A liquid has a volume of 62.7 mL and a density of 2.59 g/mL. What is its mass? (show all work)

Answers

Answer 1

Answer:

162.4

Explanation:

The formula for mass is density* volume so 62.7 multiplied by 2.59 equals 162.393. then you round so your anwser would be 162.4

Related Questions

True or False: Particles that are moving faster have a higher temperature

Answers

Answer:

true

Explanation:

I'm not sure why cause I dont know how to explain but it's TRUE

Answer:

True

Explanation:

The particles moving faster in a substance the hotter it gets.

Which element contains one set of paired and three unpaired electrons in its fourth and outer main energy level?

Answers

Explanation:

Phosphorus (P) because of the 5 valence electrons total, 3 of them are in the 3p sublevel, and according to Hund's rule, they "single-fill" each orbital first.

Scientists are experimenting with pure samples of isotope X which is radioactive. The sample has a mass of 20. Grams. The half-life was measured to be 232 seconds. There is a second sample that weighs 80 grams. What is the half-life of the second sample

Answers

Answer:

Explanation:

Half life of radioactive materials do not depend upon the mass of the material . It only depends upon the nature of radioactive materials . The half life of 20 g is 232 seconds . That means 20 gram will be reduced to 10 gram in 232 seconds .

Half life of 80 gram is also 232 seconds . So , 80 gram will be reduced to 40 gram in 232 second .

The smallest form of matter that still retains the properties of an element

Answers

Answer:

atom

Explanation:

the atom is the smallest form.

Although there are smaller forms of matter (subatomic quarks, photons, electrons) an atom is the smallest that a form of matter could be that still possesses the properties of that element. An atom is classified into being a certain element based on how many protons it has.

SOMEONE PLEASE HELPPP

Answers

A is the correct awnser Beacuse it ether right kne

A chemist decomposes samples of several compounds; the masses of their constituent elements are listed. Calculate the empirical formula for each compound.

a. 1.245 g Ni, 5.381 g I,
b. 2.677 g Ba, 3.115 g Br,
c. 2.128 g Be, 7.557 g S, 15.107 g

Answers

Answer:

you can see the empirical formula at the pic

The empirical formula for compound (a) is NiI2, (b) is BaBr2 and (c) is BeS.

What is empirical formula?

Empirical formula of a compound is defined as the simplest whole number ratio of atoms present in a compound.

(a) 1.245 g Ni : 5.381 g I

Mole of Ni ; Mole of I = 1.245/59 : 5.381/127 = 0.02 : 0.04 = 1:2

So the formula is NiI2

(b) 2.677 g Ba : 3.115 g Br

Mole of Ba : Mole of Br = 2.677/137 : 3.115/60 = 0.019 : 0.038

= 0.02 : 0.04 = 1:2

So the formula is BaBr2

Mole of Be : Mole of S = 2.128/9 : 7.557/32 = 0.2 : 0.2 = 1:1

So the formula is BeS

Thus, empirical formula for compound (a) is NiI2, (b) is BaBr2 and (c) is BeS.

To learn more about empirical formula, refer to the link below:

https://brainly.com/question/11588623

#SPJ2

The pOH of an aqueous solution of 0.480 M trimethylamine (a weak base with the formula (CH3)3N) is .

Answers

Answer:

Explanation:

Kb of (CH₃)₃N is 7.4 x 10⁻⁵

initial concentration of (CH₃)₃N a is .48 M

(CH₃)₃N + H₂O = (CH₃)₃NH⁺ + OH⁻

a - x x x

x² / (a - x ) = Kb

x is far less than a so a - x can be replaced by a .

x² / a = Kb

x² = a x Kb = .48 x 7.4 x 10⁻⁵ = 3.55 x 10⁻⁵ = 35.5 x 10⁻⁶

x = 5.96 x 10⁻³

pOH = - log ( 5.96 x 10⁻³ )

= 3 - log 5.96

= 3 - .775

= 2.225

Question 11
4 pts
Using the formula 2H202 --> 2H2O + O2, if 7.30 moles of peroxide are
decomposed, how many moles of oxygen will be formed?

Answers

Answer:

3.65 mol O₂

Explanation:

Step 1: RxN

2H₂O₂ → 2H₂O + O₂

Step 2: Define

Given - 7.30 mol H₂O₂

Solve - x mol O₂

Step 3: Stoichiometry

[tex]7.30 \hspace{3} mol \hspace{3} H_2O_2(\frac{1 \hspace{3} mol \hspace{3} O_2}{2 \hspace{3} mol \hspace{3} H_2O_2} )[/tex] = 3.65 mol O₂

Which of the following is an Elementary compound?

