For example: The solid is not completely submerged in the water. Will this technique error increase, decrease, or have no effect on the reported density of the solid?

Answers

Answer 1

Answer: Density is the amount of matter in an object so having it any way submerged in water will not affect the solid's density

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Is baking soda a fine powder or is it coarse

Answers

Baking soda is a fine powder because when you touch it the baking soda is very soft

What information is necessary to determine the atomic mass of the element chlorine?(1) the atomic mass of each artificially produced isotope of chlorine, only
(2) the relative abundance of each naturally occurring isotope of chlorine, only
(3) the atomic mass and the relative abundance of each naturally occurring isotope of chlorine
(4) the atomic mass and the relative abundance of each naturally occurring and artificially produced isotope of chlorine

Answers

Answer is: (3) the atomic mass and the relative abundance of each naturally occurring isotope of chlorine.

m(³⁵Cl) = 34.97 amu; the average atomic mass of chlorine-35.

m(³⁷Cl) = 36.97 amu; the average atomic massof chlorine-37.

ω(³⁵Cl) = 75.76% ÷ 100% = 0.7576; fractional abudance of chlorine-35.

ω(³⁷Cl) = 24.24% ÷ 100% = 0.2424; fractional abudance of chlorine-37.

m(Cl) = m(³⁵Cl) · ω(³⁵Cl) + m(³⁷Cl) · ω(³⁷Cl).

m(Cl) = 34.97 amu · 0.7576 + 36.97 amu · 0.2424.

m(Cl) = 35.4548 amu; average atomic mass of chlorine.

Final answer:

The atomic mass of chlorine is determined by both the atomic mass and the relative abundance of each naturally occurring isotope of chlorine. It's based on an average of the masses of the isotopes according to their relative abundance.

Explanation:

To determine the atomic mass of the element chlorine, option (3), both the atomic mass and the relative abundance of each naturally occurring isotope of chlorine is required. The atomic mass of chlorine is not just the mass of one particular atom, or isotope; instead, it's an average of the masses for all the isotopes according to their relative abundance. For instance, Chlorine has two isotopes Chlorine-35 and Chlorine-37. If the relative abundance of Chlorine-35 is 75% and that of Chlorine-37 is 25%, the atomic mass is calculated by the formula [(0.75 x 35) + (0.25 x 37)].

Learn more about Atomic Mass here:

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The sum of pH and pOH for any aqueous solution equals

Answers

pH is a notion that expresses the concentration of hydrogen in a solution while pOH expresses the concentration of hydroxide in a solution. The sum of pH and pOH in a solution is 14.

Answer: 14

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

$pH=-\log [H^+]$

$pOH=-\log[OH^-]$

$pH+pOH=14$

Thus the sum of pH and pOH is 14.

Which elements can form acidic compounds? Check all that apply. sulfur rubidium arsenic selenium silicon xenon antimony

Answers

The elements that can form acidic compounds are; sulfur, arsenic, selenium, antimony, silicon.

Acidic compounds are formed by nonmetals. Metallic elements form basic compounds. This means that rubidium does not form acidic compounds since it is a metal.

Also, xenon does not form compounds because it is a noble gas. Noble gases do not react with other elements to form compounds.

However; sulfur, arsenic, selenium, antimony, silicon are nonmetals and they form acidic compounds.

Learn more: brainly.com/question/14072179

The correct answer is Sulfur, Arsenic, selenium, silicon, and antimony.

At what temperature would a gas have a volume of 13.5 L at a pressure of 0.723 atm, if it had a volume of 17.8 L at a pressure of 0.612 atm and a temperature of 28 C

Answers

Answer : The initial temperature of gas would be, 269.7 K

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$(P_1V_1)/(T_1)=(P_2V_2)/(T_2)$

where,

$P_1$ = initial pressure of gas = 0.723 atm

$P_2$ = final pressure of gas = 0.612 atm

$V_1$ = initial volume of gas = 13.5 L

$V_2$ = final volume of gas = 17.8 L

$T_1$ = initial temperature of gas = ?

$T_2$ = final temperature of gas = $28^oC=273+28=301K$

Now put all the given values in the above equation, we get:

$(0.723atm* 13.5L)/(T_1)=(0.612atm* 17.8L)/(301K)$

$T_1=269.7K$

Thus, the initial temperature of gas would be, 269.7 K

Central American countries are important agricultural producers. Each year, the United States imports about five billion dollars’ worth of __________.a. bananas
b. cacao
c. mangoes
d. coffee

Answers

a. bananas

Central American countries are important agricultural producers. Each year, the United States imports about five billion dollars’ worth of bananas.

NOT:

b. cacao
c. mangoes
d. coffee

correct answer is D COFFEE

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what is the concentration, in percent (v/v), of a solution containing 50 mL of diethyl ether (C4H10O) in 2.5 L of solution?