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
xeze [42]
3 years ago
12

What voltage will produce 3 A through a circuit that has 15 ohms of resistance?

Chemistry
2 answers:
lozanna [386]3 years ago
6 0

Answer:

5 ohms of resistance

Explanation:

15/3=5

Nesterboy [21]3 years ago
4 0
Answer
5
because
3 divided by 15 is 5
You might be interested in
An unknown gas Q requires 2.67 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the
Misha Larkins [42]

Answer:

The correct answer is 199.66 grams per mole.

Explanation:

Based on law of effusion given by Graham, a gas rate of effusion is contrariwise proportionate to the square root of molecular mass, that is, rate of effusion of gas is inversely proportional to the square root of mass. Therefore,  

R1/R2 = √ M2/√ M1

Here rate is the rate of effusion of the gas expressed in terms of number of mole per uni time or volume, and M is the molecular mass of the gas.  

Rate Q/Rate N2 = √M of N2/ √M of Q

The molecular mass of N2 or nitrogen gas is 28 grams per mole and M of Q is molecular mass of Q and based on the question Q needs 2.67 times more to effuse in comparison to nitrogen gas, therefore, rate of Q = rate of N2/2.67

Now putting the values we get,  

rate of N2/2.67/rate of N2 = √28/ √M of Q

√M of Q = √ 28 × 2.67

M of Q = (√ 28 × 2.67)²

M of Q = 199.66 grams per mole

3 0
3 years ago
Unlock all of them<br> pls pls pls pls pls pls pls pls pls pls pls pls
ladessa [460]
What do you mean by unlock all of them? Please explain
7 0
3 years ago
Which type of molecule forms structures in cells and stores energy? (5 points)
Brums [2.3K]
Just to make sure I’m right, is number 1 miss spelled??
4 0
2 years ago
What mass in grams would 5.7L of hydrogen gas occupy at STP?​
tekilochka [14]

Answer:  The correct answer is:  " 0.54 g " .

__________________________________________

Explanation:

Note that "hydrogen gas" is:  

H₂ (g)  ;   that is:  a "diatomic element" (diatomic gas) ;

_________________________________________

The molecular weight of "H" is:  1.00794 g ;

   (From the Periodic Table of Elements).

So, the molecular weight of:  H₂ (g)  is:

    " 1.00794 g * 2  = 2.01588 g ; {use calculator) ;

_________________________________________

Note the conversion for a gas at STP:

______

  1 mol of a gas = 22.4 L gas;

___

i.e. " 1 mol / 22.4 L " ;

____

So:     " 5.7 L H₂ (g)  *  \frac{1 mol H_{2} }{22.4 L} *\frac{2.01588 g}{mol} =? ;

The "L" ("literes" cancel out to "1" ;  since "L/L = 1 ;

The "mol" (moles) cancel out to "1" ; since "mol/mol = 1 ;

____

and we are left with:

____

 [5.7 * 2.104588 g ] / 22.4  =  ?  g ;

______________________

→ [ 11.9961516  g ] / 22.4 =

          0.53554248214  g ;l

_____________________________

We round this value to:  " 0.54 g " ;

 → since "5.7 L " has 2 (two) significant figures;  

     22.4 is an exact number conversion;

     and "5.7 L" has fewer significant figures than:

    " 2.104588 " ; or:  " 1.00794 " .

  → as such: We round to "2 (two) significant figures."

______________________________

Hope this is helpful.  Wishing you the best in your academic endeavors!

_______________________________

8 0
2 years ago
A solution has a higher boiling point than its associated pure solvent does.
marta [7]

Answer:

4 boiling point elevation

7 0
3 years ago
Other questions:
  • Iton is a transition element a) Give two physical properties of iron tgat are similar to sodium. b) Give three physical properti
    7·1 answer
  • What is the formula for copper(ii) phosphate? capitalization and punctuation count!?
    12·1 answer
  • Which stage in the free radical substitution of methane by chlorine will have the lowest activation
    5·1 answer
  • What happens when a catalyst is added to a chemical reaction that is already in progress?
    11·1 answer
  • Why is the age of the ocean crust used as evidence for plate tectonics?
    7·1 answer
  • Send help thank u asap
    9·2 answers
  • What is the energy of 36.8 g of sodium being heated from 70.5°C to 212.2°C if the
    11·1 answer
  • Which structure is the arrow pointing to?<br><br><br><br> What is the function of this organelle?
    8·2 answers
  • Calculate the number of miles of magnesium,chlorine, and oxygen atoms in 5.00 moles of magnesium perchlorate
    11·1 answer
  • What is the rate of chemical reaction?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!