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
Sergeu [11.5K]
3 years ago
13

Counting atoms pls someone help me

Chemistry
1 answer:
MrRissso [65]3 years ago
7 0
2 atoms of Al
3 of S
4*3=12 of O
so total= 17
You might be interested in
How many moles are in 5.4x1024 molecules of C4H2F7I, heptafluoro-1-iodobutane? Group of answer choices
jasenka [17]

Given :

Number of molecules of C_4H_2F_7I.

To Find :

How many moles are in given number of molecules.

Solution :

We know, in 1 moles of any element/compound contains 6.022\times 10^{23} at atoms/molecules.

So, number of moles in 5.4\times 10^{24} molecules are :

n = \dfrac{5.4\times 10^{24}}{6.022\times 10^{23}}\\\\n = 8.97 \ moles

Therefore, number of moles are 8.97 .

4 0
2 years ago
Dr. Terror has developed a new alloy called Ultranomium. He is testing a bar that is 1.25 m1.25 m long and has a mass of 382 g.3
MrRissso [65]

Answer:0.8742j/g°C

Explanation: SOLUTION

GIVEN

length of bar=1.25m

mass 382g

temperature= 20°C to 288°C

Q=89300J

Specific Heat Capacity  will be calculated using

Q=mC∆T

where

C = specific heat capacity

Q = heat

m = mass

Δ T = change in temperature

C=Q/ m∆T

=89300/382X(288-20.6)

=0.8742j/g°C

4 0
3 years ago
How many grams are there in 7.5x10^23 molecules of H2SO4
horsena [70]
Moles of H2SO4= 7.5x10^23/ 6.02x10^23 = 1.25 (3sf) moles of H2SO4

Mass of 1 mole of H2SO4= 98.1g

Therefore mass of 7.5x10^23 molecules of H2SO4= 122.63g 
6 0
2 years ago
describe the placement of the crucible lid on the crucible when heating the magnesium. Why is it important that this be done cor
Andreas93 [3]
What
:(((((((((((((((((((((
7 0
3 years ago
6. What is the molecular formula for this compound? The compound's empirical formula and
igomit [66]

Explanation:

A compound's empirical formula tells you the smallest whole number ratio ,The molar mass tells you what the total mass of one mole

6 0
2 years ago
Other questions:
  • If you have 3.0 moles of argon gas at STP, how much volume will the argon take up?
    15·1 answer
  • A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C. a. Write a r
    13·1 answer
  • An easy way to assign the number of d-electrons (the “d count”) in a transition metal ion is to first look at the periodic t
    8·1 answer
  • WHAT MASS OF WATER WILL BE PRODUCED FROM 2.70 MOLES OF CA(OH)2 REACTING WITH HCI
    12·1 answer
  • The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride ( CaCl2), expressed with two
    11·1 answer
  • The second-order rate constant for the dimerization of a protein (P) P + P → P2 is 6.2 × 10−3/M · s at 25°C. Part 1 out of 2 If
    6·1 answer
  • SOMEONE HELP ASAPP...
    11·2 answers
  • In what way is psychology connected to the natural sciences and different than other social sciences?
    6·1 answer
  • Meera added blue copper sulphate crystals to some water in a beaker.
    9·1 answer
  • what layers of protection can be used tot detect and respond to abnormal reactions or process conditions
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!