p² and has a high affinity for oxygen such that the the oxides are known as silicates and it is almost impossible to find pure silicon in nature and it is found in the universe as silica and silicates

Silicate minerals make up over 90% of the Earth's crust such that, by mass silicon is only surpassed by oxygen as the most abundant element found in the Earth's crust.

6 0
3 years ago
Which formula is a molecular compound?<br><br> H2O2<br> CaO<br> MgS<br> NaCl
Alborosie

Answer:

H2O2

Explanation:

8 0
3 years ago
Read 2 more answers
Name the following compound:<br> CH3-CH2-CH2-CH2-CH3<br> CH3 CH3
stepan [7]

Answer:

<u><em>Pentane </em></u>

Explanation:

since we have in here CH3-CH2-CH2-CH2-CH3 5 Carbon atoms and 12 Hydrogen making it C_{5} H_{12}

6 0
3 years ago
A solution prepared by mixing 10 ml of 1 m hcl and 10 ml of 1.2 m naoh has a ph of
blagie [28]

Answer: pH of resulting solution will be 13

Explanation:

pH is the measure of acidity or alkalinity of a solution.

Moles of H^+ ion = Molarity\times {\text {Volume in L}}=1M\times 0.01L=0.01mol

Moles of OH^- ion = Molarity\times {\text {Volume in L}}=1.2M\times 0.01L=0.012mol

HCl+NaOH\rightarrow NaCl+H_2O

For neutralization:

1 mole of H^+ ion will react with 1 mole of OH^- ion

0.01 mol of H^+  ion will react with =\frac{1}{1}\times 0.01mole of OH^- ion

Thus (0.012-0.01)= 0.002 moles of OH^- are left in 20 ml or 0.02 L of solution.

[OH^-]=\frac{0.002}{0.02L}=0.1M

pOH=-log[OH^-]

pOH=-log[0.1]=1

pH+pOH=14

pH=14-1=13

Thus the pH of resulting solution will be 13

7 0
2 years ago
Other questions:
  • Which two values will a spontaneous reaction have?
    15·2 answers
  • What mass of nitrogen gas is required to react completely with 2.79 g of hydrogen gas to produce ammonia?
    15·1 answer
  • Question 26(Multiple Choice Worth 1 points) [01.03]Which of the following statements does not support scientific evidence of the
    5·1 answer
  • Will give brainiest to which gives the most answers! Please answer as many as you can. All help is greatly appreciated!
    6·1 answer
  • Two lab assistants measured a metal rod. One reported the measurement as 250 cm, and the other measured it as 250. cm. These mea
    9·1 answer
  • Compound a on ozonolysis yields acetophenone and propanal. what is the structure of compound a? 1-phenyl-1-hexene 1-phenyl-2-pen
    12·1 answer
  • What is the molarity of a solution that contains 2.38 g of h2c2o4 * 2h2o in exactly 300 ml of solution?
    6·1 answer
  • During local winds which way does the cooler wind blow at night
    13·1 answer
  • Which series of energy transformations occurs as an electric generator powers a light bulb
    9·2 answers
  • Which is a characteristic of aromatic hydrocarbons?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!