A. CO2

B. N2

C. SO2

D. H2S

heeeeeeeeeelp please please please

Answers

Answer:

Explanation:

In my opinion the answer should be SO2

Answer:

a should be answer i think.

what’s the most abundant isotope of lawrencium

Answers

Answer:

266Lr

Thirteen isotopes of lawrencium are currently known; the most stable is 266Lr with a half-life of 11 hours, but the shorter-lived 260Lr (half-life 2.7 minutes) is most commonly used in chemistry because it can be produced on a larger scale.

Explanation:

hopefully that helps you

What can the chemical formula tell us about a compound?

Answers

Answer:

A chemical formula tells us the number of atoms of each element that is in a compound. It contains the symbols of the atoms for the elements present in the compound as well as how many there are for each element in the form of subscripts.

Hope this helps! please mark me brainliest!

God bless :)

When does carbon dioxide absorb the most heat energy?
during freezing
during deposition
during sublimation
during condensation

Answers

During sublimation

This has been posted on here before so you could’ve searched it lol.

Best of luck :))

Answer:

during sublimation

Explanation:

just took the test

What is the Kc equilibrium-constant expression for the following equilibrium? S8(s) + 24F2(g) 8SF6(g)

Answers

Answer:

[tex]Kc=\frac{[SF_6]^8}{[F_2]^2^4}[/tex]

Explanation:

Hello.

In this case, for the undergoing chemical reaction:

[tex]S_8(s) + 24F_2(g) \rightleftharpoons 8SF_6(g)[/tex]

We consider the law of mass action in order to write the equilibrium expression yet we do not include S8 as it is solid and make sure we power each gaseous species to its corresponding stoichiometric coeffient (24 for F2 and 8 for SF6), thus we obtain:

[tex]Kc=\frac{[SF_6]^8}{[F_2]^2^4}[/tex]

Best regards!

A sample of propane, C3H8, contains 13.8 moles of carbon atoms. How many total moles of atoms does the sample contain

Answers

Answer:

[tex]Total = 50.6\ moles[/tex]

Explanation:

Given

[tex]Propane = C_3H_8[/tex]

Represent Carbon with C and Hydrogen with H

[tex]C = 13.8[/tex]

Required

Determine the total moles

First, we need to represent propane as a ratio

[tex]C_3H_8[/tex] implies

[tex]C:H = 3:8[/tex]

So, we're to first solve for H when [tex]C = 13.8[/tex]

Substitute 13.8 for C

[tex]13.8 : H = 3 : 8[/tex]

Convert to fraction

[tex]\frac{13.8}{H} = \frac{3}{8}[/tex]

Cross Multiply

[tex]3 * H = 13.8 * 8[/tex]

[tex]3 H = 110.4[/tex]

Solve for H

[tex]H = 110.4/3[/tex]

[tex]H = 36.8[/tex]

So, when

[tex]C = 13.8[/tex]

[tex]H = 36.8[/tex]

[tex]Total = C + H[/tex]

[tex]Total = 13.8 + 36.8[/tex]

[tex]Total = 50.6\ moles[/tex]

