взаимосвязь количества вещества и молекулярной массы
Authored by Надежда Назаргалина
Chemistry
8th Grade
Used 12+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите формулу для нахождения количества вещества, если известна масса
n=m/M
n=M/n
n=N/NA
n=V/VM
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Формула для нахождения массы
m=n*M
m=N*NA
m=M/n
m=V*VM
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What is Avogadro's number?
NA=6.02*1023 mole-1
NA=6.02*1023 mole
NA=0.602*1020 mole-1
NA=6.02*1022 mole-1
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How many atoms are there in 0.2 mol of methane molecules, CH4?
1.204 × 1023
6.022 × 1023
3.011 × 1024
1.204 × 1022
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How many carbon atoms are there in 12.0 g ?
12.044 × 1023
1
12
6.022 × 1023
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Чему равно число молекул в 1 моле любого вещества?
6,02*1023
1
1,67*10-24
1,67*10-27
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Чем отличается молярная масса от молекулярной массы?
количеством букв в словосочетании
ничем
единицей измерения
количеством атомов
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