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Leni [432]
3 years ago
6

Electromagnetic radiation emitted from a hot object reaches it's peak at a wavelength of 8.5 x 10-7 m. What is the frequency of

this radiation
Chemistry
2 answers:
Elina [12.6K]3 years ago
5 0
The frequency would be 18
liubo4ka [24]3 years ago
3 0

Answer:

the frequency is 18

Explanation:

please mark me as the branlest hope it helps please

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Help me balance the equation
gladu [14]

Answer:

blank 1 ----> 1

blank 2 -----> 1

blank 3 ------> 3

Explanation:

easy one!

3 0
3 years ago
Hydrogengasand oxygengas react to form water vapor. Suppose you have of and of in a reactor. Calculate the largest amount of tha
bezimeni [28]

The question is incomplete. The complete question is :

Hydrogen (H_2) gas and oxygen (O_2) gas react to form water vapor (H_2O). Suppose you have 11.0 mol of H_2 and 13.0 mol of O_2 in a reactor. Calculate the largest amount of H_2O that could be produced. Round your answer to the nearest 0.1 mol .

Solution :

The balanced reaction for reaction is :

$2H_2(g) \ \ \ \ + \ \ \ \  \ O_2(g)\ \ \  \rightarrow \ \ \ \ 2H_2O(g)$

11.0                      13.0

11/2                       13/1     (dividing by the co-efficient)

6.5 mol               13 mol    (minimum is limiting reagent as it is completely consumed during the reaction)

Therefore, H_2 is limiting reagent. It's stoichiometry decides the product formation amount from equation above it is clear that number of moles for H_2O will be produced = number of moles of H_2

                                     = 11.0 mol

3 0
3 years ago
How many moles are in 16.94 g of H2O?
Nitella [24]

Answer:

0.9401 mol H₂O

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

16.94 g H₂O

<u>Step 2: Identify Conversions</u>

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol

<u>Step 3: Convert</u>

<u />16.94 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O} ) = 0.940067 mol H₂O

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig fig rules and round.</em>

0.940067 mol H₂O ≈ 0.9401 mol H₂O

4 0
3 years ago
When iron(II) chloride reacts with silver nitrate, iron(II) nitrate and silver chloride are produced. The balanced equation for
kati45 [8]

<u>Answer:</u> The moles of silver nitrate reacted is 5.72 moles, moles of iron (II) nitrate produced is 2.86 moles and moles of silver chloride produced is 5.72 moles

<u>Explanation:</u>

We are given:

Moles of iron (II) chloride = 2.86 moles

For the given chemical equation:

FeCl_2(aq.)+2AgNO_3(aq.)\rightarrow Fe(NO_3)_2(aq.)+2AgCl(s)

  • <u>For silver nitrate:</u>

By Stoichiometry of the reaction:

1 mole of iron (II) chloride reacts with 2 moles of silver nitrate.

So, 2.86 moles of iron (II) chloride will react with = \frac{2}{1}\times 2.86=5.72mol of silver nitrate

Moles of silver nitrate reacted = 5.72 moles

  • <u>For iron (II) nitrate:</u>

By Stoichiometry of the reaction:

1 mole of iron (II) chloride produces 1 mole of iron (II) nitrate

So, 2.86 moles of iron (II) chloride will produce = \frac{1}{1}\times 2.86=2.86mol of iron (II) nitrate

Moles of iron (II) nitrate produced = 2.86 moles

  • <u>For silver chloride:</u>

By Stoichiometry of the reaction:

1 mole of iron (II) chloride produces 2 moles of silver chloride

So, 2.86 moles of iron (II) chloride will produce = \frac{2}{1}\times 2.86=5.72mol of silver chloride

Moles of silver chloride produced = 5.72 moles

Hence, the moles of silver nitrate reacted is 5.72 moles, moles of iron (II) nitrate produced is 2.86 moles and moles of silver chloride produced is 5.72 moles

7 0
4 years ago
Like DNA, RNA contains four nitrogenous bases.
lyudmila [28]

Answer:

 Uracil,   Ribose

Explanation:

The Nitrogenous base found in RNA that is not found in DNA is called Uracil.

While the five-carbon sugar in RNA is called Ribose.

3 0
3 years ago
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