HELP ASAP!
How much NaBr solute is saturated at 70 degrees?
A.
110
B.
B.120
C.
130
D.
140
Answers
120l NaBr solute is saturated at 70 degrees. In this case option b is correct when saturated at 70 degrees.
NaBr is the chemical formula for sodium bromide. It is an inorganic compound composed of sodium (Na) and bromine (Br). Sodium bromide is a white, crystalline solid that is highly soluble in water.
In terms of its properties and uses, sodium bromide has various applications. It is commonly used in the pharmaceutical industry as a sedative and anticonvulsant drug. Sodium bromide is also used in the oil and gas industry as a completion fluid in well drilling and workover operations. Additionally, it finds applications in photography as a component of some film developers.
As a salt, sodium bromide dissociates into sodium ions (Na+) and bromide ions (Br-) when dissolved in water. These ions can participate in various chemical reactions and have different effects depending on the specific application or purpose.
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Related Questions
Make r the subject - picture underneath
Answers
Answer:
The answer is r = 6a / (5m² - 1).
Step-by-step explanation:
The steps are :
[tex]m = \sqrt{ \frac{6a + r}{5r} } [/tex]
[tex] {m}^{2} = \frac{6a + r}{5r} [/tex]
[tex]5r {m}^{2} = 6a + r[/tex]
[tex]5r {m}^{2} - r = 6a[/tex]
[tex]r(5 {m}^{2} - 1) = 6a[/tex]
[tex]r = \frac{6a}{5 {m}^{2} - 1 } [/tex]
Answer:
r = [tex]\frac{6a}{5m^2-1}[/tex]
Step-by-step explanation:
Given
m = [tex]\sqrt{\frac{6a+r}{5r} }[/tex] ( square both sides )
m² = [tex]\frac{6a+r}{5r}[/tex] ( multiply both sides by 5r )
5rm² = 6a + r ( subtract r from both sides )
5rm² - r = 6a ← factor out r from each term on the left side
r(5m² - 1) = 6a ← divide both sides by (5m² - 1)
r = [tex]\frac{6a}{5m^2-1}[/tex]
In Ms. Perron’s class, 25% of the class are boys. There are 6 boys in the class. What is the total number of students in Ms. Perron’s class?
Answers
Answer:
24
Step-by-step explanation:
25%= 1/4 of the class
1/4 *x=6
x=24
6 multiplied by 100 = 600
600 divided by 25 = 24
Ms. Perron has 24 kids in her class.
Explanation: 25% of 24 is 6.
4. An extension ladder is leaned up against a building to reach a window that is 16.1 feet
from the ground. The base of the ladder is 10 ft from the building.
a How long is the ladder if it is fully extended?
b. What is the angle that the ladder makes with the ground?
C. What is the angle of the ladder with the building?
Answers
Answer:
a) ~18.95ft
b) ~58°
c) ~32°
20 large plastic bottles can be recycled to 1 fleece jacket.
How many fleece jackets can be made with 280 large plastic bottles?
Answers
Answer:
14 jackets
Step-by-step explanation:
20 plastic bottles=1 fleece jacket
280 plastic bottles=?
(280×1)÷20
=14
Factor the following quadratic expression.
2p2−19p+35
I don't get this
Answers
Answer:
(p - 7)(2p - 5)
Step-by-step explanation:
[tex]2 {p}^{2} - 19p + 35 \\ \\ = 2 {p}^{2} - 14p - 5p + 35 \\ \\ = 2p(p - 7) - 5(p - 7) \\ \\ = (p - 7)(2p - 5)[/tex]
A shelf is 36 inches long. How many DVD’s can I place on it if each one is 5/8 inches thick?
Answers
We will use the keep, change, flip rule
So instead of 36 / 5/8
We will calculate as
36 * 8/5
We will first multiply 36 * 8 = 288
Now we have 288/8 = 36
This means 36 DVDs will fit on the shelf
You can place approximately 57 DVDs on the shelf if each DVD is 5/8 inches thick. To determine the number of DVDs that can fit on a shelf, we need to divide the length of the shelf by the thickness of each DVD.
