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lakkis [162]
3 years ago
14

How many significant figures should the following answer have? (23.34 cm)(90076 cm)(2.1223 cm) = cm

Chemistry
2 answers:
bezimeni [28]3 years ago
8 0

Answer : The number of significant figures are, four (4).

Explanation :

The rule apply for the multiplication and division is :

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

As we are given :

(23.34cm)\times (90076cm)\times (2.1223cm)

\Rightarrow 4462000cm^3

In this problem, the least number of significant figures is 4.

So, the correct answer is, 4.462\times 10^{6}cm^3

Hence, the number of significant figures are, four (4).

Yuri [45]3 years ago
4 0
4 - due to being a multiplication problem the answer goes to the least amount of Sig Figs given in a previous number.
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2 years ago
How many grams of water can be formed from the reaction of 8.76 grams of H2 with 10.5 liters of O2 (at STP) according to the bal
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16.9g of H₂O can be formed

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Based on the chemical reaction, 2 moles of H₂ react per mole of O₂. To anser this question we must find limiting reactant converting the mass and volume of each reactant to moles:

<em>Moles H₂ -Molar mass: 2.016g/mol-:</em>

8.76g * (1mol / 2.016g) = 4.345 moles

<em>Moles O₂:</em>

PV = nRT

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T = 273.15K at STP

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0.938 moles * (18.01g/mol) =

<h3>16.9g of H₂O can be formed</h3>
8 0
3 years ago
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