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taurus [48]
3 years ago
7

PlEasE help ASAP Snskskssmskssm

Chemistry
1 answer:
salantis [7]3 years ago
5 0

Answer:

message me on messenger johnpatrick so I can help you

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Two people are playing tug of war. One person pulls to the right with 32 N of force. The other person pulls to the left with 37
Naddik [55]

Answer:

The net force is 5 N and to the left.

Explanation:

37 N - 32 N = 5 N and since there is a stronger pull from the rope moves towards the left so the direction of motion is left.

4 0
3 years ago
Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming
Assoli18 [71]
The units of ppm means parts per million. Also, It is equivalent to milligrams per liter. It is one way of expressing concentration of a substance. It u<span>sually used to describe the concentration of something in water or soil. We calculate the mass of CaCO3 as follows:

Mass = 75 mg/L (.050 L) = <span>3.75 mg CaCO3</span></span>
7 0
3 years ago
Ethanol (C2H5OH) is produced from the fermentation of sucrose in the presence of enzymes.
Klio2033 [76]

Explanation:

to calculate theoratical yield...first we must calculate how much Sucrose moles we have..in order to to do so...we must calculate molar mass of sucrose.

molar mass of sucrose is 342.3 g/mol.

now we can calculate how many sucrose moles we have by dividing the mass with molar mass of sucrose

735g/(342.3g/mol)=2.147mol

theoratically...according to stoichiometry..every 1 mole of sucrose yields 4 moles of ethanol...so...

2.147mole yield 2.147*4mol=8.588mol

now we must calculate weight of that much ethanol..molar mass of ethanol is 46.07 g/mol...

so we can multiple moles by molar mass to obtain the weight 8.588mol*46.07g/mol=395.649g

but we only obtained 310.5g...so percentage we have is

\frac{310.5}{395.649}  \times 100

78.47%

if there is trouble with molar mases I used....use what you calculated...

If my explanation is good enough...please mark it as brainliest.thanks

5 0
3 years ago
A student wishes to prepare 25mL of 0.1M NaOH from 6M NaOH.
liraira [26]

Answer:

Na(OH)4

Explanation:

Look at the charges and add them up

Na(OH) Na(OH)

7 0
3 years ago
Why does every chemical reaction require
Lana71 [14]

Every chemical reaction requires a reactant, also called a reagents.

3 0
4 years ago
Read 2 more answers
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