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ArbitrLikvidat [17]
3 years ago
6

A gas exerts a pressure of 1.35 atm. What is the equivalent measures in mmHg?

Chemistry
1 answer:
Pie3 years ago
8 0
1.35atm(760mmHg/1atm)=1026mmHg
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Andrei [34K]

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B

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In a 71.4 g sample of nahco 3 3 ​ , how many grams of sodium are present?
sweet [91]

There are 19.5 g Na in 71.4 g NaHCO₃

Calculate the <em>molecular mass of NaHCO₃</em>.

1 Na = 1 × 22.99 u = 22.99   u

1 H   = 1 × 1.008 u =    1.008 u

1 C   = 1 × 12.01  u =  12.01    u

3 O = 3 × 16.00 u =  <u>48.00  u </u>

               TOTAL =  84.008 u

So, there are 22.99 g of Na in 84.008 g NaHCO₃.

∴ Mass of Na = 71.4 g NaHCO₃ × (22.99 g Na/84.008 g NaHCO₃) = 19.5 g Na

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The IUPAC says that elements have to be named after one of five things: a scientist, a place, a mineral or substance, a descriptor of the element, or a mythological reference. Of the new elements, three are named after places and one is named after a person No-one has yet named an element after themselves but many elements are named in tribute to important scientists
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Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock.
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Explanation:

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Based on the information provided in the graph, we can see that as the independent variable increases,
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Well I have no clue on what your class is doing but to me, it looks like B. the dependent variable also increases

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