All categories

2 years ago

What is the volume of 220 grams of an object with a density of 55g/cm square

1 answer:

4 0

I'm assuming that you meant 55 g/cm^3. Density= $\frac{Mass}{Volume}$ . This is the definition of density. If you rearrange this equation by multiplying each side of the equation by the volume, you get: (Density)(Volume)=Mass. Divide each side by the density to get: Volume=Mass/Density. Now just plug everything in:
V=220 (grams)/55 (grams/cm^3)=4 cm^3

You might be interested in

A certain orbital of the hydrogen atom has n = 4 and l = 2 what are the possible values of ml for this orbital?

Nadya [2.5K]

The ml is also called as the magnetic quantum number. The value of ml can range from –l to +l including zero. Hence all of the possible values for ml given that l = 2 are:

-2, -1, 0, + 1, + 2

3 0

2 years ago

3. Your company makes 1000 boxes of 500 g baking soda per day.

inessss [21]

500,000 g of baking soda is present in 1000 boxes of 500 g baking soda boxes.

Answer:

Option C.

Explanation:

As 500 g of baking soda is taken in each box of that company. The total weight of baking soda in all the boxes can be determined by adding the weights of each box. This is possible only when the number of boxes is less. But if the number of boxes are large, then we can determine the total weight of baking soda by multiplying the number of boxes with the weight in each box.

So in this case, 1000 boxes are present and in that 500 g of baking soda are present in each box.

So total grams of baking soda will be 1000 * 500 = 5,00,000 g.

Thus, 500,000 g of baking soda is present in 1000 boxes of 500 g baking soda boxes.

5 0

2 years ago

The ph of a 0.55 m aqueous solution of hypobromous acid, hbro, at 25.0°c is 4.48. what is the value of ka for hbro?

elena-14-01-66 [18.8K]

The solution would be like this for this specific problem:

Given:

pH of a 0.55 M hypobromous acid (HBrO) at 25.0 °C = 4.48

[H+] = 10^-4.48 = 3.31 x 10^-5 M = [BrO-] 

Ka = (3.31 x 10^-5)^2 / 0.55 = 2 x 10^-9

To add, Hypobromous Acid does not require acid adjustment, which is necessary for chlorine-based product and is stable and effective in pH ranges of 5-9.

Hypobromous Acid combines with organic compounds to form a bromamine. Chlorine also combines with the same organic compounds to form a chloramine. It is also one of the least expensive intervention antimicrobial compounds available.

8 0

2 years ago

Read 2 more answers

A sample of gaseous arsine (AsH3) in a 460 mL flask at 332 Torr and 223 K, is heated to 437 K, at which temperature arsine decom

Taya2010 [7]

Answer:

28/95 = 29.,5 % of Arsine decomposed

Explanation:A sample of gaseous arsine (AsH3) in a 460 mL flask at 332 Torr and 223 K, is heated to 437 K, at which temperature arsine decom- poses to solid arsenic and hydrogen gas. The flask is then cooled to 273 K, at which tem- perature the pressure in the flask is 488 Torr. What percentage of arsine molecules have de- composed?

Answer in units of %.

initial pressure 332 Torr initial volume 0.46 L initial temperature 223K

final pressure 488 Torr final volume 0.46 L final 273 K

Torr is 1/760 atm 332 torr = 0.437 atm 488 Torr =0.642 atm

PV = nRT so n=RT/PV

INITIAL n= 0.082 X 223/(0.437)(0.46) = 91 moles

final n= 0.082 X 273 / (.437)(488) = 105 moles

2AsH3----------> 2As + 3H2

x moles of Arsine decomposed to make 1.5 moles of H2

the final number of moles was

(91 -X)+ 1.5 X = 105 moles

91 + 0.5 X = 105

0.5 X = 14

X =28

CHECK

if 28 moles of Arsine , then the container would have

91 --28 + 1.5(28) = 91 +14 =105 check

so 28/95 = 29.,5 % of Arsine decomposed

Your answer

(quit)

polyalchemVirtuoso

Answer:

Explanation:

ADD YOUR ANSWER

Ask maryhobbs about this question...

New questions in Chemistry

in what area of the united states do the fewest people live

Read each step. Then put the steps in order from first to last. Write 1 for the first step, 2 for the second step and so on. 1. Fossils fuels are burn…

When unbalanced forces act on an object that is in motion, the object can: A. change speed, direction, or both. B. only change direction. C. only s…

What is the missing letter in H,J,K,L,M,N,O,P.? And what is the opposite of HATE.? And what is the opposite of ME.? Think about it -,-

what type of reaction is Fe(NO3)3 + 3LiOH = Fe(OH)3 + 3LiNO3

Please answer this quickly. the answers that you find online are not correct. I will mark brainliest if you get it right. NO SPAM!!!!For the reaction …

cuantos gramos de soluto son necesario para preparar 50 ml de Ca(NO3)2 al 4% (w/v)

Calculate the moles of O in 0.182 mole C6H14O. Calculate the number of H atoms in 0.182 mole C6H14O. Calculate the number of C atoms in 0.182 mole C…

When a sulfur atom and an oxygen atom bond to produce substance C, electrons are? a. delocalised b. shared c. transferred

What is oxidation state?

Ask

4 0

2 years ago

Please Help!

Whitepunk [10]

We can use two equations for this problem.

t1/2 = ln 2 / λ = 0.693 / λ
Where t1/2 is the half-life of the element and λ is decay constant.

20 days = 0.693 / λ
λ = 0.693 / 20 days (1)

Nt = Nο eΛ(-λt) (2)

Where Nt is atoms at t time, No is the initial amount of substance, λ is decay constant and t is the time taken.
t = 40 days

No = 200 g

From (1) and (2),
Nt = 200 g eΛ(-(0.693 / 20 days) 40 days)
Nt = 50.01 g

Hence, 50.01 grams of isotope will remain after 40 days.

3 0

2 years ago