Answered

Ang Imhr.ca ay narito upang tulungan kang makahanap ng mga sagot sa lahat ng iyong mga katanungan mula sa mga eksperto. Nagbibigay ang aming Q&A platform ng seamless na karanasan para sa paghahanap ng mapagkakatiwalaang sagot mula sa isang network ng mga bihasang propesyonal. Kumuha ng mabilis at mapagkakatiwalaang mga solusyon sa iyong mga tanong mula sa isang komunidad ng mga bihasang eksperto sa aming platform.

5. By mass, this compound is made up of 30.4% N and 69.6% O. What is the correct chemical formula of this compound?
a. NO3
b. NO
c. NO2
d. N2O3
6. The atomic mass of C is 12 amu while H is 1 amu. The molar mass of CH4 is 16 g/mol. What is the percentage composition of CH4?
a. 50% C; 50% H
b. 90% C; 10% H
c. 12% C; 16% H
d. 75% C; 25% H
7. Phosphoric acid is a clear and odorless liquid found in carbonated beverages. What is the percentage composition by mass of H?
a. 31.61%
b. 3.061%
c. 6.20%
d. 65.31%
8. What is the molecular formula of a compound having an empirical formula of C2H5O and a molecular mass of 90 g/mol?
a. C5H14O
b. C4H26O
c. C4H10O2
d. C3H6O3
9. Which of the following is the empirical formula of alkanes with a molar mass of 58 g/mol?
a. C2H5
b. C4H10
c. CH2.5
d. C8H20
10. Which of the following sets of empirical formula, molar mass, and molecular formula is correct?
a. C6H12O6, 342 g/mol, C12H22O11

Sagot :

marcandrelegaria018

Answer:

5. By mass, this compound is made up of 30.4% N and 69.6% O. What is the correct chemical formula of this compound?

a. NO3

b. NO

c. NO2

d. N2O3

6. The atomic mass of C is 12 amu while H is 1 amu. The molar mass of CH4 is 16 g/mol. What is the percentage composition of CH4?

a. 50% C; 50% H

b. 90% C; 10% H

c. 12% C; 16% H

d. 75% C; 25% H

7. Phosphoric acid is a clear and odorless liquid found in carbonated beverages. What is the percentage composition by mass of H?

a. 31.61%

b. 3.061%

c. 6.20%

d. 65.31%

8. What is the molecular formula of a compound having an empirical formula of C2H5O and a molecular mass of 90 g/mol?

a. C5H14O

b. C4H26O

c. C4H10O2

d. C3H6O3

9. Which of the following is the empirical formula of alkanes with a molar mass of 58 g/mol?

a. C2H5

b. C4H10

c. CH2.5

d. C8H20

10. Which of the following sets of empirical formula, molar mass, and molecular formula is correct?

a. C6H12O6, 342 g/mol, C12H22O11

Explanation:

#LETS BRAINLY

#LETS STUDY

# CARRY ON LEARNING

Salamat sa pagbisita. Ang aming layunin ay magbigay ng pinaka-tumpak na mga sagot para sa lahat ng iyong pangangailangan sa impormasyon. Bumalik kaagad. Mahalaga sa amin ang iyong pagbisita. Huwag mag-atubiling bumalik para sa higit pang maaasahang mga sagot sa anumang mga tanong na mayroon ka. Maraming salamat sa pagbisita sa Imhr.ca. Bumalik muli para sa higit pang kapaki-pakinabang na impormasyon at sagot mula sa aming mga eksperto.