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
Firlakuza [10]
3 years ago
5

Can someone help please I will give Brainlyiest

Chemistry
2 answers:
kotykmax [81]3 years ago
7 0

Answer:

See Explanation

Explanation:

moles of NH₃ = 11.9g/17.03 g/mol = 0.699 mole

moles of CN₂OH₄ = 1/2(0.699) mole =0.349 mole

Theoretical yield of CN₂OH₄ = (0.349 mole)(60 g/mole) = 20.963 grams

%Yield = Actual Yield/Theoretical Yield x 100%

= 18.5g/20.963g x 100% = 88.25%

BartSMP [9]3 years ago
4 0

Answer:

same process as last solution I did for you except the mole ratio isn't 1:1 here it is 2:1 so you diveide the moles of NH3 by 2 to get the urea moles

here I got 88.16% yield

Explanation:

You might be interested in
How does a metric prefix modify a unit?
Daniel [21]

Answer:Locate the row corresponding to known unit of torque along the left of the table. Multiply by the factor under the column for the desired units. For example, to convert 2 oz-in torque to n-m, locate oz-in row at table left. Locate 7.062 x 10-3 at intersection of desired n-m units column. Multiply 2 oz-in x (7.062 x 10-3 ) = 14.12 x 10-3 n-m.

Converting between units is easy if you have a set of equivalencies to work with. Suppose we wanted to convert an energy quantity of 2500 calories into watt-hours. What we would need to do is find a set of equivalent figures for those units. In our reference here, we see that 251.996 calories is physically equal to 0.293071 watt hour. To convert from calories into watt-hours, we must form a “unity fraction” with these physically equal figures (a fraction composed of different figures and different units, the numerator and denominator being physically equal to one another), placing the desired unit in the numerator and the initial unit in the denominator, and then multiply our initial value of calories by that fraction.

Explanation:

Since both terms of the “unity fraction” are physically equal to one another, the fraction as a whole has a physical value of 1, and so does not change the true value of any figure when multiplied by it. When units are canceled, however, there will be a change in units. For example, 2500 calories multiplied by the unity fraction of (0.293071 w-hr / 251.996 cal) = 2.9075 watt-hours.

7 0
3 years ago
Newton determined that the attractive force between two masses was DIRECTLY proportional to:
Softa [21]

Answer:

This is Newtons 2nd Law: Force is directly proportional to the acceleration of the object, acceleration is inversely proportional to the mass of the object.

7 0
3 years ago
What’s the answer to this? Pls help
Sedaia [141]

Answer:

First choice

Explanation:

7 0
2 years ago
If HJ = 7x – 27, find the indicated values.
Sever21 [200]
Lubos na paumanhin. maaari mo bang ipaliwanag muli ang tanong? sa totoo lang galing ako sa phillipines, masasabi mo ba sa fillipino; wika ko
6 0
3 years ago
Which one of the following is not matches the organelle with its function
kolbaska11 [484]

Answer:

rip there isnt a photo

Explanation:

i do know a lot about cells tho lol

4 0
3 years ago
Other questions:
  • What can u add into a powdered drink to make it drinkable?
    9·1 answer
  • 1. A scientist studies the reaction 2NO2(g) 2NO(g) + O2(g). She performs three experiments using different concentrations of NO2
    12·1 answer
  • Some plant seeds are adapted to develop only at extremely high temperatures. For what environmental change are
    9·2 answers
  • Arrange these elements in order of decreasing atomic size:sulfur, chlorine, aluminium, and sodium.​
    5·1 answer
  • Consider the reaction H2(g) + Cl2(g) → 2HCl(g)ΔH = −184.6 kJ / mol If 2.00 moles of H2 react with 2.00 moles of Cl2 to form HCl,
    13·1 answer
  • Hydrogen atoms and helium atoms are not the same.<br> True<br> False
    9·2 answers
  • Determine the number of protons and neutrons in an isotope of bromine (br) with a mass number/atomic mass of 79. (the atomic num
    12·1 answer
  • Sometimes atoms form molecules by sharing two pairs of valence electrons. When this occurs, the atoms are said to be joined by..
    6·1 answer
  • What is the work function of gold metal in kJ/mol if light with λ = 234 nm is necessary to eject electrons?
    14·1 answer
  • How many grams of AlCl3 will be produced if 3.85 moles of Al react? Al + ___Cl2 → ___AlCl3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!