Other Questions

Selected Information from Balance Sheets (As of Year End for Years 0 and 1) Year 0 Year 1 Cash 1,000 2,000 Accounts Receivables 1,000 5,000 Inventory 5,000 4,000 Property, Plant and Equipment (net) 12,000 11,000 Accounts Payable 5,000 4,000 Unearned Revenue 2,000 1,000 Bonds Payable 5,000 6,000 Common Stock 3,000 4,000 Retained Earnings 5,000 7,000 Income Statement (Year 1) Sales 20,000 Costs of Goods Sold (8,000) Wage Expense (4,000) Depreciation Expense (2,000) Loss from PP&E Sale (1,000) Net Income Before Tax 5,000 Tax Expense (2.000) Net Income 3.000 In the space provided, prepare the Operating section of the statement of cash flow for Year 1, using the indirect approach. When applying to college, it pays to ask for help and advice from people who have already gone. Which of the following people could be a useful resource during the college application process?A.) TeachersB.) PrincipalsC.) Guidance CounselorsD.) All of the above Because there are so many people in the United States, each state is divided into smaller sections, called districts. Each district elects a representative to voice the peoples opinions in Congress. This is a more efficient way for people to voice their opinions.Which principle of government is reflected by the statement above?a federalismb republicanismc separation of powersd limited government Read the excerpt from chapter 6 of Lizzie Bright and the Buckminster Boy. "May I ask why? Or is this something else that wasn't intended to embarrass the new minister?" "Because I wanted to know if it was true." "If what was true?" "If Lizzie was lying to me. If all she wanted to do was to get me on her side so she wouldn't have to leave the island." Reverend Buckminster sighed. "It doesn't matter if it's true. It matters what people think. It matters that my congregation can tell me what to think when my son goes out to visit a Negro girl on Malaga Island. It doesn't matter at all how she got you out there." "It matters to me," Turner whispered. "Speak up!" Based on the dialogue between Turner and his father, what conclusion can be drawn about Reverend Buckminster? He believes that his son cannot be trusted. He cares greatly about the opinions of others. He feels that Lizzie will be a bad influence. He dislikes everyone living on Malaga Island. when we observe an organism or environment what are we observing A. changes B. similarities C. colors Carlos or Jane usually (know , knows) The answers to most of the questions on the radio music quiz show Consider the following scenario:Cold Goose Metal Works Inc.s income statement reports data for its first year of operation. The firms CEO would like sales to increase by 25% next year.1. Cold Goose is able to achieve this level of increased sales, but its interest costs increase from 10% to 15% of earnings before interest and taxes (EBIT).2. The companys operating costs (excluding depreciation and amortization) remain at 70.00% of net sales, and its depreciation and amortization expenses remain constant from year to year.3. The companys tax rate remains constant at 40% of its pre-tax income or earnings before taxes (EBT).4. In Year 2, Cold Goose expects to pay $300,000 and $2,306,475 of preferred and common stock dividends, respectively.Complete the Year 2 income statement data for Cold Goose, then answer the questions that follow. Round each dollar value to the nearest whole dollar.Cold Goose Metal Works Inc. Income Statement for Year Ending December 31 Year 1 $30,000,000 21,000,000 1,200,000 $7,800,000$ Year 2 (Forecasted) Net sales Less: Operating costs, except depreciation and amortization Less: Depreciation and amortization expenses Operating income (or EBIT) Less: Interest expense Pre-tax income (or EBT) Less: Taxes (40%) Earnings after taxes Less: Preferred stock dividends Earnings available to common shareholders Less: Common stock dividends Contribution to retained earnings 1,200,000 780,000 $7,020,000 2,808,000 $4,212,000s 300,000 $3,912,000 1,895,400 $1,605,525 $2,519,025 Given the results of the previous income statement calculations, complete the following statements: In Year 2, if Cold Goose has 25,000 shares of preferred stock issued and outstanding, then each preferred share should expect to receive____________ in annual dividends If Cold Goose has 200,000 shares of common stock issued and outstanding, then the firm's earnings per share (EPS) is expected to change from __________ in Year 1 to in ________ Year 2 Cold Goose's before interest, taxes, depreciation and amortization (EBITDA) value changed from _______ in Year 1 to in ______ Year 2 It is __________ to say that Cold Goose's net inflows and outflows of cash at the end of Years 1 and 2 are equal to the company's annual contribution to retained earnings, $1,605,525 and $2,519,025, respectively. This is because of the items reported in the income statement involve payments and receipts of cash O O Ms o menos, y usted? 4. (01.02, 01.03 LC) Read and select the best expression to complete this dialogue. A boss meets up with one of her employees: -Buenos das. seorita? -Buenos das. Estoy muy bien, gracias. Jy usted? (2 points) O Cmo ests t Mucho gusto Estoy mal Cmo est usted 501 2 MON In round 1 of a game s student loses 5 points loses 3 points gains 17 points and loses 7 points whats the student score at the end of round 1 What is a good app to learn Spanish??? The surface temperature ranges from -2C to 31C. Find the difference between the max and min temperatures. what does freedom mean to you? I will mark brainlist.write me two paragraphs answer the question. does the usa need more immigrants? what are all the fractions that are equivalent to 1/7 Please answer quickly!!!!!Which property of argon makes it useful for potassium-argon dating?It decays into potassium.It is an unstable element.It remains trapped in rock.It is useful only for dating newer rock. What is the reason behind increasing status of earthworms? C) Explain the difference in how the plant and the woman get glucose molecules to use for energy Alright then! First question! A graph has height (inches) on the x-axis and arm span (inches) on the y-axis. Points are at (30, 27), (45, 45), (53, 50), (60, 60), (67, 70), and (73, 72).Identify if there is a relationship between the variables.(A) No, there is no relationship because the points are all up and down.(B) Yes, the relationship displayed shows arm span increasing as height increases.(C) Yes, the relationship displayed shows arm span decreasing as height increases. Brainliest to the correct answer ( Evaluate 7 - 5p + 3q when p = 1 and a = 7.) Hope this is not too much..But if someone could read the short story "After 20 Years," which you can find a pdf of it when you google it, I would be forever grateful..And then do a plot map of the exposition, rising action, climax, falling action and resolution.I will give brainiest.