PLZ HELLLLPPPP

When the experiment was carried out, the temperature was 22 oC and atmospheric pressure was 1.007 atm. Using the Ideal Gas Law a

lesantik [10]

Answer:

number of moles of $H_2$ =4.16mol

Explanation:

experiment data:

temperature= $22^{\circ}C$ =273+22 k=295k

pressure=1.007 atm

volume is missing so assuming volume-=100L

using ideal law relationship

ideal gas means gas which occupies negligible space and there is no interaction between the molecules of gases.

PV=nRT

put all the experimental data, we get

n=4.15 mol

number of moles of $H_2$ =4.16mol

4 0

3 years ago

ILL GIVE THE BRAINLIST JUST HELP ME

klemol [59]

Answer:

they are carried away and deposited wherever.

there are many wanys sediments can be carried so common examples would be... by wind, water, or by animals.

Explanation:

7 0

3 years ago

Read 2 more answers

Which of the following is not a part of the ideas john dalton proposed in his model

NNADVOKAT [17]

The following which is not a part of Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

<h3>What is Dalton atomic theory?</h3>

Dalton has proposed his theory in three parts and each part stated that

The first portion of his theory asserts that all stuff is made up of indivisible atoms.

According to the second section of the theory, all atoms of a given element have the same mass and characteristics.

Compounds, according to the third section, are combinations of two or more different types of atoms.

Dalton has given three laws

Law of conservation of mass
Law of definite proportion
Law of multiple proportion

Thus, the following which is not a part of Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

To learn more about Dalton atomic theory, refer to the link below:

brainly.com/question/11855975

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Your question is incomplete, but your complete question was

which of the following is not a part of the ideas john dalton proposed in his model

A. All matter is composed of indivisible atoms.

B. The properties of atoms of the same element can be different.

C. Compounds form when atoms combine in whole number ratios.

D. An atom can neither be created nor destroyed.

4 0

1 year ago

Why do atoms get smaller as you move across a period

sweet [91]

Neutral atoms get smaller as you move across the periodic table from (left to right) because the atom increases in electrons. The more electrons, the bigger the effective nuclear charge (electron and proton attraction) and so basically the atom shrinks.

6 0

3 years ago

Part A

PSYCHO15rus [73]

Answer:

$\boxed {\boxed {\sf 63.0 \%}}$

Explanation:

The percent yield is the ratio of the actual yield to the theoretical yield.

$percent \ yield = \frac{actual \ yield}{theoretical \ yield} * 100$

The actual yield is the amount obtained from performing a chemical reaction. For this problem, it is 14.8 grams.
The theoretical yield is the potential amount from performing a chemical reaction at maximum performance. For this problem, it is 23.5 grams.

We can substitute the known values into the formula.

$percent \ yield= \frac{ 14.8 \ g}{23.5 \ g}*100$

Divide.

$percent \ yield = 0.629787234043*100$

Multiply.

$percent \ yield = 62.9787234043$

The original measurements for the theoretical and actual yields have 3 significant figures, so our answer must have the same. For the number we calculated, that is the tenths place.

The 7 to the right, in the hundredths place, tells us to round the 9 up to a 0. Since we rounded up to 0, we have to move to the next place to the left and round the 2 up to a 3.

$percent \ yield \approx 63.0$

The percent yield is approximately <u>63.0 percent.</u>

6 0

3 years ago