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NISA [10]
3 years ago
7

The atomic mass of an imaginary element X is 30.7377 amu. Element X has three isotopes. One isotope has an isotopic mass of 30.5

734 amu and an abundance of 85%. Another isotope has an isotopic mass of 31.2892 and an abundance of 10%. The last isotope has an abundance of 5%. What is the isotopic mass of the last isotope? Round your answer to the nearest hundredth.
Chemistry
1 answer:
ryzh [129]3 years ago
8 0

Answer:

wuhwwisbsjsbsisjsbsjsjiw

Explanation:

bhajwjbw wjsjw bwuebe e

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(1) Ocean to Continent
(2)Continent to Continent
(3)Ocean to Ocean
are the three sub types of convergent plate boundaries.
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You are given a solution of hcooh (formic acid) with an approximate concentration of 0.20 m and you will titrate this with a 0.1
balu736 [363]
V(NaOH)*M(NaOH)=V(HCOOH)M(HCOOH)
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What does a graduated cylinder use units of
Anni [7]

Explanation:

answer: uuuuh so sorry if i get wrong so basically  they will practice measuring different liquids. They will use a container called a graduated cylinder to measure liquids. Graduated cylinders have numbers on the side that help you determine the volume. Volume is measured in units called liters or fractions of liters called milliliters (ml).

(defently not copy and pasted)

6 0
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What is the the top of the wave called
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5 0
3 years ago
A chemical reaction that is expected to form 325.0 gof product only forms 123.8 g of product. What is the percent yield of this
Tasya [4]

Answer:

\boxed {\boxed {\sf A. \ 38.1 \%}}

Explanation:

Percent yield is the ratio of the amount actually produced to how much could theoretically be produced. It is found using this formula:

\% \ yield = \frac{actual \ yield}{theoretical \ yield} *100

For this reaction, the theoretical or expected yield is 325.0 grams. The actual yield is 123.8 grams.

\% \ yield = \frac{ 123.8 \ g }{325.0 \ g }*100

Divide.

\% \ yield = 0.380923077 *100

\% \ yield = 38.0923077

Round to the nearest hundredth. The 9 in the hundredth place tells us to round the 0 to a 1 .

\% \ yield \approx 38.1

The percent yield is about <u>38.1%</u>

5 0
3 years ago
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