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
taurus [48]
3 years ago
12

Need helped for this

Chemistry
1 answer:
yarga [219]3 years ago
3 0
Molar mass of PH3: 34.0 g/mol
17.0g PH3 x 1 mol PH3 / 34.0 g = 0.5 mol PH3
You might be interested in
When 167.2 joules of heat is added to 4.00 grams of water at 10c the resulting temperature is what
Katena32 [7]
Q=mc \Delta T \\\\
Q=168,2J\\
m=4g\\
c=4.184\frac{J}{g^{o}C}\\\\
\Delta T=\frac{Q}{mc}=\frac{167,2J}{4g*4,184\frac{J}{g^{o}C}}=9,99^{o}C\\\\
\Delta T = T_{f}-T_{i}\\\\
9,99^{o}C=T_{f}-10^{o}C\\\\
T_{f}=9,99^{o}C+10^{o}C=19,99^{o}C\approx20^{o}C
5 0
3 years ago
When the temperature is increased, what does not change?
gavmur [86]

Answer:

Pressure

Explanation:

They are both equal but do not change when the other does

3 0
3 years ago
The name 3-chloro-2-propylbutane is not an accepted name for the compound described. what would be the correct name for this com
Illusion [34]
The longest hydrocarbon chain in the given compound is hexane, therefore it is the parent chain to be considered with one methyl group attached to the 3rd carbon and one chloro attached on the 2nd carbon, therefore the name of the compound is 2-chloro-3-methylhexane
3 0
3 years ago
What are two main purposes for using repetition when conducting experiments <br> irements
Sloan [31]
To reduce mistakes and save time
4 0
3 years ago
Read 2 more answers
Extreme temperature changes or increased moisture speed up the weathering rate.
____ [38]

that is a true statement

6 0
3 years ago
Other questions:
  • If 22.6 grams of an aqueous solution of zinc nitrate, Zn(NO3)2, contains 5.08 grams of zinc nitrate, what is the percentage by m
    10·1 answer
  • Does sugar evaporate in water? for science fair project!
    13·2 answers
  • What is the coefficient of the acid that produces AlCl3 in the reaction mixing Al(OH)3 and HCl after the equation has been balan
    15·1 answer
  • The introduction of synthetic fertilizers and chemical pesticides to farming date back to the __________
    14·1 answer
  • 7. In which environment would liverworts and hornworts grow?
    10·1 answer
  • Mercury can be obtained by reacting mercury(II) sulfide with calcium oxide. How many grams of Mercury metal are produced when 2.
    6·1 answer
  • How many moles are in 8.3 x 10^23 molecules of H2O?
    12·1 answer
  • Please help ASAP Which two changes of state can occur when a substance loses thermal
    5·2 answers
  • 7) Explain how the atomic number of an element identifies the element.
    7·2 answers
  • What will happen as these two magnets are pushed closer together?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!