The shelf is 36 inches long, and each DVD is 5/8 inches thick.
Dividing the length of the shelf by the thickness of each DVD:
36 inches / (5/8) inches
To divide by a fraction, we multiply by its reciprocal:
36 inches * (8/5 inches)
Simplifying the multiplication:
288 inches / 5 inches
Now we can divide:
288 inches / 5 inches = 57.6
Therefore, you can place approximately 57 DVDs on the shelf if each DVD is 5/8 inches thick.
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The letters N, T, and O are arranged in a random order. What is the probability that the arrangement spells a three-letter word.
Express your answer as a simplified fraction.
Answers
Answer:
1/3Step-by-step explanation:
Three letters can be arranged in:
3! = 6 waysWe can spell two words from using the letters N, T, O:
"Not" and "Ton"So there are 2 favorable outcomes out of 6 total outcomes:
P(3-letter word) = 2/6 = 1/3Answer:
probability of getting I letter word =1/3
Match the reason with the statements please. Thank you!
Answers
Answer:
st 1 _ r 3
st 2 _ r 1
st 3 _ r 2
st 4 _ r 4
Use the identity LaTeX: \left(x+y\right)\left(x^2-xy+y^2\right)=x^3+y^3 to find the sum of two numbers if the product of the numbers is 28, the sum of the squares is 65, and the sum of the cubes of the numbers is 407.
Enter your answer as a number, like this: 42
Answers
Answer:
you just copy and pasted from your canvas assignment or something. its a bunch of random code.Step-by-step explanation:
which of the three curves drawn matches the graph of y = 2x 2 + x
Answers
What are the like terms in the expression below? 3x+8 +3y+8x
Answers
Answer:
3x and 8x
Step-by-step explanation:
They both share the same variable unlike 8 and 3y which have different variables. Once simplified, the expression should equal 11x + 8 + 3y
Answer:
3x and 8x
You see 3x and 8x are both like terms because they both have x
but..
The other 3 does not have a x it has a y
I hope this helps
Let me know
:)
Find the perimeter of the shape
Answers
Answer: 21
Step-by-step explanation:
add all the numbers together as many times as they are shown on the shape so 2.8=4 times
1.4= 2 times
and 3.5= 2 times
Which label on the cone below represents the radius? A cone. A is the base, C is the center of the base, B is the height, and D is the vertex. A B C D
Answers
Answer:
The closet answer is c
Step-by-step explanation:
Answer:
C. is the correct answer!
Step-by-step explanation:
Please help will give brainliest
Answers
Answer:
24 because 6 times 4 equal 24 and thats the area
Step-by-step explanation:
PLZZZZZZZZZZZZZZZZZZZZZ:( PLZZZZZZZZ
Answers
Answer:
12.57
Step-by-step explanation:
Harold cut 1812 inches off a rope that was 60 inches long. How is the length of the remaining rope in inches written in decimal form
Answers
Answer:
0.42
Step-by-step explanation:
The computation of the length of the remaining rope in inches is shown below:
Length Remaining = Length - the piece he cut off
Length Remaining = 60 - 18
60 - 18 = 42
To turn 42 into a decimal, you have to divide by 100 ↓
42 ÷ 100 = 0.42
The length of rope remaining is 0.42 inches long
Expert Help Please If AD=23 and BC=46, find EF.
Geometry!
Answers
Answer:
69
Step-by-step explanation:
If 46-26 =26 then 46+26=69.
What prime factor is common to 35, 84 and 21?
Answers
Answer:
7 is the prime factor that is common to all three numbers.
7x5 = 35
7x12 = 84
7x3 = 21
Let me know if this helps!
