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Nastasia [14]
3 years ago
14

Water has a molar mass of 18.0 g/mol. How many particles of water do you drink if you drink 64 oz., or 1893 grams, of water in a

day?

Chemistry
1 answer:
umka21 [38]3 years ago
4 0

Answer:

\frac{1839}{18}  = 102.16

Take 102.16 and multiply by avogadros #

and you get 6.33 × 10^25 otherwise A

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beks73 [17]

Answer: b

Explanation:

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3 years ago
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What the answer for number 7
Alexus [3.1K]

Antimony Sb

Explanation:

The element that will have similar chemical properties with Arsenic As is element Antimony or Sb.

An element is a distinct substance that cannot be split-up  into simpler substances. They are made up of only one kind of atom.

  • The chemical properties of an element is determined mostly by the number of electrons in its outermost shell.
  • This is called the valency of an element.
  • Element having the same valency behaves the same way chemically.
  • They exchange the same number of electrons during chemical reaction.

Therefore, elements in the same group on the periodic table have the same chemical properties.

Elements in the same group have the same valency.

Anitmony and Arsenic belongs to group 5 on the periodic table. The elements in this group are Phosphorus, Arsenic, Antimony and Bismuth.

learn more:

Chemical properties brainly.com/question/2376134

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7 0
3 years ago
Which step do you use first to calculate the number of grams of FeCl2 produced when starting with 30.3 g of Fe in this reaction?
Lisa [10]

Answer:

I dont care I want pionts

5 0
3 years ago
2. The number of molecules in 1.0 mole of So2 is the same as the number of molecules in:
m_a_m_a [10]

Answer:

1.0 moles of N2

Explanation:

since

1.0 × avogadro's no# = same answer for SO2 and N2

avogadro's no#= 6.02× 10²³

6 0
3 years ago
A sample of liquid heptane (C7H16) weighing 11.5 g is reacted with 1.3 mol of oxygen gas. The heptane is burned completely (hept
Anna11 [10]

Answer:

a) 0.525 mol

b) 0.525 mol

c) 0.236 mol

Explanation:

The combustion reactions (partial and total) will be:

C₇H₁₆ + (15/2)O₂ → 7CO + 8H₂O

C₇H₁₆ + 11O₂ → 7CO₂ + 8H₂O

---------------------------------------------------

2C₇H₁₆ + (37/2)O₂ → 7CO + 7CO₂ + 16H₂O

It means that the reaction will form 50% of each gas.

a) 0.525 mol of CO

b) 0.525 mol of CO₂

c) The molar mass of heptane is: 7*12 g/mol of C + 16*1 g/mol of H = 100 g/mol

So, the number of moles is the mass divided by the molar mass:

n = 11.5/100 = 0.115 mol

For the stoichiometry:

2 mol of C₇H₁₆ -------------- (37/2) mol of O₂

0.115 mol of C₇H₁₆ --------- x

By a simple direct three rule:

2x = 2.1275

x = 1.064 mol of O₂

Which is the moles of oxygen that reacts, so are leftover:

1.3 - 1.064 = 0.236 mol of O₂

5 0
4 years ago
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