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OlgaM077 [116]
2 years ago
9

A substance is tested and has a pH of 7.0. How would you classify it?

Chemistry
2 answers:
Alexandra [31]2 years ago
5 0

Answer:

C

Explanation:

The substance would be classified as neutral, so C.

Tresset [83]2 years ago
3 0
<h2>Answer:  C. Neutral</h2>

Explanation:

A substance with a pH of 7.0 is NEUTRAL (option c).

Pure water has a pH of 7.0.

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alexandr1967 [171]

Answer:

Explanation:

A 12.48 g sample of an unknown metal, heated to 99.0 °C was then plunged into 50.0 mL of 25.0 °C water. The temperature of the water rose to 28.1 Go to calculating final temperature when mixing two samples of water ... Problem #1: A 610. g piece of copper tubing is heated to 95.3 °C and placed in an ... The two rings are heated to 65.4 °C and dropped into 12.4 mL of water at 22.3 °C. ... Problem #4: A 5.00 g sample of aluminum (specific heat capacity = 0.89 J g¯1

5 0
3 years ago
Read 2 more answers
Calculate the moles and grams of solute in each solution. D. 2.0 L of 0.30M Na2SO4. I already have A, B, and C. Thanks!
e-lub [12.9K]
Find the number of moles
C = n / V
C(Concentration) = 0.30 moles / L
V ( Volume) = 2 L
n = ??
n = C * V
n = 0.30 mol / L * 2 L
n = 0.60 mol


Find the molar mass
2Na = 23 * 2 = 46 grams
1S   = 32 * 1 = 32 grams
O4   = 16 * 4 = 64 grams
Total =            142 grams / mol

Find the mass
n = given mass / molar mass
n = 0.06 mol
molar Mass = 142 grams / mol
given mass = ???

given mass = molar mass * mols
given mass = 142 * 0.6
given mass = 85.2 grams. 

85.2 are in a 2 L solution that has a concentration of 0.6 mol/L


4 0
3 years ago
Read 2 more answers
A solution of LiCl in water has XLiCl = 0.0800. What is the molality? A solution of LiCl in water has XLiCl = 0.0800. What is th
Kay [80]

Answer:

mol LiCl = 4.83 m

Explanation:

GIven:

Solution of LiCl in water XLiCl = 0.0800

Mol of water in kg = 55.55 mole

Find:

Molality

Computation:

mole fraction = mol LiCl / (mol water + mol LiCl)

0.0800 = mol LiCl / (55.55 mol + mol LiCl)

0.0800 mol LiCl + 4.444 mol = mol LiCl

mol LiCl - 0.0800 mol LiCl = 4.444 mol

0.92 mol LiCl = 4.444 mol

mol LiCl = 4.83 m

7 0
3 years ago
A dentist is using an oral rinse that consists of a 9.76 x 10-2 mol/L sodium fluoride solution. Calculate the mass of sodium flu
rjkz [21]

Answer:

3.48 g NaF

Explanation:

Dimensional Analysis:

\frac{(9.76*10^{-2})mol NaF}{1 L} * \frac{1L}{1000 mL} * \frac{41.99gNaF}{1 mol NaF} * 850 mL

Answer (Simplifying the Expression Above):

3.48 g NaF

8 0
1 year ago
In Perugino's Christ Delivering the Keys of the Kingdom to St. Peter, the artist reminds the viewer of the link between Constant
Leona [35]

Answer:

Is an exemplar of Italian Renaissance painting.

Explanation:

the Kingdom to St. Peter is an exemplar of Italian Renaissance painting. The work was part of a large decorative program commissioned by Pope Sixtus IV in 1481 for the walls of the Sistine Chapel (the name “Sistine” being derived from Sixtus’ own name), which was then, as it is today, the pope’s private chapel in the Vatican, in Rome.

6 0
3 years ago
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