35/7=5
84/7=12
21/7=3
5, 12, and 3 don’t have any common factors so 7 is the prime factor.
does anyone know the answer??
Answers
Answer:
rational
Step-by-step explanation:
Any rational number can be expressed in the form
[tex]\frac{a}{b}[/tex] ← where a and b are integers
Given
[tex]\sqrt{4}[/tex] = - 2 or + 2
Since - 2 = [tex]\frac{-2}{1}[/tex] and 2 = [tex]\frac{2}{1}[/tex] ← both in rational form, then
[tex]\sqrt{4}[/tex] is rational
Lyla has $1 and 5 dimes in her pile. Harrison has 15 dimes in his pile. If Lyla gives Harrison $1 and
Harrison gives Lyla 10 dimes, will the two piles still be equal in value? Explain.
Select the correct choice below and fill in the answer boxes to complete your choice.
Answers
Answer:
yes, they will be equal
Step-by-step explanation:
I think they will be equal, because 10 dimes=$1
Find the value of each variable using sine and cosine. Round your answers to the nearest tenth.
Answers
Answer:
x ≈ 9.5 , y ≈ 15.3
Step-by-step explanation:
sin32° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{18}[/tex] ( multiply both sides by 18 )
18 × sin32° = x , then
x ≈ 9.5 ( to the nearest tenth )
cos32° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{18}[/tex] ( multiply both sides by 18 )
18 × cos32° = y , then
y ≈ 15.3 ( to the nearest tenth )
a street sign is 88 inches tall how tall is it in feet and inches
Answers
7x12=84
88-84=4
Answer:7ft 4 in
Select all the true statements.
(1048 – 876) ÷ 4 is four times as large as (1048 – 876).
(1048 – 876) + 24 is 24 times as large as (1048 – 876).
(1048 – 876) – 17 is seventeen less than (1048 – 876).
1/2 × (1048 – 876) is half as large as (1048 – 876).
(1048 – 876) × 4 is four more than (1048 – 876).
Answers
Answer:
C and D are are the true statements
Find the value of x in the triangle shown below.
2
7
x
Answers
Answer:
[tex] {2}^{2} + {x}^{2} = {7}^{2} \\ {x}^{2} = 49 - 4 \\ x = \sqrt{45} \\ x = 6.708[/tex]
Answer:
By using Pythagoras theorem we get
H²=p²+b²
7²=2²+x²
X²=7²-2²
X=√(49-4)=√45=3√5
Step-by-step explanation:
Solve for X
a) 6
b) 11
c) 0
d) 12
Answers
Step-by-step explanation:
2x + 210 + x + 75 = 180
3x = - 105
x = - 35
what????
what is binary numbers
Answers
I need help I don’t understand it and it can’t be negative
Answers
Answer:
20
Step-by-step explanation:
On using similar triangles we get 5x = 6x-4. So x is 4 and jk length is 24-4=20
The author also uses _________ to describe the building and to give the reader a sense of "forbidding" or imposing fear.
repetition
imagery
irony
personification
Answers
Answer:
Imagery
How:
By describing the building through imagery, explaining it's appearance/past/history/story (and assuming it's bad), gives the listener a feeling of "forbidding" or imposing fear.
DEFINITIONS:Forbidding: Unfriendly or threatening in appearance.
Imposing fear: Someone noticeably feared by something/someone.
FIND THE ANGLE OF ELEVATION. PLS HELP. ANSWER IF YOU FOR REAL KNOW THE ANSWER. I WILL MARK U BRAINLEST IF THE ANSWER IS CORRECT
Answers
Answer:
46.06
Step-by-step explanation:
the angle from the right triangle is 43.94 so you subtract from 90 and 46.06
Answer:
46 degrees
Step-by-step explanation:
acos(18/25) is 43.95
Subtract that from 90 and round and you get 46 degrees
please help I'm timed
Answers
Answer:
60 students-530 Question 1.
Step-by-step explanation: