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
Lelu [443]
3 years ago
9

A student dissolved 3.50g of copper (II) nitrate in water and mixed it with a solution of sodium carbonate. The student recovere

d 1.89g of copper carbonate precipitate. If the theoretical yield is 2.35g, what is the percent yield
Chemistry
1 answer:
Arisa [49]3 years ago
3 0

Answer: If the theoretical yield is 2.35g then the percent yield is 80.4%

Explanation:

Given: Actual yield = 1.89 g

Theoretical yield = 2.35 g

Formula used to calculate the percentage yield is as follows.

Percent yield = \frac{actual yield}{theoretical yield} \times 100

Substitute the values into above formula as follows.

Percent yield = \frac{actual yield}{theoretical yield} \times 100\\= \frac{1.89}{2.35} \times 100\\= 80.4 percent

Thus, we can conclude that if the theoretical yield is 2.35g then the percent yield is 80.4%

You might be interested in
Plsss helppppppppp
Fantom [35]
Number one: True Number 2: False because hot stars apear as blue-white and cool stars apear as red
7 0
3 years ago
If a volume of gas 177.6mL was collected at a temperature of 25.8C and the pressure is 799.7 torr, what is the original concentr
Step2247 [10]

Answer:

The original concentration of the acid was 0.605 M

Explanation:

Step 1: Data given

Volume of gas = 177.6 mL = 0.1176 L

Temperature = 25.8 °C = 298.95 K

Pressure = 799.7 torr = 799.7/ 760 = 1.0522368 atm

Volume of acid needed to react = 12.6 mL = 0.0126 L

Step 2: Calculate moles

p*V = n*R*T

n = (p*V)/(R*T)

⇒with n = the number of moles = TO BE DETERMINED

⇒with p = the pressure of the gas = 799.7 torr = 1.0522368 atm

⇒with V = the volume of the gas = 177.6 mL = 0.1776 L

⇒with R = the gas constant = 0.08206 L*atm/mol*K

⇒with T = the temperature = 25.8 °C = 298.95 K

n = 0.007618 moles

Step 3: Calculate original concentration

We need 0.007618 moles of acid to react with the same amount of moles gas

Concentration acid = moles / volume

Concentration acid = 0.007618 moles / 0.0126 L

Concentration acid = 0.605 M

The original concentration of the acid was 0.605 M

5 0
3 years ago
Calculate the volume of oxygen required to burn 12.00 l of ethane gas, c2h6, to produce carbon dioxide and water, if the volumes
kirza4 [7]
The  volume of   oxygen required  to  burn  12.00 L  ethane is calculated  as  follows

find the moles  of C2H6  used

At  STP  1 mole  is  always =  22.4 L, what about  12.00 L

= ( 12.00L  x 1 moles)  22.4 L = 0.536  moles

write the   reacting equation

2C2H6+  7O2 = 4CO2  + 6H2O
by  use  of mole  ratio  between  C2H6 :O2   which is 2:7  the  moles  of O2 

= 0.536  x7/2=  1.876  moles

again  at  STP  1mole =  22.4 L  what  about 1.876 moles

=    22.4 L x 1.876  moles/ 1 mole =  42.02 L


8 0
3 years ago
What is #1 pointing to?<br> a<br> URNA<br> b<br> amino acid chain<br> ribosome<br> С<br> d<br> mRNA
Burka [1]
I farted it tickled my butt cheeks jingled it was hot it was squishy so I did it again
4 0
3 years ago
how many moles of NaCl are dissolved in 250 mL of solution if the solution concentration is 0.150 M?​
aliya0001 [1]
What lol I am just answering so I can get points :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Claire is investigating potential and kinetic energy using a large ball. For her investigation, Claire will stand at the top of
    5·1 answer
  • Select all of the answers that apply. Without its atmosphere, Earth would be _____. warmer bombarded by meteorites similar to Ma
    7·2 answers
  • How To Calculate The Structure Ofan Element?
    7·1 answer
  • So my chem experiment asks us: What is the molarity of a 6.0 ppm solution (it's a 6.0 ppm chlorophyll solution, hexane is the so
    13·2 answers
  • Suppose there are 2.0 x 109 microvilli per cm2 of intestinal epithelium. calculate the total surface area of the microvilli in o
    10·1 answer
  • A force of 49 Newtons is applied to a rock, which causes it
    11·1 answer
  • How many molecules are present in 3.09 mol of silicon dioxide, SiO2
    9·1 answer
  • In a gas-liquid solution, which of these naturally takes a liquid state?
    8·2 answers
  • Total atoms of each element in<br>5CaCl2+3Ca(ClO4)2+4Ca(OH)2​
    5·1 answer
  • Where is carbon dioxide found in nature​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!