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
iragen [17]
3 years ago
15

Given 20.0 g of (NH4)3 PO3 how many moles is this? How many formula units is it? How many hydrogen atoms are present?

Chemistry
1 answer:
Setler79 [48]3 years ago
8 0

Answer:

no of moles = (mass) ÷ molar mass

you get the molar mass from the periodic table

n = 20.0g ÷ ( 149.09 g/mol )

= 0.134 mol

number of formula units = number of moles × (6.022×10^23)

= 8.07×10^22 units

number of hydrogen atoms in (NH4)3 PO3 = 12 × number of formula units

= 9.68×10^23 hydrogen atoms

You might be interested in
How co you find anhydrides?
svet-max [94.6K]
<span>took two ethanoic acid molecules and removed a molecule of water between them you would get the acid anhydride, ethanoic anhydride. The old name: acetic anhydride.</span>
3 0
3 years ago
Determine the highest occupied energy level in the
aleksandrvk [35]
I think its B!!! (: (:
6 0
3 years ago
In animals, nitrogenous wastes are produced mostly from the catabolism of _____. In animals, nitrogenous wastes are produced mos
RoseWind [281]

Answer:

Proteins and nucleic acids

Explanation:

Nitrogen compounds in animals that are no longer of use, or are in access are excreted from the animals body, and are thus called nitrogenous waste. These nitrogenous waste can be excreted in three different ways.

1. Ammonia

2. Urea

3. Uric acid

8 0
3 years ago
A 2.50-l volume of hydrogen measured at â196 °c is warmed to 100 °c. calculate the volume of the gas at the higher temperature
ivann1987 [24]

To solve this we assume that the hydrogen gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant pressure and number of moles of the gas the ratio T/V is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

T1 / V1 = T2 / V2

V2 = T2 x V1 / T1

V2 = (100 + 273.15) K x 2.50 L / (-196 + 273.15) K

<span>V2 = 12.09 L</span>

Therefore, the volume would increase to 12.09 L as the temperature is increased to 100 degrees Celsius.

<span />
5 0
3 years ago
Chemical reactions that ____ energy will not occur without a source of energy
andrezito [222]
Chemical reactions that release energy will not occur without a source of energy.  So the answer is release.
4 0
3 years ago
Other questions:
  • Which type of energy would have nothing to do with ironing clothes?
    10·2 answers
  • Dicing potatoes is a physical change. true or false?
    13·2 answers
  • What is the concentration of ALL ions in a 0.20 M solution of Na3PO4
    13·1 answer
  • A 613 ml sample of hydrogen gas at 968 torr is held at a constant temperature while it is compressed to 157 ml. what is the new
    9·1 answer
  • Mildred takes a pound of frozen hamburger meat out of the freezer and puts it into the refrigerator. Which of the following best
    10·2 answers
  • 1.
    5·2 answers
  • This graph represents an endothermic reaction. What does it show about the potential energy of reactants and products? Abuzua nu
    11·1 answer
  • How was your day????????​
    10·2 answers
  • Which set up would correctly complete the work for determining how many moles of NaOH will be produced if 10.5 grams of water (H
    7·1 answer
  • An electrolyte can be checked to ensure that it has correct chemical composition by measuring its _____.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!