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
lapo4ka [179]
3 years ago
13

How many kilograms of a fertilizer are made of pure P2O5 would be required to supply 1.69 kilogram of phosphorus to the soil?

Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
3 0

Answer:

3.89 kg P2O5 must be used to supply 1.69 kg Phosphorus to the soil.

Explanation:

The molecular mass of P2O5 is

P2 = 2* 31 =           62

O5 = 5 *<u> 16 =         80</u>

Molecular Mass = 142

Set up a Proportion

142 grams P2O5 supplies 62 grams of phosphorus

x    kg P2O5        supplies 1.69 kg of phosphorus

Though this might be a bit anti intuitive, you don't have to convert the units for this question. The ratio is all that is important.

142/x = 62/1.69            Cross multiply

142 * 1.69 = 62x           combine the left

239.98 = 62x               Divide by 62

239.98/62 = x

3.89 kg of P2O5 must be used.

You might be interested in
How old are the lunar highlands? 1. 1.8 to 2.6 billion years old 2. 3.1 to 3.8 billion years old 3. 4.0 to 4.3 billion years old
Anastaziya [24]
They are about 4.5 billion years old. Hope this helps.
4 0
3 years ago
Read 2 more answers
2. How many moles are there in 20 grams of Carbon?
faust18 [17]

Answer:

1.6666666666666 is the ans bcz in each mole there r 12 grams of carbon so the ans is goingtobe 20÷12

3 0
2 years ago
Prokaryotic is an example of a/an-<br><br> A:tissue <br> B:cell type<br> C:organ<br> D:organism
Leto [7]

Answer:

B. Cell Type

Explanation:

that is the answer i believe

6 0
3 years ago
Read 2 more answers
What is the different types of technology used for cloning animals?
gayaneshka [121]
There are three types of artificial cloning:
Gene cloning: copies a few segments of DNA or genes.
Reproductive cloning: it copies the whole animal.
Therapeutic cloning: produces embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues.
6 0
3 years ago
If one mole of a substance has a mass of 56.0 g, what is the mass of 11 nanomoles of the substance? Express your answer in nanog
9966 [12]

Answer:

616,0 ng is the right answer.

Explanation:

You should know that 1 mole = 1 .10^9 nanomoles

Get the rule of three.

1 .10^9 nanomoles ...................... 56.0 gr

11 nanomoles .....................

(11 x 56) / 1 .10^9 nanomoles = 6.16 x 10^-7 gr

Let's convert

6.16 x 10^-7 gr x 1 .10^9 = 616 ngr

8 0
3 years ago
Other questions:
  • Help me on number 4 and that last one says blood pressure
    10·1 answer
  • 20.0 g of Nitrogen is produced when oxygen gas reacts with NO gas. 29.8 L of oxygen is required at STP to produce this 20.0 g of
    6·1 answer
  • Ammonium Iodide dissociates reversibly to ammonia and hydrogen iodide:
    11·1 answer
  • Which of the following best explains how water is able to dissolve ionic substances?
    15·2 answers
  • Neon atoms are known to produce a mass spectrum that consists of three peaks at m/z values of 20, 21 and 22, with the relative a
    15·1 answer
  • Which resulted from the study of chemistry?
    7·2 answers
  • Reactant A contains 40 J of energy, and Reactant B contains 33.5 J of energy. The reactants combine to form product AB, which co
    11·1 answer
  • I need help with this question <br> I will give brainliest if you get it right
    15·1 answer
  • 9.27 mol of oxygen is equal to______molecules of oxygen <br> Please help I need it
    10·1 answer
  • show that the molecular formula of urea is CH4ON2 if the %by mass of 02 atoms is one mole of urea molecule is 26.66%
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!