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Rufina [12.5K]
3 years ago
10

If the following reaction is carried out with 50.0g of Na2S and 35.0g of AgNO3, which is the limiting reactant?

Chemistry
1 answer:
topjm [15]3 years ago
8 0
Yes and Na2s is it cause why not
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When heat is applied to 80 grams of CaCO3, it yields 39 grams of CO2. Determine
galben [10]

<u>Answer:</u> The percentage yield of CO_2 is 90.26%.

<u>Explanation:</u>

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}} ......(1)

Given mass of CaCO_3 = 80 g

Molar mass of CaCO_3 = 100 g/mol

Plugging values in equation 1:

\text{Moles of }CaCO_3=\frac{80g}{100g/mol}=0.8 mol

For the given chemical equation:

CaCO_3\rightarow CaO+CO_2

By the stoichiometry of the reaction:

If 1 mole of CaCO_3 produces 1 mole of CO_2

So, 0.8 moles of CaCO_3 will produce = \frac{1}{1}\times 0.8=0.8mol of CO_2

Molar mass of CO_2 = 44 g/mol

Plugging values in equation 1:

\text{Mass of }CO_2=(0.8mol\times 44g/mol)=35.2g

The percent yield of a reaction is calculated by using an equation:

\% \text{yield}=\frac{\text{Actual value}}{\text{Theoretical value}}\times 100 ......(2)

Given values:

Actual value of CO_2 = 35.2 g

Theoretical value of H_2CO_3 = 39 g

Plugging values in equation 2:

\% \text{yield of }CO_2=\frac{35.2g}{39g}\times 100\\\\\% \text{yield of }CO_2=90.26\%

Hence, the percentage yield of CO_2 is 90.26%.

8 0
3 years ago
Reactions in Our World Lab Report
Andreas93 [3]

Answer:

I predict the reaction between __Fe___ and __CuSO___ will yield a _____single replacement_____ reaction/s.

I predict the reaction between ___ Pb(NO3)2__ and __ Kl___ will yield a _____ double replacement_____ reaction/s.

I predict the reaction between ___Mg__ and __HCI___ will yield a ____Single replacement______ reaction/s.

I predict the reaction between __ electrolysis___ and _____ will yield a ____ decomposition______ reaction/s.

I predict the reaction between __ Mg___ and __ O2___ will yield a ____ synthesis and inorganic combustion______ reaction/s.

Explanation:

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3 years ago
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PLEASE HELP ILL MARK BRAINLEST
ziro4ka [17]

Answer:

Answer:

0.35

0.91

1.26

1.57

Explanation:

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3 years ago
Consider the reaction below.
anygoal [31]

Answer:

B.

Explanation:

Oxidation - losing electrons. It is Zn, and it is losing 2 electrons.

Zn^{0} --> Zn^{2+} +2e^{-}

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4 years ago
A scientific argument will be considered invalid if the evidence supporting that argument is based on ___. A. inconsistent data
igomit [66]
Answer: A. inconsistent data

Indeed, using inconsistent data in a research or more to support an argument will only jeopardize its validity. A scientific argument supported by inconsistent data will be considered invalid and unreliable. That's why there are several scientific ways on data gathering. 

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