Question

Consider the balanced equation:

5A + 8B ↔ 8C + 4D

How many moles of B are required to produce 4 moles of D?

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Consider the new balanced equation:

2A + 1B ↔ 7C + 1D

How many moles of D are produced when 7 moles of C are
produced?

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Consider the balanced equation:

3A + 3B ↔ 4C + 2D

How many moles of C can be produced from 6 moles of B?

Help: Using balanced equations

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Consider the new balanced equation:

3A + 2B ↔ 7C + 2D

How many moles of A are required to react with 7 moles of B?

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Consider the balanced equation:

3A + 2B ↔ 9C + 3D

How many moles of C can be produced from 0.72 moles of B?

Help: Using balanced equations (review)

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Consider the new balanced equation:

4A + 4B ↔ 6C + 3D

How many moles of A are required to react with 0.69 moles of B?

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Consider the balanced equation:

2A + 5B ↔ 3C + D

8 mol A are mixed with 18 mol B at an elevated temperature. After 6
mol of A have reacted, how much B is left?

Help: Balanced equation yield

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Consider the balanced equation:

2A + 5B ↔ 3C + D

0.39 mol A are mixed with 1.12 mol B at an elevated temperature.
After 0.25 mol of A are left, how much B is left? Hint given in
feedback.

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Consider the balanced equation:

2A + 5B ↔ 3C + D

0.39 mol A are mixed with 1.07 mol B at an elevated temperature.
After 0.22 mol of A are left, how much C is produced?

Answer #1

1)

5A + 8B ↔ 8C + 4D

How many moles of B are required to produce 4 moles of D?

ratio of B:D --> 8:4 that is, we need 8 mol of B to produce 4 mol of D

2)

2A + 1B ↔ 7C + 1D

How many moles of D are produced when 7 moles of C are
produced?

ratio is 7C:1D; therefore, w eneed 1 mol of D to produce 7 of C

3)

3A + 3B ↔ 4C + 2D

How many moles of C can be produced from 6 moles of B?

ratio is 3B:4C

then

4/3C: B

if we want 6 mol of C we need 1.5*3 = 4.5 mol of B

4)

3A + 2B ↔ 7C + 2D

How many moles of A are required to react with 7 moles of B?

ratio is 3:2

then 1.5 mol of A are needed for 1 mol fo B

therefore

1.5*7 = 10.5 mol of A

NOTE: Consider posting multiple questions in multiple set of Q&A. We ar enot allowed to answer to multiple questions in a single set of Q&A.

What clearly dominates the school-level textbooks in the Arabic
language, as per evidence stated in a working paper regarding
Jordan?
Select one:
a. Female centered words and images.
b. Male centered words and images
c. Words and images that are not gender based
d. None of the above
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Some nations are much richer than others, because the people
from those nations are more intelligent than those from...

The positive square root of variance is called:
Select one:
A. z-score
B. mean
C. Standard Deviation
D. dispersion
QUESTION 12
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A cell phone company found that 75% of all customers want text
messaging on their phones, 80% want photo capability, and 65% want
both. What is the probability that a customer will want at least
one of them?
Select one:
A. 0.90
B. 0.81
C. 0.87
D. 0.60...

Based on this balanced equation:
2LiOH + H2S → Li2S + 2H2O
How many moles of Li2S will be produced from 116.07 g of LiOH and
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Consider the balanced chemical equation shown below:
2 NH3 + 5 F2 ---> N2F4 + 6 HF
1. How many moles of N2F4 form per mole of reaction? (Answer is
in mol / mol reaction)
2. If 0.022 moles of HF form, how
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.5 was my answer for 1, and .0256
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What is the effect of
this entry on the accounting equation?
Cost of Goods Sold
$6,000
Inventory
$6,000
Select one:
a. Assets and Stockholders' Equity will decrease
b. Assets will decrease and Stockholders' Equity will
increase
c. Assets and Stockholders' Equity will increase
d. None of the above
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Cars Unlimited buys
and sells used cars. Last week they sold a set of office furniture
that cost $2000...

Consider the following balanced equation:
2H3PO4(aq) + 3Ca(OH)2(s) → 6H2O(l) +
Ca3(PO4)2(s)
If 13.6 moles of H3PO4(aq) and 35.3 moles of
Ca(OH)2(s) are allowed to react, and the percent yield is
84.5%, how many moles of H2O(l) will actually be
produced?
60.5 moles
87.2 moles
95.2 moles
76.7 moles
34.5 moles

Consider the balanced equation below C3H8O + 502 = 3CO2 + 4H2O
A) How many grams of oxygen are needed to react with 26.4 mL of
C3H8O (d= 786 Kg/m^3) B) How many grams of water and carbon dioxide
will be formed if 26.4 mL of C3H80 are reacted with 1.20 moles of
oxygen? How many grams of the reagent in excess are left? C)
Assuming an 85% yeild, calculate the mass of water and the mass
carbon dioxide formed

please answer these questions
1-Consider the following balanced equation:
2 Fe(s) + 3 Cl2(g) → 2
FeCl3(s)
How many moles of iron(III) chloride are obtained when 7.67
moles of chlorine gas react with excess solid iron? Assume the
reaction is 100% efficient.
2- What mass of hydrochloric acid must have reacted with
magnesium if 9.56 grams of hydrogen were produced? Include units
with your answer.
The UNBALANCED equation is provided:
Mg(s) + HCl(aq) → H2(g) +
MgCl2(aq)
3- What volume...

How many moles of oxygen, O, are there in 479.07 g of iron (III)
oxide, Fe2O3? Molar mass of
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9.00 MOL
3.00 MOL
1.00 MOL
0.333 MOL
From the Balanced Chemical Equation: 4 Al + 3O2
--> 2 Al2O3
Apply Stoichiometry to determine the yield (grams) of
Al2O3 produced if you start with 108 grams of
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and oxygen is present in excess. The formula weight...

Probability & Statistics Sec-3 with Dr. Kishore Kumar P. K. for
Sem II 2020
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EN MATH4130-3 KK 2020-2
OFA - ONLINE FINAL ASSIGNMENT
Final Online Assignment Questions
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A1.1. The following are the points to draw a less than ogive curve
from a frequency distribution.
(7, 4), (14, 12), (21, 24), (28, 39), (35, 49), (42, 56), (49, 61),
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a) ...

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